mirror of https://github.com/flutter/samples.git
John Ryan
5 years ago
parent
ef0114c210
commit
3f1e2877b8
@ -0,0 +1,21 @@
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import 'dart:math' show Point;
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enum PuzzleEvent { click, random, reset, noop }
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abstract class PuzzleProxy {
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int get width;
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int get height;
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int get length;
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bool get solved;
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void clickOrShake(int tileValue);
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int get tileCount;
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Point<double> location(int index);
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bool isCorrectPosition(int value);
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}
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@ -0,0 +1,2 @@
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export 'package:flutter/material.dart';
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export 'package:flutter/scheduler.dart' show Ticker;
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@ -0,0 +1,13 @@
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import 'package:flutter/foundation.dart';
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abstract class PuzzleControls implements Listenable {
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void reset();
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int get clickCount;
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int get incorrectTiles;
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bool get autoPlay;
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void Function(bool newValue) get setAutoPlayFunction;
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}
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@ -0,0 +1,9 @@
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import 'theme_plaster.dart';
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import 'theme_seattle.dart';
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import 'theme_simple.dart';
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const themes = [
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ThemeSimple(),
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ThemeSeattle(),
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ThemePlaster(),
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];
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@ -0,0 +1,88 @@
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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class ValueTabController<T> extends StatefulWidget {
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/// Creates a default tab controller for the given [child] widget.
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const ValueTabController({
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Key key,
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@required this.child,
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@required this.values,
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}) : super(key: key);
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/// The widget below this widget in the tree.
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///
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/// Typically a [Scaffold] whose [AppBar] includes a [TabBar].
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///
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/// {@macro flutter.widgets.child}
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final Widget child;
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final List<T> values;
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/// The closest instance of this class that encloses the given context.
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///
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/// Typical usage:
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///
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/// ```dart
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/// TabController controller = DefaultTabBarController.of(context);
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/// ```
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static TabController of(BuildContext context) {
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final scope = context.inheritFromWidgetOfExactType(_ValueTabControllerScope)
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as _ValueTabControllerScope;
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return scope?.controller;
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}
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@override
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_ValueTabControllerState<T> createState() => _ValueTabControllerState<T>();
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}
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class _ValueTabControllerState<T> extends State<ValueTabController<T>>
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with SingleTickerProviderStateMixin {
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final _notifier = ValueNotifier<T>(null);
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TabController _controller;
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@override
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void initState() {
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super.initState();
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_controller = TabController(
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vsync: this,
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length: widget.values.length,
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initialIndex: 0,
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);
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_notifier.value = widget.values.first;
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_controller.addListener(() {
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_notifier.value = widget.values[_controller.index];
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});
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) => _ValueTabControllerScope(
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controller: _controller,
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enabled: TickerMode.of(context),
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child: ValueListenableProvider.value(
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valueListenable: _notifier,
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child: widget.child,
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),
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);
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}
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class _ValueTabControllerScope extends InheritedWidget {
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const _ValueTabControllerScope(
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{Key key, this.controller, this.enabled, Widget child})
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: super(key: key, child: child);
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final TabController controller;
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final bool enabled;
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@override
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bool updateShouldNotify(_ValueTabControllerScope old) =>
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enabled != old.enabled || controller != old.controller;
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}
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