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fix count down column

/zgh-devtools
Shiyun Wen 4 年前
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ed63d82d
共有 2 个文件被更改，包括 257 次插入 和 245 次删除
  1. 48
      Samples/UIWidgetsSamples_2019_4/Assets/UIWidgetsGallery/demo/cupertino/cupertino_picker_demo.cs
  2. 454
      com.unity.uiwidgets/Runtime/cupertino/date_picker.cs

48
Samples/UIWidgetsSamples_2019_4/Assets/UIWidgetsGallery/demo/cupertino/cupertino_picker_demo.cs
查看文件


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 {

);
}
}
}

454
com.unity.uiwidgets/Runtime/cupertino/date_picker.cs
查看文件


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);
}
Widget _buildMinuteColumn(EdgeInsetsDirectional additionalPadding) {
return _buildPickerNumberLabel(localizations.timerPickerMinute(minute), 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()
)
)
)
}
}
}
}
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