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113 行
4.1 KiB

using System;
using System.Collections.Generic;
using Unity.UIWidgets.foundation;
using Unity.UIWidgets.gestures;
using Unity.UIWidgets.painting;
using Unity.UIWidgets.Redux;
using Unity.UIWidgets.ui;
using Unity.UIWidgets.widgets;
using TextStyle = Unity.UIWidgets.painting.TextStyle;
namespace Unity.UIWidgets.Sample.Redux {
public class CounterAppSample : UIWidgetsSample.UIWidgetsSamplePanel {
protected override Widget createWidget() {
return new WidgetsApp(
home: new CounterApp(),
pageRouteBuilder: this.pageRouteBuilder);
}
}
[Serializable]
public class CouterState {
public int count;
public CouterState(int count = 0) {
this.count = count;
}
}
[Serializable]
public class CounterIncAction {
public int amount;
}
public class CounterApp : StatelessWidget {
public override Widget build(BuildContext context) {
var store = new Store<CouterState>(reduce, new CouterState(),
ReduxLogging.create<CouterState>());
return new StoreProvider<CouterState>(store, this.createWidget());
}
public static CouterState reduce(CouterState state, object action) {
var inc = action as CounterIncAction;
if (inc == null) {
return state;
}
return new CouterState(inc.amount + state.count);
}
Widget createWidget() {
return new Container(
height: 200.0f,
padding: EdgeInsets.all(10),
decoration: new BoxDecoration(
color: new Color(0xFF7F7F7F),
border: Border.all(color: Color.fromARGB(255, 255, 0, 0), width: 5),
borderRadius: BorderRadius.all(2)),
child: new Column(
children: new List<Widget>() {
new StoreConnector<CouterState, string>(
converter: (state) => $"Count:{state.count}",
builder: (context, countText, dispatcher) => new Text(countText, style: new TextStyle(
fontSize: 20, fontWeight: FontWeight.w700
)),
pure: true
),
new StoreConnector<CouterState, object>(
converter: (state) => null,
builder: (context, _, dispatcher) => new CustomButton(
backgroundColor: Color.fromARGB(255, 0, 204, 204),
padding: EdgeInsets.all(10),
child: new Text("Add", style: new TextStyle(
fontSize: 16, color: Color.fromARGB(255, 255, 255, 255)
)), onPressed: () => { dispatcher.dispatch(new CounterIncAction() {amount = 1}); }),
pure: true
),
}
)
);
}
}
public class CustomButton : StatelessWidget {
public CustomButton(
Key key = null,
GestureTapCallback onPressed = null,
EdgeInsets padding = null,
Color backgroundColor = null,
Widget child = null
) : base(key: key) {
this.onPressed = onPressed;
this.padding = padding ?? EdgeInsets.all(8.0f);
this.backgroundColor = backgroundColor;
this.child = child;
}
public readonly GestureTapCallback onPressed;
public readonly EdgeInsets padding;
public readonly Widget child;
public readonly Color backgroundColor;
public override Widget build(BuildContext context) {
return new GestureDetector(
onTap: this.onPressed,
child: new Container(
padding: this.padding,
decoration: new BoxDecoration(color: this.backgroundColor),
child: this.child
)
);
}
}
}