Merge branch 'dev_1.17.5' into add_redux

Samples/UIWidgetsSamples_2019_4/Assets/UIWidgetsGallery/demo/cupertino/cupertino_picker_demo.cs

 using Unity.UIWidgets.service;
 using Unity.UIWidgets.ui;
 using Unity.UIWidgets.widgets;
+using UnityEngine;
 using TextStyle = Unity.UIWidgets.painting.TextStyle;
 using Brightness = Unity.UIWidgets.ui.Brightness;
 
       }
       Widget _buildCountdownTimerPicker(BuildContext context) {
         return new GestureDetector(
-          onTap: () =>{
+          onTap: () =>
+          {
-              builder: (BuildContext context1) =>{
+              builder: (BuildContext context1) =>
+              {
-                    onTimerDurationChanged: (newTimer) =>{
+                    onTimerDurationChanged: (TimeSpan newTimer) =>{
                       setState(() => timer = newTimer);
                     }
                   )
               builder: (BuildContext context1) =>
               {
                 return new _BottomPicker(
-                  child: new  CupertinoDatePicker(
+                  child:  new  CupertinoDatePicker(
                     backgroundColor: CupertinoColors.systemBackground.resolveFrom(context1),
                     mode: CupertinoDatePickerMode.date,
                     initialDateTime: date,
         );
       }
     }
-  }
-
-
-
+  
-  D.assert(child != null);
-  this.child = child;
+    D.assert(child != null);
+    this.child = child;
-
-  public override Widget build(BuildContext context) {
+  public override Widget build(BuildContext context)
+  {
-      height: 216,
-      padding: EdgeInsets.only(top: 6),
-      margin: EdgeInsets.only(
-        bottom: MediaQuery.of(context).viewInsets.bottom
-      ),
-      color: CupertinoColors.systemBackground.resolveFrom(context),
+      height: CupertinoPickerDemoUtils._kPickerSheetHeight,
+      padding: EdgeInsets.only(top: 6.0f),
+      color: CupertinoColors.label.resolveFrom(context).darkColor,
-          fontSize: 22
+          fontSize: 22.0f
-          // Blocks taps from propagating to the modal sheet and popping.
-          onTap: ()=> {},
-          child:  new SafeArea(
-            top: false,
-            child: child
-          )
+          onTap: () =>{ },
+          child: new SafeArea(
+              top: false,
+              child: child
+            )
+
 }
 
 public class _Menu : StatelessWidget {
     );
   }
 }
+}

Samples/UIWidgetsSamples_2019_4/Assets/UIWidgetsGallery/demo/material/backdrop_demo.cs

                             onTap: () => { this.onTap?.Invoke(); },
                             child: new Container(
                                 height: 48.0f,
-                                //TODO: uncomment this when fixes on EdgeInsetsDirectional lands
-                                //padding: EdgeInsetsDirectional.only(start: 16.0f),
-                                padding: EdgeInsets.only(left: 16.0f),
+                                padding: EdgeInsetsDirectional.only(start: 16.0f),
                                 alignment: AlignmentDirectional.centerStart,
                                 child: new DefaultTextStyle(
                                     style: theme.textTheme.subtitle1,

Samples/UIWidgetsSamples_2019_4/Assets/UIWidgetsGallery/demo/material/selection_controls_demo.cs

 
         private bool checkboxValueA = true;
         private bool checkboxValueB = false;
-        private bool checkboxValueC;
+        private bool? checkboxValueC;
         private int radioValue = 0;
         private bool switchValue = false;
 
                                 new Checkbox(
                                     value: checkboxValueC,
                                     tristate: true,
-                                    onChanged: (bool? value) => { setState(() => { checkboxValueC = value.Value; }); }
+                                    onChanged: (bool? value) => { setState(() => { checkboxValueC = value; }); }
                                 )
                             }
                         ),

com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs

                 var pos = _getPointerPosition(evt.mousePosition);
                 _wrapper.OnMouseMove(pos);
             }
+            else if (evt.type == EventType.ScrollWheel && evt.delta.magnitude != 0) {
+                var delta = evt.delta;
+                delta.y /= 3f;
+                var pos = _getPointerPosition(evt.mousePosition);
+                _wrapper.OnMouseScroll(delta, pos);
+            }
             
         }
         

com.unity.uiwidgets/Runtime/cupertino/context_menu.cs

     public class _CupertinoContextMenuState :  TickerProviderStateMixin<CupertinoContextMenu> { 
 
         public readonly GlobalKey _childGlobalKey = GlobalKey<State<StatefulWidget>>.key();
-        static readonly TimeSpan  kLongPressTimeout = TimeSpan.FromMilliseconds(500);//new TimeSpan(0, 0, 0, 0, 500);
+        static readonly TimeSpan  kLongPressTimeout = TimeSpan.FromMilliseconds(500);
         public bool _childHidden = false;
         public AnimationController _openController;
         public Rect _decoyChildEndRect;
         public Orientation _lastOrientation;
         public readonly Rect _previousChildRect;
         public float _scale = 1.0f;
-        public readonly GlobalKey _sheetGlobalKey = new LabeledGlobalKey<State<StatefulWidget>>();//GlobalKey();
+        public readonly GlobalKey _sheetGlobalKey = new LabeledGlobalKey<State<StatefulWidget>>();
         public readonly static CurveTween _curve = new CurveTween(
             curve: Curves.easeOutBack
         ); 
         public readonly Tween< float> _opacityTween = new FloatTween(begin: 0.0f, end: 1.0f);
         public Animation< float> _sheetOpacity;
       
-        public readonly string barrierLabel;
-      //public override string barrierLabel;
-        public Color barrierColor {
+        //public readonly string barrierLabel;
+        public override string barrierLabel { get; }
+
+        public override Color barrierColor {
-        public bool barrierDismissible{ 
+        public override bool barrierDismissible{ 
-        public bool semanticsDismissible { 
+        public override bool semanticsDismissible { 
-        public TimeSpan transitionDuration {
+        public override TimeSpan transitionDuration {
-        /*public static AlignmentDirectional getSheetAlignment(_ContextMenuLocation contextMenuLocation) {
+        public static AlignmentDirectional getSheetAlignment(_ContextMenuLocation contextMenuLocation) {
             switch (contextMenuLocation) {
                 case _ContextMenuLocation.center:
                     return AlignmentDirectional.topCenter;
                     return AlignmentDirectional.topStart;
             }
-        }*/
+        }
         public static Rect _getScaledRect(GlobalKey globalKey,  float scale) {
             Rect childRect = CupertinoContextMenuUtils._getRect(globalKey);
             Size sizeScaled = childRect.size * scale;
             base.offstage = _externalOffstage || _internalOffstage;
             changedInternalState();
         }
-        public bool didPop(object result) {
+
+        protected internal override bool didPop(object result) {
-        public bool offstage{
+        public override bool offstage{
            set{
                _externalOffstage = value;
                _setOffstageInternally();
-        public TickerFuture didPush() {
+        protected internal override TickerFuture didPush() {
             _internalOffstage = true;
             _setOffstageInternally();
             SchedulerBinding.instance.addPostFrameCallback((TimeSpan timeSpan)=>{
             });
             return base.didPush();
         }
-        public Animation<float> createAnimation() { 
+        public override Animation<float> createAnimation() { 
             Animation< float> animation = base.createAnimation();
             _sheetOpacity = _opacityTween.animate(new CurvedAnimation(
                 parent: animation,
                                 child: new Opacity(
                                     opacity: _sheetOpacity.value, 
                                     child: Transform.scale( 
-                                        //alignment: getSheetAlignment(_contextMenuLocation),
+                                        alignment: getSheetAlignment(_contextMenuLocation),
                                         scale: sheetScale, 
                                         child: new _ContextMenuSheet(
                                             key: _sheetGlobalKey, 
     // Build the animation for the _ContextMenuSheet.
     Widget _buildSheetAnimation(BuildContext context, Widget child) {
       return Transform.scale(
-        //alignment: _ContextMenuRoute.getSheetAlignment(widget.contextMenuLocation),
+        alignment: _ContextMenuRoute.getSheetAlignment(widget.contextMenuLocation),
         scale: _sheetScaleAnimation.value,
         child: new Opacity(
           opacity: _sheetOpacityAnimation.value,
       );
       _sheetController = new AnimationController(
         duration: TimeSpan.FromMilliseconds(100),
-        reverseDuration: TimeSpan.FromMilliseconds(300),/// TBC ???
+        reverseDuration: TimeSpan.FromMilliseconds(300),
         vsync: this
       );
       _sheetScaleAnimation = new FloatTween(

com.unity.uiwidgets/Runtime/cupertino/date_picker.cs

         Alignment alignCenterLeft;
         Alignment alignCenterRight;
         
-        int selectedHour = 0;
-        int selectedMinute = 0;
-        int selectedSecond = 0;
+        int selectedHour;
+        int selectedMinute;
+        int selectedSecond;
-        int lastSelectedHour = 0;
-        int lastSelectedMinute = 0;
-        int lastSelectedSecond = 0;
+        int lastSelectedHour;
+        int lastSelectedMinute;
+        int lastSelectedSecond;
-        float numberLabelWidth = 0f;
-        float numberLabelHeight = 0f;
-        float numberLabelBaseline = 0f;
+        float numberLabelWidth;
+        float numberLabelHeight;
+        float numberLabelBaseline;
+            
             if (widget.mode != CupertinoTimerPickerMode.ms) {
                 selectedHour = (int) widget.initialTimerDuration.TotalHours;
             }
             }
+            PaintingBinding.instance.systemFonts.addListener(_handleSystemFontsChange);
         }
         void _handleSystemFontsChange() {
             setState(() =>{
             numberLabelWidth = textPainter.maxIntrinsicWidth;
             numberLabelHeight = textPainter.height;
             numberLabelBaseline = textPainter.computeDistanceToActualBaseline(TextBaseline.alphabetic);
-        }
+        } 
-            EdgeInsetsDirectional padding = EdgeInsetsDirectional.only(
-                start: numberLabelWidth
-                       + CupertinoDatePickerUtils._kTimerPickerLabelPadSize
-                       + pickerPadding.start
+             EdgeInsetsDirectional padding = EdgeInsetsDirectional.only(
+              start: numberLabelWidth
+                   + CupertinoDatePickerUtils._kTimerPickerLabelPadSize
+                   + pickerPadding.start
-                child: new Container(
-                    alignment: AlignmentDirectional.centerStart.resolve(textDirection),
-                    padding: padding.resolve(textDirection),
-                    child: new SizedBox(
-                        height: numberLabelHeight,
-                        child: new Baseline(
-                            baseline: numberLabelBaseline,
-                            baselineType: TextBaseline.alphabetic,
-                            child: new Text(
-                                text,
-                                style: new TextStyle(
-                fontSize: CupertinoDatePickerUtils._kTimerPickerLabelFontSize,
-                fontWeight: FontWeight.w600),
-                maxLines: 1,
-                softWrap: false)))
-                ));
-        }
-        Widget _buildPickerNumberLabel(string text, EdgeInsetsDirectional padding) {
-            return new Container(
-                width: CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth + padding.horizontal,
+              child: new Container(
+                alignment: AlignmentDirectional.centerStart.resolve(textDirection),
-                alignment: AlignmentDirectional.centerStart.resolve(textDirection),
-                child: new Container(
-                    width: numberLabelWidth,
-                    alignment: AlignmentDirectional.centerEnd.resolve(textDirection),
-                    child: new Text(text, softWrap: false, maxLines: 1, overflow: TextOverflow.visible)
+                child: new SizedBox(
+                  height: numberLabelHeight,
+                  child: new Baseline(
+                    baseline: numberLabelBaseline,
+                    baselineType: TextBaseline.alphabetic,
+                    child: new  Text(
+                      text,
+                      style: new TextStyle(
+                        fontSize: CupertinoDatePickerUtils._kTimerPickerLabelFontSize,
+                        fontWeight: FontWeight.w600
+                      ),
+                      maxLines: 1,
+                      softWrap: false
+                    )
+                  )
+              )
-        }
-        Widget _buildHourPicker(EdgeInsetsDirectional additionalPadding) {
-            List<Widget> widgets = new List<Widget>();
-            for (int index = 0; index < 24; index++) {
-                string semanticsLabel = textDirectionFactor == 1
-                    ? localizations.timerPickerHour(index) + localizations.timerPickerHourLabel(index)
-                    : localizations.timerPickerHourLabel(index) + localizations.timerPickerHour(index);
+          }
-                widgets.Add( _buildPickerNumberLabel(localizations.timerPickerHour(index), additionalPadding));
-            }
+  
+          Widget _buildPickerNumberLabel(string text, EdgeInsetsDirectional padding) {
+            return new Container(
+              width: CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth + padding.horizontal,
+              padding: padding.resolve(textDirection),
+              alignment: AlignmentDirectional.centerStart.resolve(textDirection),
+              child: new Container(
+                width: numberLabelWidth,
+                alignment: AlignmentDirectional.centerEnd.resolve(textDirection),
+                child: new Text(text, softWrap: false, maxLines: 1, overflow: TextOverflow.visible)
+              )
+            );
+          }
+          Widget _buildHourPicker(EdgeInsetsDirectional additionalPadding) {
-                scrollController: new FixedExtentScrollController(initialItem: selectedHour),
-                offAxisFraction: -0.5f * textDirectionFactor,
-                itemExtent: CupertinoDatePickerUtils._kItemExtent,
-                backgroundColor: ((CupertinoTimerPicker)widget).backgroundColor,
-                squeeze: CupertinoDatePickerUtils._kSqueeze,
-                onSelectedItemChanged: (int index)=> {
-                setState(()=> {
-                    selectedHour = index;
-                    widget.onTimerDurationChanged(
-                        new TimeSpan(
-                            hours: selectedHour,
-                            minutes: selectedMinute,
-                            seconds: selectedSecond != 0 ? selectedSecond : 0));
+              scrollController: new FixedExtentScrollController(initialItem: selectedHour),
+              offAxisFraction: -0.5f * textDirectionFactor,
+              itemExtent: CupertinoDatePickerUtils._kItemExtent,
+              backgroundColor: widget.backgroundColor,
+              squeeze: CupertinoDatePickerUtils._kSqueeze,
+              onSelectedItemChanged: (int index)=> {
+                setState(() =>{
+                  selectedHour = index;
+                  widget.onTimerDurationChanged(
+                    new TimeSpan(
+                      hours: selectedHour,
+                      minutes: selectedMinute,
+                      seconds: selectedSecond == 0 ? 0 : selectedHour));
-            },
-            children: widgets
+              },
+              children: CupertinoDatePickerUtils.listGenerate(24, (int index) => {
+                 string semanticsLabel = textDirectionFactor == 1
+                  ? localizations.timerPickerHour(index) + localizations.timerPickerHourLabel(index)
+                  : localizations.timerPickerHourLabel(index) + localizations.timerPickerHour(index);
+
+                 return _buildPickerNumberLabel(localizations.timerPickerHour(index), additionalPadding);
+              })
-        }
+          }
-        
-        Widget _buildHourColumn(EdgeInsetsDirectional additionalPadding) {
+          Widget _buildHourColumn(EdgeInsetsDirectional additionalPadding) {
-                children: new List<Widget>{
-                    new NotificationListener<ScrollEndNotification>(
-                        onNotification: (ScrollEndNotification notification)=> { 
-                            setState(()=> { lastSelectedHour = selectedHour; }); 
-                            return false;
-                    }, 
-                        child: _buildHourPicker(additionalPadding)
-                        ), 
-                    _buildLabel(
-                        localizations.timerPickerHourLabel(lastSelectedHour == 0 ? selectedHour : lastSelectedHour), 
-                        additionalPadding
-                        ),
-                });
-        }
-        Widget _buildMinutePicker(EdgeInsetsDirectional additionalPadding) { 
-            List<Widget> widgets = new List<Widget>();
-            for (int index = 0; index < (int)(60 / widget.minuteInterval); index++) {
-                int minute = index * widget.minuteInterval;
+              children: new List<Widget>{
+                new NotificationListener<ScrollEndNotification>(
+                  onNotification: (ScrollEndNotification notification)=> {
+                    setState(()=> { lastSelectedHour = selectedHour; });
+                    return false;
+                  },
+                  child: _buildHourPicker(additionalPadding)
+                ),
+                _buildLabel(
+                  localizations.timerPickerHourLabel(lastSelectedHour == 0  ? selectedHour :  lastSelectedHour),
+                  additionalPadding
+                ),
+              }
+            );
+          }
-                string semanticsLabel = textDirectionFactor == 1
-                    ? localizations.timerPickerMinute(minute) + localizations.timerPickerMinuteLabel(minute)
-                    : localizations.timerPickerMinuteLabel(minute) + localizations.timerPickerMinute(minute);
-
-                widgets.Add(_buildPickerNumberLabel(localizations.timerPickerMinute(minute), additionalPadding)
-                );
-            }
+          Widget _buildMinutePicker(EdgeInsetsDirectional additionalPadding) {
-            switch (widget.mode) { 
-                case CupertinoTimerPickerMode.hm: 
-                    offAxisFraction = 0.5f * textDirectionFactor;
+            switch (widget.mode) {
+              case CupertinoTimerPickerMode.hm:
+                offAxisFraction = 0.5f * textDirectionFactor;
-            case CupertinoTimerPickerMode.hms:
+              case CupertinoTimerPickerMode.hms:
-            case CupertinoTimerPickerMode.ms:
+              case CupertinoTimerPickerMode.ms:
-                break;
-            }
-
+                  break;
+                
+            } 
-                scrollController: new FixedExtentScrollController(
-                    initialItem: (int) (selectedMinute / widget.minuteInterval)
-                ),
-                offAxisFraction: offAxisFraction,
-                itemExtent: CupertinoDatePickerUtils._kItemExtent,
-                backgroundColor: widget.backgroundColor,
-                squeeze: CupertinoDatePickerUtils._kSqueeze,
-                looping: true,
-                onSelectedItemChanged: (int index) => {
-                    setState(() => {
-                        selectedMinute = index * widget.minuteInterval;
-                        widget.onTimerDurationChanged(
-                            new TimeSpan(
-                                hours: selectedHour == 0 ? 0 : selectedHour,
-                                minutes: selectedMinute,
-                                seconds: selectedSecond == 0 ? 0 : selectedSecond));
-                    });
-                },
-                children: widgets
-                );
-
+              scrollController: new FixedExtentScrollController(
+                initialItem: (int)selectedMinute / widget.minuteInterval
+              ),
+              offAxisFraction: offAxisFraction,
+              itemExtent: CupertinoDatePickerUtils._kItemExtent,
+              backgroundColor: widget.backgroundColor,
+              squeeze: CupertinoDatePickerUtils._kSqueeze,
+              looping: true,
+              onSelectedItemChanged: (int index) => {
+                setState(() =>{
+                  selectedMinute = index * widget.minuteInterval;
+                  widget.onTimerDurationChanged(
+                    new TimeSpan(
+                      hours: selectedHour == 0 ? 0 : selectedHour,
+                      minutes: selectedMinute,
+                      seconds: selectedSecond == 0 ? 0 : selectedSecond ));
+                });
+              },
+              children: CupertinoDatePickerUtils.listGenerate((int)(60 / widget.minuteInterval), (int index) => {
+                 int minute = index * widget.minuteInterval;
+                 string semanticsLabel = textDirectionFactor == 1
+                  ? localizations.timerPickerMinute(minute) + localizations.timerPickerMinuteLabel(minute)
+                  : localizations.timerPickerMinuteLabel(minute) + localizations.timerPickerMinute(minute);
+                 return _buildPickerNumberLabel(localizations.timerPickerMinute(minute), additionalPadding);
+              })
+            );
+          }
-        }
-        Widget _buildMinuteColumn(EdgeInsetsDirectional additionalPadding) { 
+          Widget _buildMinuteColumn(EdgeInsetsDirectional additionalPadding) {
-                    setState(()=> { lastSelectedMinute = selectedMinute; });
+                    setState(() => { lastSelectedMinute = selectedMinute; });
                     return false;
                   },
                   child: _buildMinutePicker(additionalPadding)
                 ),
               }
             );
-        }
-        Widget _buildSecondPicker(EdgeInsetsDirectional additionalPadding) { 
-            float offAxisFraction = 0.5f * textDirectionFactor;
+          }
+
+          Widget _buildSecondPicker(EdgeInsetsDirectional additionalPadding) {
+             float offAxisFraction = 0.5f * textDirectionFactor;
+
-                scrollController: new FixedExtentScrollController(
-                    initialItem: (int)(selectedSecond / widget.secondInterval)
-                    ), 
-                offAxisFraction: offAxisFraction,
-                itemExtent: CupertinoDatePickerUtils._kItemExtent,
-                backgroundColor: widget.backgroundColor,
-                squeeze: CupertinoDatePickerUtils._kSqueeze,
-                looping: true,
-                onSelectedItemChanged: (int index) =>{ 
-                    setState(()=> { 
-                        selectedSecond = index * widget.secondInterval; 
-                        widget.onTimerDurationChanged(
-                            new TimeSpan(
-                                hours: selectedHour == 0 ? 0 : selectedHour, 
-                                minutes: selectedMinute, 
-                                seconds: selectedSecond)); 
-                    });
-              }, 
-                children: CupertinoDatePickerUtils.listGenerate((int)60 / widget.secondInterval, (int index)=> { 
-                    int second = index * widget.secondInterval;
-                    string semanticsLabel = textDirectionFactor == 1 
-                        ? localizations.timerPickerSecond(second) + localizations.timerPickerSecondLabel(second) 
-                        : localizations.timerPickerSecondLabel(second) + localizations.timerPickerSecond(second);
+              scrollController: new FixedExtentScrollController(
+                initialItem: (int) selectedSecond / widget.secondInterval
+              ),
+              offAxisFraction: offAxisFraction,
+              itemExtent: CupertinoDatePickerUtils._kItemExtent,
+              backgroundColor: widget.backgroundColor,
+              squeeze: CupertinoDatePickerUtils._kSqueeze,
+              looping: true,
+              onSelectedItemChanged: (int index)=> {
+                setState(() => {
+                  selectedSecond = index * widget.secondInterval;
+                  widget.onTimerDurationChanged(
+                    new TimeSpan(
+                      hours: selectedHour == 0 ? 0 : selectedHour,
+                      minutes: selectedMinute,
+                      seconds: selectedSecond));
+                });
+              },
+              children: CupertinoDatePickerUtils.listGenerate((int) (60 / widget.secondInterval), (int index)=> {
+                 int second = index * widget.secondInterval;
-                    return _buildPickerNumberLabel(localizations.timerPickerSecond(second), additionalPadding);
-                })
-                ); 
-        }
-        Widget _buildSecondColumn(EdgeInsetsDirectional additionalPadding) {
+                 string semanticsLabel = textDirectionFactor == 1
+                  ? localizations.timerPickerSecond(second) + localizations.timerPickerSecondLabel(second)
+                  : localizations.timerPickerSecondLabel(second) + localizations.timerPickerSecond(second);
+                 return _buildPickerNumberLabel(localizations.timerPickerSecond(second), additionalPadding); 
+              })
+            );
+          }
+
+          Widget _buildSecondColumn(EdgeInsetsDirectional additionalPadding) {
-                children: new List<Widget>{
-                    new NotificationListener<ScrollEndNotification>(
-                        onNotification: (ScrollEndNotification notification)=> { 
-                            setState(()=> { lastSelectedSecond = selectedSecond; }); 
-                            return false;
+              children: new List<Widget>{
+                new NotificationListener<ScrollEndNotification>(
+                  onNotification: (ScrollEndNotification notification)=> {
+                    setState(() => { lastSelectedSecond = selectedSecond; });
+                    return false;
                   },
                   child: _buildSecondPicker(additionalPadding)
                 ),
                 )
               }
             );
-        }
-        TextStyle _textStyleFrom(BuildContext context) { 
+          }
+
+          TextStyle _textStyleFrom(BuildContext context) {
-                .pickerTextStyle.merge(
-                    new TextStyle(
-              fontSize: CupertinoDatePickerUtils._kTimerPickerNumberLabelFontSize
-            )
-          );
-        }
+              .pickerTextStyle.merge(
+                new TextStyle(
+                  fontSize: CupertinoDatePickerUtils._kTimerPickerNumberLabelFontSize
+                )
+              );
+          }
+          public override Widget build(BuildContext context) {
+              List<Widget> columns = new List<Widget>();
+            float paddingValue = CupertinoDatePickerUtils._kPickerWidth - 2 * CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth - 2 * CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding;
+          
+            float totalWidth = CupertinoDatePickerUtils._kPickerWidth;
+            D.assert(paddingValue >= 0);
-
-        public override Widget build(BuildContext context) {
-            List<Widget> columns =  new List<Widget>(); 
-            float paddingValue = CupertinoDatePickerUtils._kPickerWidth - 
-                                 2 * CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth - 2 * CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding;
-            float totalWidth = CupertinoDatePickerUtils._kPickerWidth; 
-            D.assert(paddingValue >= 0);
-            switch (widget.mode) { 
-                case CupertinoTimerPickerMode.hm:
-                    
-                    columns = new List<Widget>{
-                            _buildHourColumn(EdgeInsetsDirectional.only(start: paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)), 
-                            _buildMinuteColumn(EdgeInsetsDirectional.only(start:CupertinoDatePickerUtils. _kTimerPickerHalfColumnPadding, end: paddingValue / 2)),}; 
-                    break; 
-                case CupertinoTimerPickerMode.ms:
-                    columns = new List<Widget>{
-                        _buildMinuteColumn(EdgeInsetsDirectional.only(start: paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)), 
-                        _buildSecondColumn(EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: paddingValue / 2)),
-                        
-                    };
-                 
-                     break;
-                case CupertinoTimerPickerMode.hms:
-                    float _paddingValue = CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding * 2;
-                    totalWidth = CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth * 3 + 4 * CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding + _paddingValue;
-                    columns = new List<Widget>{ 
-                        _buildHourColumn(EdgeInsetsDirectional.only(start: _paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
-                        _buildMinuteColumn(EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
-                        _buildSecondColumn(EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: _paddingValue / 2)),
+            switch (widget.mode) {
+              case CupertinoTimerPickerMode.hm:
+                // Pad the widget to make it as wide as `_kPickerWidth`.
+                columns = new List<Widget>{
+                  _buildHourColumn( EdgeInsetsDirectional.only(start: paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
+                  _buildMinuteColumn( EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: paddingValue / 2)),
+                };
+                break;
+              case CupertinoTimerPickerMode.ms:
+                // Pad the widget to make it as wide as `_kPickerWidth`.
+                columns = new List<Widget>{
+                  _buildMinuteColumn( EdgeInsetsDirectional.only(start: paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
+                  _buildSecondColumn( EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: paddingValue / 2)),
+                };
+                break;
+              case CupertinoTimerPickerMode.hms:
+                 float _paddingValue = CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding * 2;
+                totalWidth = CupertinoDatePickerUtils._kTimerPickerColumnIntrinsicWidth * 3 + 4 * CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding + _paddingValue;
+                columns = new List<Widget>{
+                  _buildHourColumn( EdgeInsetsDirectional.only(start: _paddingValue / 2, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
+                  _buildMinuteColumn( EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding)),
+                  _buildSecondColumn( EdgeInsetsDirectional.only(start: CupertinoDatePickerUtils._kTimerPickerHalfColumnPadding, end: _paddingValue / 2)),
-                break; 
+                break;
-            CupertinoThemeData themeData = CupertinoTheme.of(context);
-            List<Widget> results = new List<Widget>();
-            foreach (var result in columns.Select((Widget child) => new Expanded(child: child)).ToList()) {
-               results.Add((Widget)result);
-            }
-
-            
+             CupertinoThemeData themeData = CupertinoTheme.of(context);
-                data: MediaQuery.of(context).copyWith(textScaleFactor: 1.0f),
-                child: new CupertinoTheme(
-                    data: themeData.copyWith(
-                        textTheme: themeData.textTheme.copyWith(pickerTextStyle: _textStyleFrom(context))
-                    ),
-                    child: new Align(
-                        alignment: widget.alignment,
-                        child: new Container(
-                            color: CupertinoDynamicColor.resolve(widget.backgroundColor, context),
-                            width: totalWidth,
-                            height: CupertinoDatePickerUtils._kPickerHeight,
-                            child: new DefaultTextStyle(
-                                style: _textStyleFrom(context),
-                                child: new Row(children: results
-                                )
-                            )
-                        )
+              // The native iOS picker's text scaling is fixed, so we will also fix it
+              // as well in our picker.
+              data: MediaQuery.of(context).copyWith(textScaleFactor: 1.0f),
+              child: new CupertinoTheme(
+                data: themeData.copyWith(
+                  textTheme: themeData.textTheme.copyWith(
+                    pickerTextStyle: _textStyleFrom(context)
+                  )
+                ),
+                child: new Align(
+                  alignment: widget.alignment,
+                  child: new Container(
+                    color: CupertinoDynamicColor.resolve(widget.backgroundColor, context),
+                    width: totalWidth,
+                    height: CupertinoDatePickerUtils._kPickerHeight,
+                    child: new DefaultTextStyle(
+                      style: _textStyleFrom(context),
+                      child: new Row(
+                          children:
+                              columns.Select((Widget child) => {
+                                      var result = new Expanded(child: child);
+                                      return (Widget) result;
+                              }).ToList()
+                          )
-
+                  )
+              )
-        }
+          }
+
 
     }
 }

com.unity.uiwidgets/Runtime/cupertino/dialog.cs

         }
     }
 
-    /*class _DialogActionButtonParentData : MultiChildLayoutParentData {
-        public _DialogActionButtonParentData(
-            bool isPressed = false
-        ) {
-            this.isPressed = isPressed;
-        }
-
-        public bool isPressed;
-    }*/
-
     public class CupertinoDialogAction : StatelessWidget {
         public CupertinoDialogAction(
             Key key = null,

com.unity.uiwidgets/Runtime/cupertino/segmented_control.cs

               data: iconTheme,
               child: new DefaultTextStyle(
                 style: textStyle,
-                child: child /*Semantics(
-                  button: true,
-                  inMutuallyExclusiveGroup: true,
-                  selected: widget.groupValue.Equals(currentKey),
-                  child: child
-                )*/
+                child: child 
               )
             )
           );

com.unity.uiwidgets/Runtime/cupertino/switch.cs

         void _handleTap() {
             if (isInteractive) {
                 widget.onChanged(!widget.value);
-                //_emitVibration();
             }
         }
 
             if (isInteractive) {
                 needsPositionAnimation = false;
                 _reactionController.forward();
-                //_emitVibration();
             }
         }
 

com.unity.uiwidgets/Runtime/material/app.cs

 using System.Collections.Generic;
+using uiwidgets;
 using Unity.UIWidgets.animation;
 using Unity.UIWidgets.cupertino;
 using Unity.UIWidgets.foundation;
             List<NavigatorObserver> navigatorObservers = null,
             TransitionBuilder builder = null,
             string title = "",
+            GenerateAppTitle onGenerateTitle = null,
             Color color = null,
             ThemeData theme = null,
             ThemeData darkTheme = null,
             this.navigatorObservers = navigatorObservers ?? new List<NavigatorObserver>();
             this.builder = builder;
             this.title = title;
+            this.onGenerateTitle = onGenerateTitle;
             this.color = color;
             this.theme = theme;
             this.darkTheme = darkTheme;
 
         public readonly string title;
 
+        public readonly GenerateAppTitle onGenerateTitle;
+        
         public readonly ThemeData theme;
 
         public readonly ThemeData darkTheme;
                     );
                 },
                 textStyle: material_._errorTextStyle,
+                title: widget.title,
+                onGenerateTitle: widget.onGenerateTitle,
+                color: widget.color ?? widget.theme?.primaryColor ?? Colors.blue,
                 locale: widget.locale,
                 localizationsDelegates: _localizationsDelegates,
                 localeResolutionCallback: widget.localeResolutionCallback,

com.unity.uiwidgets/Runtime/material/divider.cs

                     child: new Container(
                         height: thickness,
                         //TODO: update to EdgeInsetsGeometry
-                        /*margin: EdgeInsetsDirectional.only(start: indent,
-                            end: endIndent),*/
+                        margin: EdgeInsetsDirectional.only(start: indent,
+                            end: endIndent),
                         decoration: new BoxDecoration(
                             border: new Border(
                                 bottom: createBorderSide(context, color: color, width: thickness))

com.unity.uiwidgets/Runtime/material/navigation_rail_theme.cs

             );
         }
 
-        static NavigationRailThemeData lerp(NavigationRailThemeData a, NavigationRailThemeData b, float t) {
+        public static NavigationRailThemeData lerp(NavigationRailThemeData a, NavigationRailThemeData b, float t) {
             if (a == null && b == null)
                 return null;
             return new NavigationRailThemeData(

com.unity.uiwidgets/Runtime/material/pickers/date_picker_head.cs

                             new Container(
                                 height: DatePickerHeaderUtils._datePickerHeaderPortraitHeight,
                                 color: primarySurfaceColor,
-                                //FixMe: uncomment this after EdgeInsetsGeometry is ready for use
-                                /*padding: EdgeInsetsDirectional.only(
+                                padding: EdgeInsetsDirectional.only(
-                                ),*/
+                                ),
                                 child: new Column(
                                     crossAxisAlignment: CrossAxisAlignment.start,
                                     children: new List<Widget> {

com.unity.uiwidgets/Runtime/material/theme_data.cs

 using System.Collections.Generic;
 using System.Linq;
 using uiwidgets;
+using Unity.UIWidgets.animation;
+using Unity.UIWidgets.painting;
 using Unity.UIWidgets.rendering;
 using Unity.UIWidgets.ui;
 using Unity.UIWidgets.widgets;
             Color bottomAppBarColor = null,
             Color cardColor = null,
             Color dividerColor = null,
+            Color focusColor = null,
+            Color hoverColor = null,
             Color highlightColor = null,
             Color splashColor = null,
             InteractiveInkFeatureFactory splashFactory = null,
             Color buttonColor = null,
             ButtonThemeData buttonTheme = null,
+            ToggleButtonsThemeData toggleButtonsTheme = null,
             Color secondaryHeaderColor = null,
             Color textSelectionColor = null,
             Color cursorColor = null,
             IconThemeData accentIconTheme = null,
             SliderThemeData sliderTheme = null,
             TabBarTheme tabBarTheme = null,
+            TooltipThemeData tooltipTheme = null,
             CardTheme cardTheme = null,
             ChipThemeData chipTheme = null,
             RuntimePlatform? platform = null,
             ColorScheme colorScheme = null,
             DialogTheme dialogTheme = null,
             FloatingActionButtonThemeData floatingActionButtonTheme = null,
+            NavigationRailThemeData navigationRailTheme = null,
             Typography typography = null,
             SnackBarThemeData snackBarTheme = null,
             BottomSheetThemeData bottomSheetTheme = null,
             }
 
             buttonColor = buttonColor ?? (isDark ? primarySwatch[600] : Colors.grey[300]);
+            focusColor = focusColor ??(isDark ? Colors.white.withOpacity(0.12f) : Colors.black.withOpacity(0.12f));
+            hoverColor = hoverColor ??(isDark ? Colors.white.withOpacity(0.04f) : Colors.black.withOpacity(0.04f));
+                focusColor: focusColor,
+                hoverColor: hoverColor,
-            disabledColor = disabledColor ?? (isDark ? Colors.white30 : Colors.black38);
+            toggleButtonsTheme = toggleButtonsTheme?? new ToggleButtonsThemeData();
+            disabledColor = disabledColor ?? (isDark ? Colors.white38 : Colors.black38);
             highlightColor = highlightColor ??
                              (isDark
                                  ? material_._kDarkThemeHighlightColor
                 valueIndicatorTextStyle: accentTextTheme.body2);
 
             tabBarTheme = tabBarTheme ?? new TabBarTheme();
+            tooltipTheme = tooltipTheme ?? new TooltipThemeData();
-                labelStyle: textTheme.body2
+                labelStyle: textTheme.bodyText1
+            navigationRailTheme = navigationRailTheme ?? new NavigationRailThemeData();
             snackBarTheme = snackBarTheme ?? new SnackBarThemeData();
             bottomSheetTheme = bottomSheetTheme ?? new BottomSheetThemeData();
             popupMenuTheme = popupMenuTheme ?? new PopupMenuThemeData();
             this.bottomAppBarColor = bottomAppBarColor;
             this.cardColor = cardColor;
             this.dividerColor = dividerColor;
+            this.focusColor = focusColor;
+            this.hoverColor = hoverColor;
             this.highlightColor = highlightColor;
             this.splashColor = splashColor;
             this.splashFactory = splashFactory;
             this.buttonTheme = buttonTheme;
+            this.toggleButtonsTheme = toggleButtonsTheme;
             this.buttonColor = buttonColor;
             this.secondaryHeaderColor = secondaryHeaderColor;
             this.textSelectionColor = textSelectionColor;
             this.accentIconTheme = accentIconTheme;
             this.sliderTheme = sliderTheme;
             this.tabBarTheme = tabBarTheme;
+            this.tooltipTheme = tooltipTheme;
             this.cardTheme = cardTheme;
             this.chipTheme = chipTheme;
             this.platform = platform.Value;
             this.colorScheme = colorScheme;
             this.dialogTheme = dialogTheme;
             this.floatingActionButtonTheme = floatingActionButtonTheme;
+            this.navigationRailTheme = navigationRailTheme;
             this.typography = typography;
             this.snackBarTheme = snackBarTheme;
             this.bottomSheetTheme = bottomSheetTheme;
             Color bottomAppBarColor = null,
             Color cardColor = null,
             Color dividerColor = null,
+            Color focusColor = null,
+            Color hoverColor = null,
             Color highlightColor = null,
             Color splashColor = null,
             InteractiveInkFeatureFactory splashFactory = null,
             ButtonThemeData buttonTheme = null,
             Color buttonColor = null,
+            ToggleButtonsThemeData toggleButtonsTheme = null,
             Color secondaryHeaderColor = null,
             Color textSelectionColor = null,
             Color cursorColor = null,
             IconThemeData primaryIconTheme = null,
             IconThemeData accentIconTheme = null,
             TabBarTheme tabBarTheme = null,
+            TooltipThemeData tooltipTheme = null,
             CardTheme cardTheme = null,
             ChipThemeData chipTheme = null,
             RuntimePlatform? platform = null,
             ColorScheme colorScheme = null,
             DialogTheme dialogTheme = null,
             FloatingActionButtonThemeData floatingActionButtonTheme = null,
+            NavigationRailThemeData navigationRailTheme = null,
             Typography typography = null,
             SnackBarThemeData snackBarTheme = null,
             BottomSheetThemeData bottomSheetTheme = null,
             D.assert(bottomAppBarColor != null);
             D.assert(cardColor != null);
             D.assert(dividerColor != null);
+            D.assert(focusColor != null);
+            D.assert(hoverColor != null);
             D.assert(highlightColor != null);
             D.assert(splashColor != null);
             D.assert(splashFactory != null);
             D.assert(toggleableActiveColor != null);
             D.assert(buttonTheme != null);
+            D.assert(toggleButtonsTheme != null);
             D.assert(secondaryHeaderColor != null);
             D.assert(textSelectionColor != null);
             D.assert(cursorColor != null);
             D.assert(typography != null);
             D.assert(buttonColor != null);
             D.assert(tabBarTheme != null);
+            D.assert(tooltipTheme != null);
+            D.assert(navigationRailTheme != null);
             D.assert(snackBarTheme != null);
             D.assert(bottomSheetTheme != null);
             D.assert(popupMenuTheme != null);
 
             return new ThemeData(
                 brightness: brightness,
+                visualDensity: visualDensity,
                 primaryColor: primaryColor,
                 primaryColorBrightness: primaryColorBrightness,
                 primaryColorLight: primaryColorLight,
                 bottomAppBarColor: bottomAppBarColor,
                 cardColor: cardColor,
                 dividerColor: dividerColor,
+                focusColor: focusColor,
+                hoverColor: hoverColor,
                 highlightColor: highlightColor,
                 splashColor: splashColor,
                 splashFactory: splashFactory,
                 buttonTheme: buttonTheme,
                 buttonColor: buttonColor,
+                toggleButtonsTheme: toggleButtonsTheme,
                 toggleableActiveColor: toggleableActiveColor,
                 secondaryHeaderColor: secondaryHeaderColor,
                 textSelectionColor: textSelectionColor,
                 accentIconTheme: accentIconTheme,
                 sliderTheme: sliderTheme,
                 tabBarTheme: tabBarTheme,
+                tooltipTheme:tooltipTheme,
                 cardTheme: cardTheme,
                 chipTheme: chipTheme,
                 platform: platform,
                 colorScheme: colorScheme,
                 dialogTheme: dialogTheme,
                 floatingActionButtonTheme: floatingActionButtonTheme,
+                navigationRailTheme: navigationRailTheme,
                 typography: typography,
                 snackBarTheme: snackBarTheme,
                 bottomSheetTheme: bottomSheetTheme,
             Color bottomAppBarColor = null,
             Color cardColor = null,
             Color dividerColor = null,
+            Color focusColor = null,
+            Color hoverColor = null,
             Color highlightColor = null,
             Color splashColor = null,
             InteractiveInkFeatureFactory splashFactory = null,
             ButtonThemeData buttonTheme = null,
+            ToggleButtonsThemeData toggleButtonsTheme = null,
             Color buttonColor = null,
             Color secondaryHeaderColor = null,
             Color textSelectionColor = null,
             IconThemeData primaryIconTheme = null,
             IconThemeData accentIconTheme = null,
             TabBarTheme tabBarTheme = null,
+            TooltipThemeData tooltipTheme = null,
             CardTheme cardTheme = null,
             ChipThemeData chipTheme = null,
             RuntimePlatform? platform = null,
             ColorScheme colorScheme = null,
             DialogTheme dialogTheme = null,
             FloatingActionButtonThemeData floatingActionButtonTheme = null,
+            NavigationRailThemeData navigationRailTheme = null,
             Typography typography = null,
             SnackBarThemeData snackBarTheme = null,
             BottomSheetThemeData bottomSheetTheme = null,
                 bottomAppBarColor: bottomAppBarColor ?? this.bottomAppBarColor,
                 cardColor: cardColor ?? this.cardColor,
                 dividerColor: dividerColor ?? this.dividerColor,
+                focusColor: focusColor ?? this.focusColor,
+                hoverColor: hoverColor ?? this.hoverColor,
                 highlightColor: highlightColor ?? this.highlightColor,
                 splashColor: splashColor ?? this.splashColor,
                 splashFactory: splashFactory ?? this.splashFactory,
                 buttonTheme: buttonTheme ?? this.buttonTheme,
+                toggleButtonsTheme: toggleButtonsTheme ?? this.toggleButtonsTheme,
                 buttonColor: buttonColor ?? this.buttonColor,
                 secondaryHeaderColor: secondaryHeaderColor ?? this.secondaryHeaderColor,
                 textSelectionColor: textSelectionColor ?? this.textSelectionColor,
                 primaryIconTheme: primaryIconTheme ?? this.primaryIconTheme,
                 accentIconTheme: accentIconTheme ?? this.accentIconTheme,
                 tabBarTheme: tabBarTheme ?? this.tabBarTheme,
+                tooltipTheme: tooltipTheme ?? this.tooltipTheme,
                 cardTheme: cardTheme ?? this.cardTheme,
                 chipTheme: chipTheme ?? this.chipTheme,
                 platform: platform ?? this.platform,
                 colorScheme: colorScheme ?? this.colorScheme,
                 dialogTheme: dialogTheme ?? this.dialogTheme,
                 floatingActionButtonTheme: floatingActionButtonTheme ?? this.floatingActionButtonTheme,
+                navigationRailTheme: navigationRailTheme ?? this.navigationRailTheme,
                 typography: typography ?? this.typography,
                 snackBarTheme: snackBarTheme ?? this.snackBarTheme,
                 bottomSheetTheme: bottomSheetTheme ?? this.bottomSheetTheme,
                 bottomAppBarColor: Color.lerp(a.bottomAppBarColor, b.bottomAppBarColor, t),
                 cardColor: Color.lerp(a.cardColor, b.cardColor, t),
                 dividerColor: Color.lerp(a.dividerColor, b.dividerColor, t),
+                focusColor: Color.lerp(a.focusColor, b.focusColor, t),
+                hoverColor: Color.lerp(a.hoverColor, b.hoverColor, t),
                 highlightColor: Color.lerp(a.highlightColor, b.highlightColor, t),
                 splashColor: Color.lerp(a.splashColor, b.splashColor, t),
                 splashFactory: t < 0.5 ? a.splashFactory : b.splashFactory,
                 buttonTheme: t < 0.5 ? a.buttonTheme : b.buttonTheme,
+                toggleButtonsTheme: ToggleButtonsThemeData.lerp(a.toggleButtonsTheme, b.toggleButtonsTheme, t),
                 buttonColor: Color.lerp(a.buttonColor, b.buttonColor, t),
                 secondaryHeaderColor: Color.lerp(a.secondaryHeaderColor, b.secondaryHeaderColor, t),
                 textSelectionColor: Color.lerp(a.textSelectionColor, b.textSelectionColor, t),
                 accentIconTheme: IconThemeData.lerp(a.accentIconTheme, b.accentIconTheme, t),
                 sliderTheme: SliderThemeData.lerp(a.sliderTheme, b.sliderTheme, t),
                 tabBarTheme: TabBarTheme.lerp(a.tabBarTheme, b.tabBarTheme, t),
+                tooltipTheme: TooltipThemeData.lerp(a.tooltipTheme, b.tooltipTheme, t),
                 cardTheme: CardTheme.lerp(a.cardTheme, b.cardTheme, t),
                 chipTheme: ChipThemeData.lerp(a.chipTheme, b.chipTheme, t),
                 platform: t < 0.5 ? a.platform : b.platform,
                 dialogTheme: DialogTheme.lerp(a.dialogTheme, b.dialogTheme, t),
                 floatingActionButtonTheme: FloatingActionButtonThemeData.lerp(a.floatingActionButtonTheme,
                     b.floatingActionButtonTheme, t),
+                navigationRailTheme: NavigationRailThemeData.lerp(a.navigationRailTheme, b.navigationRailTheme, t),
                 typography: Typography.lerp(a.typography, b.typography, t),
                 snackBarTheme: SnackBarThemeData.lerp(a.snackBarTheme, b.snackBarTheme, t),
                 bottomSheetTheme: BottomSheetThemeData.lerp(a.bottomSheetTheme, b.bottomSheetTheme, t),
                    other.bottomAppBarColor == bottomAppBarColor &&
                    other.cardColor == cardColor &&
                    other.dividerColor == dividerColor &&
+                   other.focusColor == focusColor &&
+                   other.hoverColor == hoverColor &&
                    other.highlightColor == highlightColor &&
                    other.splashColor == splashColor &&
                    other.splashFactory == splashFactory &&
                    other.buttonTheme == buttonTheme &&
+                   other.toggleButtonsTheme == toggleButtonsTheme &&
                    other.buttonColor == buttonColor &&
                    other.secondaryHeaderColor == secondaryHeaderColor &&
                    other.textSelectionColor == textSelectionColor &&
                    other.primaryIconTheme == primaryIconTheme &&
                    other.accentIconTheme == accentIconTheme &&
                    other.tabBarTheme == tabBarTheme &&
+                   other.tooltipTheme == tooltipTheme &&
                    other.cardTheme == cardTheme &&
                    other.chipTheme == chipTheme &&
                    other.platform == platform &&
                    other.colorScheme == colorScheme &&
                    other.dialogTheme == dialogTheme &&
                    other.floatingActionButtonTheme == floatingActionButtonTheme &&
+                   other.navigationRailTheme == navigationRailTheme &&
                    other.typography == typography &&
                    other.snackBarTheme == snackBarTheme &&
                    other.bottomSheetTheme == bottomSheetTheme && 
                 hashCode = (hashCode * 397) ^ bottomAppBarColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ cardColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ dividerColor.GetHashCode();
+                hashCode = (hashCode * 397) ^ focusColor.GetHashCode();
+                hashCode = (hashCode * 397) ^ hoverColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ highlightColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ splashColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ splashFactory.GetHashCode();
                 hashCode = (hashCode * 397) ^ buttonTheme.GetHashCode();
+                hashCode = (hashCode * 397) ^ toggleButtonsTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ buttonColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ secondaryHeaderColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ textSelectionColor.GetHashCode();
                 hashCode = (hashCode * 397) ^ accentIconTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ sliderTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ tabBarTheme.GetHashCode();
+                hashCode = (hashCode * 397) ^ tooltipTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ cardTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ chipTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ platform.GetHashCode();
                 hashCode = (hashCode * 397) ^ colorScheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ dialogTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ floatingActionButtonTheme.GetHashCode();
+                hashCode = (hashCode * 397) ^ navigationRailTheme.GetHashCode();
                 hashCode = (hashCode * 397) ^ typography.GetHashCode();
                 hashCode = (hashCode * 397) ^ snackBarTheme.GetHashCode(); 
                 hashCode = (hashCode * 397) ^ bottomSheetTheme.GetHashCode();
                 defaultValue: defaultData.cardColor));
             properties.add(new DiagnosticsProperty<Color>("dividerColor", dividerColor,
                 defaultValue: defaultData.dividerColor));
+            properties.add(new ColorProperty("focusColor", focusColor, defaultValue: defaultData.focusColor, level: DiagnosticLevel.debug));
+            properties.add(new ColorProperty("hoverColor", hoverColor, defaultValue: defaultData.hoverColor, level: DiagnosticLevel.debug));
             properties.add(new DiagnosticsProperty<Color>("highlightColor", highlightColor,
                 defaultValue: defaultData.highlightColor));
             properties.add(new DiagnosticsProperty<Color>("splashColor", splashColor,
             properties.add(new DiagnosticsProperty<Color>("disabledColor", disabledColor,
                 defaultValue: defaultData.disabledColor));
             properties.add(new DiagnosticsProperty<ButtonThemeData>("buttonTheme", buttonTheme));
+            properties.add(new DiagnosticsProperty<ToggleButtonsThemeData>("toggleButtonsTheme", toggleButtonsTheme, level: DiagnosticLevel.debug));
             properties.add(new DiagnosticsProperty<Color>("buttonColor", buttonColor,
                 defaultValue: defaultData.buttonColor));
             properties.add(new DiagnosticsProperty<Color>("secondaryHeaderColor", secondaryHeaderColor,
             properties.add(new DiagnosticsProperty<IconThemeData>("accentIconTheme", accentIconTheme));
             properties.add(new DiagnosticsProperty<SliderThemeData>("sliderTheme", sliderTheme));
             properties.add(new DiagnosticsProperty<TabBarTheme>("tabBarTheme", tabBarTheme));
+            properties.add(new DiagnosticsProperty<TooltipThemeData>("tooltipTheme", tooltipTheme, level: DiagnosticLevel.debug));
             properties.add(new DiagnosticsProperty<CardTheme>("cardTheme", cardTheme));
             properties.add(new DiagnosticsProperty<ChipThemeData>("chipTheme", chipTheme));
             properties.add(
                 defaultValue: defaultData.dialogTheme));
             properties.add(new DiagnosticsProperty<FloatingActionButtonThemeData>("floatingActionButtonTheme",
                 floatingActionButtonTheme, defaultValue: defaultData.floatingActionButtonTheme));
+            properties.add(new DiagnosticsProperty<NavigationRailThemeData>("navigationRailThemeData", navigationRailTheme, defaultValue: defaultData.navigationRailTheme, level: DiagnosticLevel.debug));
             properties.add(new DiagnosticsProperty<Typography>("typography", typography,
                 defaultValue: defaultData.typography));
             properties.add(new DiagnosticsProperty<SnackBarThemeData>("snackBarTheme", snackBarTheme, defaultValue: defaultData.snackBarTheme, level: DiagnosticLevel.debug));

com.unity.uiwidgets/Runtime/painting/basic_types.cs

             Axis axis,
             bool reverse) {
             switch (axis) {
-                /*case Axis.horizontal:
-                    return reverse ? AxisDirection.left : AxisDirection.right;
-                case Axis.vertical:
-                    return reverse ? AxisDirection.up : AxisDirection.down;*/
                 case Axis.horizontal:
                     D.assert(WidgetsD.debugCheckHasDirectionality(context));
                     TextDirection textDirection = Directionality.of(context);

com.unity.uiwidgets/Runtime/painting/image_stream.cs

                 return true;
             }
 
-            return Equals(image, other.image) && scale.Equals(other.scale);
+            return image.Equals(other.image) && scale.Equals(other.scale);
         }
 
         public override bool Equals(object obj) {

com.unity.uiwidgets/Runtime/rendering/binding.cs

         }
         
         readonly protected bool inEditorWindow;
-        
-
-       /* MouseTracker _createMouseTracker() {
-            return new MouseTracker(pointerRouter, (Offset offset) => {
-                return renderView.layer.find<MouseTrackerAnnotation>(
-                    offset
-                );
-            }, inEditorWindow);
-        }*/
 
         protected virtual void drawFrame() {
             D.assert(renderView != null);

com.unity.uiwidgets/Runtime/rendering/layer.cs

             }
         }
 
-        /*internal override S find<S>(Offset regionOffset) {
-            return null;
-        }*/
-
         public override void addToScene(SceneBuilder builder, Offset layerOffset = null) {
             layerOffset = layerOffset ?? Offset.zero;
             builder.addPicture(layerOffset, picture,
         }
         
 
-        /*internal override S find<S>(Offset regionOffset) {
-            Layer current = lastChild;
-            while (current != null) {
-                S value = current.find<S>(regionOffset);
-                if (value != null) {
-                    return value;
-                }
-
-                current = current.previousSibling;
-            }
-
-            return null;
-        }*/
         public override bool findAnnotations<S>(
             AnnotationResult<S> result,
             Offset localPosition, 
             base.debugFillProperties(properties);
             properties.add(new DiagnosticsProperty<Offset>("offset", offset));
         }
-
-        /*public Scene buildScene(SceneBuilder builder) {
-            List<PictureLayer> temporaryLayers = null;
-            D.assert(() => {
-                if (RenderingDebugUtils.debugCheckElevationsEnabled) {
-                    temporaryLayers = _debugCheckElevations();
-                }
-
-                return true;
-            });
-            updateSubtreeNeedsAddToScene();
-            addToScene(builder);
-            Scene scene = builder.build();
-            D.assert(() => {
-                if (temporaryLayers != null) {
-                    foreach (PictureLayer temporaryLayer in temporaryLayers) {
-                        temporaryLayer.remove();
-                    }
-                }
-
-                return true;
-            });
-            return scene;
-        }*/
 
         public Future<ui.Image> toImage(Rect bounds, float pixelRatio = 1.0f)// async
         {

com.unity.uiwidgets/Runtime/rendering/list_wheel_viewport.cs

                 untransformedPaintingCoordinates.dx,
                 -_topScrollMarginExtent
             );
-
-
+            
             bool shouldApplyOffCenterDim = overAndUnderCenterOpacity < 1;
             if (useMagnifier || shouldApplyOffCenterDim) {
                 _paintChildWithMagnifier(context, offset, child, transform, offsetToCenter, untransformedPaintingCoordinates);
                         context1.pushTransform(
                             needsCompositing,
                             offset1,
-                            cylindricalTransform,
-                            // this._centerOriginTransform(cylindricalTransform),
+                            _magnifyTransform(),
                             (PaintingContext context2, Offset offset2) => {
                                 context2.paintChild(child, offset2 + untransformedPaintingCoordinates);
                             });

com.unity.uiwidgets/Runtime/rendering/paragraph.cs

         bool _hasHoverRecognizer;
         MouseTrackerAnnotation _hoverAnnotation;
 
-        /*void _resetHoverHandler() {
-            _hasHoverRecognizer = (_textPainter.text as TextSpan)?.hasHoverRecognizer ?? false;
-            _previousHoverSpan = null;
-            _pointerHoverInside = false;
-
-            if (_hoverAnnotation != null && attached) {
-                RendererBinding.instance.mouseTracker.detachAnnotation(_hoverAnnotation);
-            }
-
-            if (_hasHoverRecognizer) {
-                _hoverAnnotation = new MouseTrackerAnnotation(
-                    onEnter: _onPointerEnter,
-                    onHover: _onPointerHover,
-                    onExit: _onPointerExit);
-
-                if (attached) {
-                    RendererBinding.instance.mouseTracker.attachAnnotation(_hoverAnnotation);
-                }
-            }
-            else {
-                _hoverAnnotation = null;
-            }
-        }*/
 
         void _handleKeyEvent(RawKeyEvent keyEvent) {
             //only allow KCommand.copy
             }
 
             base.detach();
-            /*if (_hoverAnnotation != null) {
-                RendererBinding.instance.mouseTracker.dispose();//detachAnnotation(_hoverAnnotation);
-            }*/
+          
         }
 
         TextSelection _selection;
             _pointerHoverInside = true;
         }
 
-        /*void _onPointerExit(PointerEvent evt) {
-            _pointerHoverInside = false;
-            (_previousHoverSpan as TextSpan)?.hoverRecognizer?.OnPointerLeave?.Invoke();
-            _previousHoverSpan = null;
-        }*/
-
-        /*void _onPointerHover(PointerEvent evt) {
-            _layoutTextWithConstraints(constraints);
-            Offset offset = globalToLocal(evt.position);
-            TextPosition position = _textPainter.getPositionForOffset(offset);
-            InlineSpan span = _textPainter.text.getSpanForPosition(position);
-
-            if (_previousHoverSpan != span) {
-                (_previousHoverSpan as TextSpan)?.hoverRecognizer?.OnPointerLeave?.Invoke();
-                (span as TextSpan)?.hoverRecognizer?.OnPointerEnter?.Invoke((PointerHoverEvent) evt);
-                _previousHoverSpan = span;
-            }
-        }*/
+      
 
         public override void handleEvent(PointerEvent evt, HitTestEntry entry) {
             D.assert(debugHandleEvent(evt, entry));

com.unity.uiwidgets/Runtime/rendering/proxy_box.cs

     public delegate void PointerScrollEventListener(PointerScrollEvent evt);
 
 
-    /*public class RenderPointerListener : RenderProxyBoxWithHitTestBehavior {
-        public RenderPointerListener(
-            PointerDownEventListener onPointerDown = null,
-            PointerMoveEventListener onPointerMove = null,
-            PointerEnterEventListener onPointerEnter = null,
-            PointerHoverEventListener onPointerHover = null,
-            PointerExitEventListener onPointerExit = null,
-            PointerUpEventListener onPointerUp = null,
-            PointerCancelEventListener onPointerCancel = null,
-            PointerSignalEventListener onPointerSignal = null,
-            PointerScrollEventListener onPointerScroll = null,
-            PointerDragFromEditorEnterEventListener onPointerDragFromEditorEnter = null,
-            PointerDragFromEditorHoverEventListener onPointerDragFromEditorHover = null,
-            PointerDragFromEditorExitEventListener onPointerDragFromEditorExit = null,
-            PointerDragFromEditorReleaseEventListener onPointerDragFromEditorRelease = null,
-            HitTestBehavior behavior = HitTestBehavior.deferToChild,
-            RenderBox child = null
-        ) : base(behavior: behavior, child: child) {
-            this.onPointerDown = onPointerDown;
-            this.onPointerMove = onPointerMove;
-            this.onPointerUp = onPointerUp;
-            this.onPointerCancel = onPointerCancel;
-            this.onPointerSignal = onPointerSignal;
-            this.onPointerScroll = onPointerScroll;
-
-            _onPointerEnter = onPointerEnter;
-            _onPointerHover = onPointerHover;
-            _onPointerExit = onPointerExit;
-
-            _onPointerDragFromEditorEnter = onPointerDragFromEditorEnter;
-            _onPointerDragFromEditorHover = onPointerDragFromEditorHover;
-            _onPointerDragFromEditorExit = onPointerDragFromEditorExit;
-            _onPointerDragFromEditorRelease = onPointerDragFromEditorRelease;
-
-            if (_onPointerEnter != null ||
-                _onPointerHover != null ||
-                _onPointerExit != null ||
-                _onPointerDragFromEditorEnter != null ||
-                _onPointerDragFromEditorHover != null ||
-                _onPointerDragFromEditorExit != null ||
-                _onPointerDragFromEditorRelease != null
-            ) {
-                _hoverAnnotation = new MouseTrackerAnnotation(
-                    onEnter: _onPointerEnter,
-                    onHover: _onPointerHover,
-                    onExit: _onPointerExit,
-                    onDragFromEditorEnter: _onPointerDragFromEditorEnter,
-                    onDragFromEditorHover: _onPointerDragFromEditorHover,
-                    onDragFromEditorExit: _onPointerDragFromEditorExit,
-                    onDragFromEditorRelease: _onPointerDragFromEditorRelease
-                );
-            }
-        }
-
-        PointerDragFromEditorEnterEventListener _onPointerDragFromEditorEnter;
-
-        public PointerDragFromEditorEnterEventListener onPointerDragFromEditorEnter {
-            get { return _onPointerDragFromEditorEnter; }
-            set {
-                if (_onPointerDragFromEditorEnter != value) {
-                    _onPointerDragFromEditorEnter = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerDragFromEditorExitEventListener _onPointerDragFromEditorExit;
-
-        public PointerDragFromEditorExitEventListener onPointerDragFromEditorExit {
-            get { return _onPointerDragFromEditorExit; }
-            set {
-                if (_onPointerDragFromEditorExit != value) {
-                    _onPointerDragFromEditorExit = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerDragFromEditorHoverEventListener _onPointerDragFromEditorHover;
-
-        public PointerDragFromEditorHoverEventListener onPointerDragFromEditorHover {
-            get { return _onPointerDragFromEditorHover; }
-            set {
-                if (_onPointerDragFromEditorHover != value) {
-                    _onPointerDragFromEditorHover = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerDragFromEditorReleaseEventListener _onPointerDragFromEditorRelease;
-
-        public PointerDragFromEditorReleaseEventListener onPointerDragFromEditorRelease {
-            get { return _onPointerDragFromEditorRelease; }
-            set {
-                if (_onPointerDragFromEditorRelease != value) {
-                    _onPointerDragFromEditorRelease = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        public PointerEnterEventListener onPointerEnter {
-            get { return _onPointerEnter; }
-            set {
-                if (_onPointerEnter != value) {
-                    _onPointerEnter = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerEnterEventListener _onPointerEnter;
-
-        public PointerHoverEventListener onPointerHover {
-            get { return _onPointerHover; }
-            set {
-                if (_onPointerHover != value) {
-                    _onPointerHover = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerHoverEventListener _onPointerHover;
-
-        public PointerExitEventListener onPointerExit {
-            get { return _onPointerExit; }
-            set {
-                if (_onPointerExit != value) {
-                    _onPointerExit = value;
-                    _updateAnnotations();
-                }
-            }
-        }
-
-        PointerExitEventListener _onPointerExit;
-
-        public PointerDownEventListener onPointerDown;
-
-        public PointerMoveEventListener onPointerMove;
-
-        public PointerUpEventListener onPointerUp;
-
-        public PointerCancelEventListener onPointerCancel;
-
-        public PointerSignalEventListener onPointerSignal;
-
-        public PointerScrollEventListener onPointerScroll;
-
-        MouseTrackerAnnotation _hoverAnnotation;
-
-        public MouseTrackerAnnotation hoverAnnotation {
-            get { return _hoverAnnotation; }
-        }
-
-        void _updateAnnotations() {
-            D.assert(_onPointerEnter != _hoverAnnotation.onEnter ||
-                     _onPointerHover != _hoverAnnotation.onHover ||
-                     _onPointerExit != _hoverAnnotation.onExit
-#if UNITY_EDITOR
-                     || _onPointerDragFromEditorEnter != _hoverAnnotation.onDragFromEditorEnter
-                     || _onPointerDragFromEditorHover != _hoverAnnotation.onDragFromEditorHover
-                     || _onPointerDragFromEditorExit != _hoverAnnotation.onDragFromEditorExit
-                     || _onPointerDragFromEditorRelease != _hoverAnnotation.onDragFromEditorRelease
-#endif
-                , () => "Shouldn't call _updateAnnotations if nothing has changed.");
-
-            if (_hoverAnnotation != null && attached) {
-                RendererBinding.instance.mouseTracker.detachAnnotation(_hoverAnnotation);
-            }
-
-            if (_onPointerEnter != null ||
-                _onPointerHover != null ||
-                _onPointerExit != null
-#if UNITY_EDITOR
-                || _onPointerDragFromEditorEnter != null
-                || _onPointerDragFromEditorHover != null
-                || _onPointerDragFromEditorExit != null
-                || _onPointerDragFromEditorRelease != null
-#endif
-            ) {
-                _hoverAnnotation = new MouseTrackerAnnotation(
-                    onEnter: _onPointerEnter,
-                    onHover: _onPointerHover,
-                    onExit: _onPointerExit
-#if UNITY_EDITOR
-                    , onDragFromEditorEnter: _onPointerDragFromEditorEnter
-                    , onDragFromEditorHover: _onPointerDragFromEditorHover
-                    , onDragFromEditorExit: _onPointerDragFromEditorExit
-                    , onDragFromEditorRelease: _onPointerDragFromEditorRelease
-#endif
-                );
-
-                if (attached) {
-                    RendererBinding.instance.mouseTracker.attachAnnotation(_hoverAnnotation);
-                }
-            }
-            else {
-                _hoverAnnotation = null;
-            }
-
-            markNeedsPaint();
-        }
-
-        public override void attach(object owner) {
-            base.attach(owner);
-            if (_hoverAnnotation != null) {
-                RendererBinding.instance.mouseTracker.attachAnnotation(_hoverAnnotation);
-            }
-        }
-
-        public override void detach() {
-            base.detach();
-            if (_hoverAnnotation != null) {
-                RendererBinding.instance.mouseTracker.detachAnnotation(_hoverAnnotation);
-            }
-        }
-
-        public override void paint(PaintingContext context, Offset offset) {
-            if (_hoverAnnotation != null) {
-                AnnotatedRegionLayer<MouseTrackerAnnotation> layer = new AnnotatedRegionLayer<MouseTrackerAnnotation>(
-                    _hoverAnnotation, size: size, offset: offset);
-
-                context.pushLayer(layer, base.paint, offset);
-            }
-            else {
-                base.paint(context, offset);
-            }
-        }
-
-        protected override void performResize() {
-            size = constraints.biggest;
-        }
-
-        public override void handleEvent(PointerEvent evt, HitTestEntry entry) {
-            D.assert(debugHandleEvent(evt, entry));
-
-            if (onPointerDown != null && evt is PointerDownEvent) {
-                onPointerDown((PointerDownEvent) evt);
-                return;
-            }
-
-            if (onPointerMove != null && evt is PointerMoveEvent) {
-                onPointerMove((PointerMoveEvent) evt);
-                return;
-            }
-
-            if (onPointerUp != null && evt is PointerUpEvent) {
-                onPointerUp((PointerUpEvent) evt);
-                return;
-            }
-
-            if (onPointerCancel != null && evt is PointerCancelEvent) {
-                onPointerCancel((PointerCancelEvent) evt);
-                return;
-            }
-
-            if (onPointerSignal != null && evt is PointerSignalEvent) {
-                onPointerSignal((PointerSignalEvent) evt);
-                return;
-            }
-
-            if (onPointerScroll != null && evt is PointerScrollEvent) {
-                onPointerScroll((PointerScrollEvent) evt);
-            }
-        }
-
-        public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
-            base.debugFillProperties(properties);
-            var listeners = new List<string>();
-            if (onPointerDown != null) {
-                listeners.Add("down");
-            }
-
-            if (onPointerMove != null) {
-                listeners.Add("move");
-            }
-
-            if (onPointerEnter != null) {
-                listeners.Add("enter");
-            }
-
-            if (onPointerHover != null) {
-                listeners.Add("hover");
-            }
-
-            if (onPointerExit != null) {
-                listeners.Add("exit");
-            }
-
-            if (onPointerUp != null) {
-                listeners.Add("up");
-            }
-
-            if (onPointerCancel != null) {
-                listeners.Add("cancel");
-            }
-
-            if (onPointerSignal != null) {
-                listeners.Add("signal");
-            }
-
-            if (listeners.isEmpty()) {
-                listeners.Add("<none>");
-            }
-
-            properties.add(new EnumerableProperty<string>("listeners", listeners));
-        }
-    }*/
+    
     class RenderPointerListener : RenderProxyBoxWithHitTestBehavior {
         public RenderPointerListener(
             PointerDownEventListener onPointerDown = null,

com.unity.uiwidgets/Runtime/rendering/proxy_sliver.cs

             };
         }
     }
-    /*public class RenderSliverAnimatedOpacity : RenderProxySliver ,RenderAnimatedOpacityMixin<RenderSliver>{
-        public RenderSliverAnimatedOpacity(
-        Animation<double> opacity = null,
-        bool alwaysIncludeSemantics = false,
-            RenderSliver sliver = null
-        ):base(sliver) {
-            D.assert(opacity != null);
-            D.assert(alwaysIncludeSemantics != null);
-            this.opacity = opacity;
-            this.alwaysIncludeSemantics = alwaysIncludeSemantics;
-            child = sliver;
-        }
-    }*/
-
-
+    
 }

com.unity.uiwidgets/Runtime/scheduler2/binding.cs

 
         Completer _nextFrameCompleter;
 
-        Future endOfFrame {
+        public Future endOfFrame {
             get {
                 if (_nextFrameCompleter == null) {
                     if (schedulerPhase == SchedulerPhase.idle)

com.unity.uiwidgets/Runtime/ui2/painting.cs

 using System.Runtime.InteropServices;
 using System.Text;
 using AOT;
+using Unity.UIWidgets.animation;
 using Unity.UIWidgets.async2;
 using Unity.UIWidgets.foundation;
 using UnityEngine;
         public int rowBytes;
     }
 
-    public class Image : NativeWrapperDisposable {
+    public class Image : NativeWrapperDisposable, IEquatable<Image> {
         internal Image(IntPtr ptr) : base(ptr) {
         }
 
                 Debug.LogException(ex);
             }
         }
-
+        
         public override string ToString() => $"[{width}\u00D7{height}]";
 
         [DllImport(NativeBindings.dllName)]
         [DllImport(NativeBindings.dllName)]
         static extern IntPtr Image_toByteData(IntPtr ptr, int format, Image_toByteDataCallback callback,
             IntPtr callbackHandle);
+
+        public bool Equals(Image other) {
+            return other != null && width == other.width && height == other.height && _ptr.Equals(other._ptr);
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (ReferenceEquals(null, obj)) {
+                return false;
+            }
+
+            if (ReferenceEquals(this, obj)) {
+                return true;
+            }
+
+            if (obj.GetType() != GetType()) {
+                return false;
+            }
+
+            return Equals((Image) obj);
+        }
+
+        public static bool operator ==(Image left, Image right) {
+            return Equals(left, right);
+        }
+        
+        public static bool operator !=(Image left, Image right) {
+            return !Equals(left, right);
+        }
+
+        public override int GetHashCode() {
+            unchecked {
+                var hashCode = (width != null ? width.GetHashCode() : 0);
+                hashCode = (hashCode * 397) ^(height != null ? height.GetHashCode() : 0);
+                hashCode = (hashCode * 397) ^ (_ptr != null ? _ptr.GetHashCode() : 0);
+                return hashCode;
+            }
+        }
     }
 
     /*

com.unity.uiwidgets/Runtime/widgets/app.cs

             supportedLocales = supportedLocales ?? new List<Locale> {new Locale("en", "US")};
             window = Window.instance;
             D.assert(routes != null);
+            D.assert(color != null);
+            D.assert(supportedLocales != null && supportedLocales.isNotEmpty());
             this.home = home;
             this.navigatorKey = navigatorKey;
             this.onGenerateRoute = onGenerateRoute;
         }
     }
 
-    public class WindowProvider : InheritedWidget {
-        public readonly Window window;
-
-        public WindowProvider(Key key = null, Window window = null, Widget child = null) :
-            base(key, child) {
-            D.assert(window != null);
-            this.window = window;
-        }
-
-        public static Window of(BuildContext context) {
-            var provider = (WindowProvider) context.inheritFromWidgetOfExactType(typeof(WindowProvider));
-            if (provider == null) {
-                throw new UIWidgetsError("WindowProvider is missing");
-            }
-
-            return provider.window;
-        }
-
-        public static Window of(GameObject gameObject) {
-            D.assert(false, () => "window.Of is not implemented yet!");
-            return null;
-            
-            /*
-            var panel = gameObject.GetComponent<UIWidgetsPanel>();
-            return panel == null ? null : panel.window;
-            */
-        }
-
-        public override bool updateShouldNotify(InheritedWidget oldWidget) {
-            D.assert(window == ((WindowProvider) oldWidget).window);
-            return false;
-        }
-    }
-
+    
     class _WidgetsAppState : State<WidgetsApp>, WidgetsBindingObserver {
         public void didChangeMetrics() {
             setState();
         public override void initState() {
             base.initState();
             _updateNavigator();
-
-            //todo: xingwei.zhu: change the default locale to ui.Window.locale
-
-            /*D.assert(() => {
-                WidgetInspectorService.instance.inspectorShowCallback += inspectorShowChanged;
-                return true;
-            });*/
-
             WidgetsBinding.instance.addObserver(this);
         }
 
         public override void dispose() {
             WidgetsBinding.instance.removeObserver(this);
 
-            /*D.assert(() => {
-                WidgetInspectorService.instance.inspectorShowCallback -= inspectorShowChanged;
-                return true;
-            });*/
             base.dispose();
         }
 
         }
         
 
-        /*bool _debugCheckLocalizations(Locale appLocale) {
+        bool _debugCheckLocalizations(Locale appLocale) {
-                foreach ( LocalizationsDelegate<dynamic> _delegate in _localizationsDelegates) {
+                foreach ( LocalizationsDelegate _delegate in _localizationsDelegates) {
                     if (!unsupportedTypes.Contains(_delegate.type))
                         continue;
                     if (_delegate.isSupported(appLocale))
                 if (unsupportedTypesList.SequenceEqual(list))
                     return true;
 
-                StringBuffer message = new StringBuffer();
-                message.writeln('\u2550' * 8);
-                message.writeln(
+                StringBuilder message = new StringBuilder();
+                message.Append('\u2550' * 8);
+                message.Append(
-                    // Currently the Cupertino library only provides english localizations.
-                    // Remove this when https://github.com/flutter/flutter/issues/23847
-                    // is fixed.
+                   
-                    message.writeln(
+                    message.Append(
-                message.writeln(
+                message.Append(
-                message.writeln('\u2550' * 8);
-                //Debug.Log(message.toString());
+                message.Append('\u2550' * 8);
+            
-        }*/
+        }
 
         public override Widget build(BuildContext context) {
             Widget navigator = null;
                     key: _navigator,
-                    initialRoute: widget.initialRoute ?? Navigator.defaultRouteName,
-                    /*WidgetsBinding.instance.window.defaultRouteName != Navigator.defaultRouteName
+                    initialRoute: 
+                    WidgetsBinding.instance.window.defaultRouteName != Navigator.defaultRouteName
-                        : widget.initialRoute ?? WidgetsBinding.instance.window.defaultRouteName,*/
+                        : widget.initialRoute ?? WidgetsBinding.instance.window.defaultRouteName,
                     onGenerateRoute: _onGenerateRoute,
                     onGenerateInitialRoutes: widget.onGenerateInitialRoutes == null
                         ? Navigator.defaultGenerateInitialRoutes
             }
 
             PerformanceOverlay performanceOverlay = null;
-            if (widget.showPerformanceOverlay) {
-                performanceOverlay = PerformanceOverlay.allEnabled();
-            }
-            /*if (widget.showPerformanceOverlay || WidgetsApp.showPerformanceOverlayOverride) {
+           
+            if (widget.showPerformanceOverlay || WidgetsApp.showPerformanceOverlayOverride) {
                 performanceOverlay = PerformanceOverlay.allEnabled(
                     checkerboardRasterCacheImages: widget.checkerboardRasterCacheImages,
                     checkerboardOffscreenLayers: widget.checkerboardOffscreenLayers
                     checkerboardRasterCacheImages: widget.checkerboardRasterCacheImages,
                     checkerboardOffscreenLayers: widget.checkerboardOffscreenLayers
                 );
-            }*/
+            }
 
             if (performanceOverlay != null) {
                 result = new Stack(
                     });
             }
 
-            /*if (widget.showSemanticsDebugger) {
-                result = SemanticsDebugger(
-                    child: result,
-                );
-            }*/
             D.assert(() => {
                 if (widget.debugShowWidgetInspector || WidgetsApp.debugShowWidgetInspectorOverride) {
                     result = new WidgetInspector(
                     );
                 }
                 return true;
-
-                /*if (widget.debugShowWidgetInspector || WidgetsApp.debugShowWidgetInspectorOverride) {
-                    result = new WidgetInspector(
-                        child: result,
-                        selectButtonBuilder: widget.inspectorSelectButtonBuilder
-                    );
-                }
-                if (widget.debugShowCheckedModeBanner && WidgetsApp.debugAllowBannerOverride) {
-                    result = new CheckedModeBanner(
-                        child: result
-                    );
-                }*/
-                return true;
-            result = new Directionality(child: result, TextDirection.ltr);
-            result = new WindowProvider(
-                window: widget.window,
-                child: result
-            );
-            /*Widget title = null;
+            Widget title = null;
             if (widget.onGenerateTitle != null) {
                 title = new Builder(
                     builder: (BuildContext context1)=> {
                     color: widget.color,
                     child: result
                 );
-            }*/
+            }
-            //D.assert(_debugCheckLocalizations(appLocale));
-            result = new MediaQuery(
-                data: MediaQueryData.fromWindow(widget.window),
-                child: new Localizations(
-                    locale: appLocale,
-                    delegates: _localizationsDelegates,
-                    child: result)
-            );
-            /////todo
-            /// 
-            /*result = new Shortcuts(
+            D.assert(_debugCheckLocalizations(appLocale));
+            
+            result = new Shortcuts(
-                    child: FocusTraversalGroup(
-                        policy: ReadingOrderTraversalPolicy(),
-                        child: _MediaQueryFromWindow(
+                    child: new FocusTraversalGroup(
+                        policy: new ReadingOrderTraversalPolicy(),
+                        child: new _MediaQueryFromWindow(
-                                delegates: _localizationsDelegates,
+                                delegates: _localizationsDelegates.ToList(),
-            );*/
+            );
 
             return result;
         }

com.unity.uiwidgets/Runtime/widgets/editable_text.cs

 using Unity.UIWidgets.async2;
 using Unity.UIWidgets.foundation;
 using Unity.UIWidgets.gestures;
-//using Unity.UIWidgets.material;
+using Unity.UIWidgets.material;
 using Unity.UIWidgets.painting;
 using Unity.UIWidgets.rendering;
 using Unity.UIWidgets.scheduler2;
             if (textChanged && widget.onChanged != null)
                 widget.onChanged(value.text);
             _lastFormattedUnmodifiedTextEditingValue = _receivedRemoteTextEditingValue;
-            /*
-            var textChanged = _value?.text != value?.text || isIMEInput;
-            if (textChanged && widget.inputFormatters != null && widget.inputFormatters.isNotEmpty()) {
-                foreach (var formatter in widget.inputFormatters) {
-                    value = formatter.formatEditUpdate(_value, value);
-                }
-
-                _value = value;
-                _updateRemoteEditingValueIfNeeded();
-                //_updateImePosIfNeed();
-            }
-            else {
-                _value = value;
-            }
-
-            if (textChanged && widget.onChanged != null) {
-                widget.onChanged(value.text);
-            }*/
+            
         }
 
         void _onCursorColorTick() {
         public readonly TextSelectionDelegate textSelectionDelegate;
         public readonly bool? paintCursorAboveText;
         public readonly float? devicePixelRatio;
-        //public readonly GlobalKeyEventHandlerDelegate globalKeyEventHandler;
         public readonly Locale locale;
         public _Editable(
             Key key = null,
             bool enableInteractiveSelection = true,
             TextSelectionDelegate textSelectionDelegate = null,
             float? devicePixelRatio = null
-            //GlobalKeyEventHandlerDelegate globalKeyEventHandler = null
-            ) : base(key) {
+        ) : base(key) {
             this.textSpan = textSpan;
             this.value = value;
             this.startHandleLayerLink = startHandleLayerLink;
             this.selectionWidthStyle = selectionWidthStyle;
             this.enableInteractiveSelection = enableInteractiveSelection;
             this.devicePixelRatio = devicePixelRatio;
-            //this.globalKeyEventHandler = globalKeyEventHandler;
         }
 
         public override RenderObject createRenderObject(BuildContext context) {

com.unity.uiwidgets/Runtime/widgets/focus_manager.cs

 
         public void _setAsFocusedChildForScope() {
             FocusNode scopeFocus = this;
-            foreach (FocusScopeNode ancestor in ancestors) {
+            foreach ( var ancestor in ancestors) {
-                    ancestor._focusedChildren.Remove(scopeFocus);
+                    ((FocusScopeNode)ancestor)._focusedChildren.Remove(scopeFocus);
-                    ancestor._focusedChildren.Add(scopeFocus);
+                    ((FocusScopeNode)ancestor)._focusedChildren.Add(scopeFocus);
                     scopeFocus = ancestor;
                 }
             }

com.unity.uiwidgets/Runtime/widgets/focus_traversal.cs

         public static void insertionSort<T>(List<T> list,
             Comparator<T> compare = null, int start = 0, int end =0) {
             
-            //compare ??= defaultCompare<T>();
+            //compare = compare == null ?  defaultCompare<T>();
             end = end == 0 ?list.Count : end;
 
             for (int pos = start + 1; pos < end; pos++) {
     
 
     public interface DirectionalFocusTraversalPolicyMixin {
-
-        //Dictionary<FocusScopeNode, _DirectionalPolicyData> _policyData = new Dictionary<FocusScopeNode, _DirectionalPolicyData>();
         void invalidateScopeData(FocusScopeNode node);
         void changedScope(FocusNode node = null, FocusScopeNode oldScope = null);
         FocusNode findFirstFocusInDirection(FocusNode currentNode, TraversalDirection direction);

com.unity.uiwidgets/Runtime/widgets/framework.cs

             }
         }
 
-        void reassemble(Element root) {
+        public void reassemble(Element root) {
             try {
                 D.assert(root._parent == null);
                 D.assert(root.owner == this);

com.unity.uiwidgets/Runtime/widgets/image.cs

         }
 
         void _resolveImage() {
-            /*ScrollAwareImageProvider<object> provider = new ScrollAwareImageProvider<object>(
+            ScrollAwareImageProvider<object> provider = new ScrollAwareImageProvider<object>(
-            );*/
+            );
-                widget.image.resolve(ImageUtils.createLocalImageConfiguration(
+                provider.resolve(ImageUtils.createLocalImageConfiguration(
                     context,
                     size: widget.width != null && widget.height != null
                         ? new Size(widget.width.Value, widget.height.Value)
             base.debugFillProperties(description);
             description.add(new DiagnosticsProperty<ImageStream>("stream", _imageStream));
             description.add(new DiagnosticsProperty<ImageInfo>("pixels", _imageInfo));
-            //description.add(new DiagnosticsProperty<ImageChunkEvent>("loadingProgress", _loadingProgress));
+            description.add(new DiagnosticsProperty<ImageChunkEvent>("loadingProgress", _loadingProgress));
             description.add(new DiagnosticsProperty<int>("frameNumber", _frameNumber));
             description.add(new DiagnosticsProperty<bool>("wasSynchronouslyLoaded", _wasSynchronouslyLoaded));
         }

com.unity.uiwidgets/Runtime/widgets/localizations.cs

     }
 
     public abstract class LocalizationsDelegate<T> : LocalizationsDelegate {
-        //public abstract Future<T> load(Locale locale);
         public override Type type {
             get { return typeof(T); }
         }

com.unity.uiwidgets/Runtime/widgets/navigator.cs

 using Unity.UIWidgets.gestures;
 using Unity.UIWidgets.rendering;
 using Unity.UIWidgets.scheduler2;
+using Unity.UIWidgets.services;
 using SchedulerBinding = Unity.UIWidgets.scheduler2.SchedulerBinding;
 using SchedulerPhase = Unity.UIWidgets.scheduler2.SchedulerPhase;
 
     public delegate Route<T> RouteBuilder<T>(BuildContext context, RouteSettings settings);
 
     public delegate List<Route> RouteListFactory(NavigatorState navigator, string initialRoute);
-
-    //public delegate bool RoutePredicate(Route route);
 
     public delegate bool RoutePredicate(Route route);
 
         
 
         public virtual Future<RoutePopDisposition> willPop() {
-            /// async
             return Future.value(isFirst
                 ? RoutePopDisposition.bubble
                 : RoutePopDisposition.pop).to<RoutePopDisposition>();
                 _RouteEntry routeEntry = null;
                 foreach (var historyEntry in _navigator._history) {
                      if (_RouteEntry.isRoutePredicate(this)(historyEntry)) {
-                         //Route
                          routeEntry = historyEntry;
                          break;
                      }
             get { return _overlayKey.currentState; }
         }
 
-        public List<OverlayEntry> _allRouteOverlayEntries { ///sync 
+        public List<OverlayEntry> _allRouteOverlayEntries { 
-                    //yield* entry.route.overlayEntries;
-                    /*foreach (var historyOverlayEntry in historyEntry.route.overlayEntries) {
-                        yield return historyOverlayEntry;
-                    }*/
-                    
                 }
                 return overlayEntries;
             }
 
                     string description;
                     if (route is TransitionRoute ){
-                        //TransitionRoute transitionRoute = route;
                         description = ((TransitionRoute)route).debugLabel;
                     }
                     else {
                     Dictionary<string, object> settingsJsonable = new Dictionary<string, object> {
                         {"name", settings.name}
                     };
-                    /*if (settings.arguments != null) {
-                        settingsJsonable["arguments"] = jsonEncode(
-                            settings.arguments,
-                            toEncodable: (object _object) => $"{_object}"
-                        );
-                    }*/
+                    if (settings.arguments != null) {
+                        settingsJsonable["arguments"] = JSONMessageCodec.instance.toJson(
+                            settings.arguments);
+                    }
-                // todo
                 developer.developer_.postEvent("Flutter.Navigation", new Hashtable{
                     {"route", routeJsonable}
                 });
                 }
             }
             D.assert(anyEntry,()=> "Navigator has no active routes to replace.");
-            //_history.lastWhere(_RouteEntry.isPresentPredicate).complete(result, isReplaced: true);
             _RouteEntry lastEntry = null;
             foreach (var historyEntry in _history) {
                 if (_RouteEntry.isPresentPredicate(historyEntry)) {
 
             D.assert(index >= 0, () => "There are no routes below the specified anchorRoute.");
             _history.Insert(index + 1, new _RouteEntry(newRoute, initialState: _RouteLifecycle.replace));
-            //_history[index].remove(isReplaced: true);
+           
             _history.RemoveAt(index);
             _flushHistoryUpdates();
             D.assert(() => {
         }
 
         public bool canPop() {
-            IEnumerable<_RouteEntry> iterator = new List<_RouteEntry>();//_history.where(_RouteEntry.isPresentPredicate).iterator;
+            IEnumerable<_RouteEntry> iterator = new List<_RouteEntry>();
+            
             foreach (var historyEntry in _history) {
                 if (_RouteEntry.isPresentPredicate(historyEntry)) {
                     iterator.Append(historyEntry);
                 return true;
             });
 
-            _RouteEntry entry = null; //_history.lastWhere(_RouteEntry.isPresentPredicate);
+            _RouteEntry entry = null; 
             foreach (_RouteEntry route in _history) {
                 if (_RouteEntry.isPresentPredicate(route)) {
                     entry = route;
             });
             D.assert(route._navigator == this);
             bool wasCurrent = route.isCurrent;
-            _RouteEntry entry = null; //_history.firstWhere(_RouteEntry.isRoutePredicate(route), orElse: () => null);
+            _RouteEntry entry = null; 
             foreach (_RouteEntry routeEntry in _history) {
                 if (_RouteEntry.isRoutePredicate(route)(routeEntry)) {
                     entry = routeEntry;
 
                 RenderAbsorbPointer absorber =
                     _overlayKey.currentContext?.findAncestorRenderObjectOfType<RenderAbsorbPointer>();
-                setState(() => { absorber.absorbing = true; });//absorber?.
+                setState(() => {
+                    if(absorber != null)
+                        absorber.absorbing = true;
+                });
             }
 
             _activePointers.ToList().ForEach(WidgetsBinding.instance.cancelPointer);
         public override Widget build(BuildContext context) {
-            D.assert(!_debugLocked);//_debuglocked = false;
+            D.assert(!_debugLocked);
             D.assert(_history.isNotEmpty());
             return new Listener(
                 onPointerDown: _handlePointerDown,

com.unity.uiwidgets/Runtime/widgets/routes.cs

             D.assert(!_transitionCompleter.isCompleted, () => $"Cannot reuse a {GetType()} after disposing it.");
             _didPushOrReplace();
             base.didAdd();
-            _controller.setValue(_controller.upperBound); //_controller.upperBound;
+            _controller.setValue(_controller.upperBound); 
         }
         protected internal override void didReplace(Route oldRoute) {
             D.assert(_controller != null,
             entry._owner = null;
             entry._notifyRemoved();
             if (_localHistory.isEmpty()) {
-                //changedInternalState();
                 if (SchedulerBinding.instance.schedulerPhase == SchedulerPhase.persistentCallbacks) {
                     SchedulerBinding.instance.addPostFrameCallback((TimeSpan timestamp) =>{
                         changedInternalState();
                                                 animation: widget.route.navigator?.userGestureInProgressNotifier ?? new ValueNotifier<bool>(false),
                                                 builder: (BuildContext context1, Widget child1) =>{
                                                     bool ignoreEvents = _shouldIgnoreFocusRequest;
-                                                    focusScopeNode.canRequestFocus = !ignoreEvents; // todo
+                                                    focusScopeNode.canRequestFocus = !ignoreEvents; 
                                                     return new IgnorePointer(
                                                         ignoring: ignoreEvents,
                                                         child: child1
         }
         public virtual bool maintainState { get; }
 
-        public bool offstage {
+        public virtual bool offstage {
             get { return _offstage; }
             set {
                 if (_offstage == value) {
                     animation.drive(new ColorTween(
                         begin: _kTransparent,
                         end: barrierColor // changedInternalState is called if this updates
-                    ).chain(new CurveTween(curve: barrierCurve)));//.animate(animation);
+                    ).chain(new CurveTween(curve: barrierCurve)));
-                    //,semanticsLabel: barrierLabel, // changedInternalState is called if barrierLabel updates
-                    //barrierSemanticsDismissible: semanticsDismissible
+                   
-                //semanticsLabel: barrierLabel, // changedInternalState is called if barrierLabel updates
-                //barrierSemanticsDismissible: semanticsDismissible,
+               
                 );
             }
             if (_filter != null) {
             BuildContext context,
             Animation<float> animation,
             Animation<float> secondaryAnimation) {
-            //TODO SEMANTICS
+            
             return _pageBuilder(context, animation, secondaryAnimation);
         }
 

com.unity.uiwidgets/Runtime/widgets/sliver.cs

         RenderBox _currentBeforeChild;
 
         protected override void performRebuild() {
-            //_didUnderflow = false;
             _childWidgets.Clear();
             base.performRebuild();
             _currentBeforeChild = null;
                     _currentlyUpdatingChildIndex = index;
                     if(_childElements.getOrDefault(index) != null && 
                        _childElements.getOrDefault(index) != newChildren.getOrDefault(index))
-                   // if (_childElements[index] != null && _childElements[index] != newChildren[index])
                     {
                         _childElements[index] = updateChild(_childElements[index], null, index);
                     }
             }
             return newChild;
             
-            /*SliverMultiBoxAdaptorParentData oldParentData = null;
-            if (child != null && child.renderObject != null) {
-                oldParentData = (SliverMultiBoxAdaptorParentData) child.renderObject.parentData;
-            }
-
-            Element newChild = base.updateChild(child, newWidget, newSlot);
-
-            SliverMultiBoxAdaptorParentData newParentData = null;
-            if (newChild != null && newChild.renderObject != null) {
-                newParentData = (SliverMultiBoxAdaptorParentData) newChild.renderObject.parentData;
-            }
-
-            if (oldParentData != newParentData && oldParentData != null && newParentData != null) {
-                newParentData.layoutOffset = oldParentData.layoutOffset;
-            }
-
-            return newChild;*/
         }
 
         internal override void forgetChild(Element child) {
             }).ToList().ForEach(e => visitor(e));
         }
     }
-
-    /*public class SliverFillRemaining : SingleChildRenderObjectWidget {
-        public SliverFillRemaining(
-            Key key = null,
-            Widget child = null
-        ) : base(key: key, child: child) {
-        }
-
-        public override RenderObject createRenderObject(BuildContext context) {
-            return new RenderSliverFillRemaining();
-        }
-    }*/
 
     public class KeepAlive : ParentDataWidget<IKeepAliveParentDataMixin> {
         public KeepAlive(

com.unity.uiwidgets/Runtime/widgets/text.cs

             
         ) : base(key: key, child: child) {
             D.assert(style != null);
-            D.assert(softWrap != null);
-            D.assert(overflow != null);
-            D.assert(textWidthBasis != null);
+            
             this.style = style;
             this.textAlign = textAlign;
             this.softWrap = softWrap;
         public static DefaultTextStyle of(BuildContext context) {
             return context.dependOnInheritedWidgetOfExactType<DefaultTextStyle>() ?? new DefaultTextStyle();
         }
-        public override bool updateShouldNotify(InheritedWidget oldWidget) {
-            //InheritedWidget
-            //DefaultTextStyle
-            oldWidget = (DefaultTextStyle) oldWidget;
-           
-            return style !=  ((DefaultTextStyle)oldWidget).style ||
-                textAlign !=  ((DefaultTextStyle)oldWidget).textAlign ||
-                softWrap !=  ((DefaultTextStyle)oldWidget).softWrap ||
-                overflow !=  ((DefaultTextStyle)oldWidget).overflow ||
-                maxLines !=  ((DefaultTextStyle)oldWidget).maxLines ||
-                textWidthBasis !=  ((DefaultTextStyle)oldWidget).textWidthBasis ||
-                textHeightBehavior !=  ((DefaultTextStyle)oldWidget).textHeightBehavior;
+        public override bool updateShouldNotify(InheritedWidget oldWidget) { 
+            DefaultTextStyle _oldWidget = (DefaultTextStyle) oldWidget;
+            return style !=  _oldWidget.style ||
+                   textAlign != _oldWidget.textAlign ||
+                   softWrap != _oldWidget.softWrap ||
+                   overflow != _oldWidget.overflow ||
+                   maxLines != _oldWidget.maxLines ||
+                   textWidthBasis != _oldWidget.textWidthBasis ||
+                   textHeightBehavior != _oldWidget.textHeightBehavior;
         }
         public override Widget wrap(BuildContext context, Widget child) {
     
 
         
     }
-
-    /*public class DefaultTextStyle : InheritedWidget {
-        public DefaultTextStyle(
-            Key key = null,
-            TextStyle style = null,
-            TextAlign? textAlign = null,
-            bool softWrap = true,
-            TextOverflow overflow = TextOverflow.clip,
-            int? maxLines = null,
-            Widget child = null
-        ) : base(key, child) {
-            D.assert(style != null);
-            D.assert(maxLines == null || maxLines > 0);
-            D.assert(child != null);
-
-            this.style = style;
-            this.textAlign = textAlign;
-            this.softWrap = softWrap;
-            this.overflow = overflow;
-            this.maxLines = maxLines;
-        }
-
-        DefaultTextStyle() {
-            style = new TextStyle();
-            textAlign = null;
-            softWrap = true;
-            overflow = TextOverflow.clip;
-            maxLines = null;
-        }
-
-        public static DefaultTextStyle fallback() {
-            return _fallback;
-        }
-
-        static readonly DefaultTextStyle _fallback = new DefaultTextStyle();
-
-        public static Widget merge(
-            Key key = null,
-            TextStyle style = null,
-            TextAlign? textAlign = null,
-            bool? softWrap = null,
-            TextOverflow? overflow = null,
-            int? maxLines = null,
-            Widget child = null
-        ) {
-            D.assert(child != null);
-            return new Builder(builder: (context => {
-                var parent = of(context);
-                return new DefaultTextStyle(
-                    key: key,
-                    style: parent.style.merge(style),
-                    textAlign: textAlign ?? parent.textAlign,
-                    softWrap: softWrap ?? parent.softWrap,
-                    overflow: overflow ?? parent.overflow,
-                    maxLines: maxLines ?? parent.maxLines,
-                    child: child
-                );
-            }));
-        }
-
-        public readonly TextStyle style;
-        public readonly TextAlign? textAlign;
-        public readonly bool softWrap;
-        public readonly TextOverflow overflow;
-        public readonly int? maxLines;
-
-        public static DefaultTextStyle of(BuildContext context) {
-            var inherit = (DefaultTextStyle) context.inheritFromWidgetOfExactType(typeof(DefaultTextStyle));
-            return inherit ?? fallback();
-        }
-
-        public override bool updateShouldNotify(InheritedWidget w) {
-            var oldWidget = (DefaultTextStyle) w;
-            return style != oldWidget.style ||
-                   textAlign != oldWidget.textAlign ||
-                   softWrap != oldWidget.softWrap ||
-                   overflow != oldWidget.overflow ||
-                   maxLines != oldWidget.maxLines;
-        }
-
-        public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
-            base.debugFillProperties(properties);
-            if (style != null) {
-                style.debugFillProperties(properties);
-            }
-
-            properties.add(new EnumProperty<TextAlign?>("textAlign", textAlign,
-                defaultValue: foundation_.kNullDefaultValue));
-            properties.add(new FlagProperty("softWrap", value: softWrap, ifTrue: "wrapping at box width",
-                ifFalse: "no wrapping except at line break characters", showName: true));
-            properties.add(new EnumProperty<TextOverflow>("overflow", overflow,
-                defaultValue: foundation_.kNullDefaultValue));
-            properties.add(new IntProperty("maxLines", maxLines,
-                defaultValue: foundation_.kNullDefaultValue));
-        }
-    }*/
 
     public class Text : StatelessWidget {
         public Text(string data,

com.unity.uiwidgets/Runtime/widgets/text_selection.cs

             );
         }
     }
-    /*public abstract class TextSelectionGestureDetectorBuilderDelegate {
-        public GlobalKey<EditableTextState> editableTextKey { get; }
-        public bool forcePressEnabled {
-            get;
-        }
-        public bool selectionEnabled { get; }
-    }*/
-    
     public interface TextSelectionGestureDetectorBuilderDelegate {
 
         GlobalKey<EditableTextState> editableTextKey { get; }

com.unity.uiwidgets/Runtime/widgets/texture.cs

 
 namespace Unity.UIWidgets.widgets {
     public class Texture : LeafRenderObjectWidget {
-        // TODO: check whether following is needed 
-        // public static void textureFrameAvailable(Window instance = null) {
-        //     if (instance == null) {
-        //         WindowAdapter.windowAdapters.ForEach(w => w.scheduleFrame(false));
-        //     } else {
-        //         instance.scheduleFrame(false);
-        //     }
-        // }
-
         public Texture( 
             Key key = null, 
             int? textureId = null) : base(key: key) {

engine/src/lib/ui/window/window.cc

   const std::string routeName = ptr->client()->DefaultRouteName();
   size_t size = routeName.length() + 1;
   char* result = static_cast<char*>(malloc(size));
-  routeName.copy(result, size);
+  strcpy(result, routeName.c_str());
   return result;
 }