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9cef3e61e9
Also, introduce Colors and Typography to hold the material colors and the typography declarations. Previously we expected clients of these libraries to import them into a namespace, but that doesn't play nice with re-exporting them from material.dart.
111 lines
3.1 KiB
Dart
111 lines
3.1 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:sky/animation.dart';
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import 'package:sky/material.dart';
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import 'package:sky/widgets.dart';
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class ProgressIndicatorApp extends App {
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ValueAnimation<double> valueAnimation;
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Direction valueAnimationDirection = Direction.forward;
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void initState() {
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super.initState();
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valueAnimation = new ValueAnimation<double>()
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..duration = const Duration(milliseconds: 1500)
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..variable = new AnimatedValue<double>(
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0.0,
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end: 1.0,
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curve: ease,
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reverseCurve: ease,
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interval: new Interval(0.0, 0.9)
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);
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}
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void handleTap() {
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if (valueAnimation.isAnimating)
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valueAnimation.stop();
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else
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valueAnimation.resume();
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}
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void reverseValueAnimationDirection() {
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setState(() {
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valueAnimationDirection = (valueAnimationDirection == Direction.forward)
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? Direction.reverse
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: Direction.forward;
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});
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}
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Widget buildIndicators() {
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List<Widget> indicators = <Widget>[
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new SizedBox(
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width: 200.0,
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child: new LinearProgressIndicator()
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),
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new LinearProgressIndicator(),
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new LinearProgressIndicator(),
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new LinearProgressIndicator(value: valueAnimation.value),
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new CircularProgressIndicator(),
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new SizedBox(
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width: 20.0,
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height: 20.0,
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child: new CircularProgressIndicator(value: valueAnimation.value)
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),
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new SizedBox(
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width: 50.0,
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height: 30.0,
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child: new CircularProgressIndicator(value: valueAnimation.value)
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)
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];
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return new Column(
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indicators
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.map((c) => new Container(child: c, margin: const EdgeDims.symmetric(vertical: 20.0)))
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.toList(),
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justifyContent: FlexJustifyContent.center
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);
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}
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Widget build() {
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Widget body = new GestureDetector(
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onTap: handleTap,
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child: new Container(
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padding: const EdgeDims.symmetric(vertical: 12.0, horizontal: 8.0),
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decoration: new BoxDecoration(backgroundColor: Theme.of(this).cardColor),
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child: new BuilderTransition(
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variables: [valueAnimation.variable],
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direction: valueAnimationDirection,
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performance: valueAnimation,
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onDismissed: reverseValueAnimationDirection,
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onCompleted: reverseValueAnimationDirection,
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builder: buildIndicators
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)
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)
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);
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return new IconTheme(
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data: const IconThemeData(color: IconThemeColor.white),
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child: new Theme(
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data: new ThemeData(
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brightness: ThemeBrightness.light,
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primarySwatch: Colors.blue,
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accentColor: Colors.redAccent[200]
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),
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child: new Title(
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title: 'Cards',
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child: new Scaffold(
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toolbar: new ToolBar(center: new Text('Progress Indicators')),
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body: body
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)
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)
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)
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);
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}
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}
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void main() {
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runApp(new ProgressIndicatorApp());
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}
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