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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| import 'package:easy_refresh/easy_refresh.dart'; | ||
| import 'package:example/widget/skeleton_item.dart'; | ||
| import 'package:flutter/cupertino.dart'; | ||
| import 'package:flutter/material.dart'; | ||
|
|
||
| class CupertinoIndicatorPage extends StatefulWidget { | ||
| const CupertinoIndicatorPage({Key? key}) : super(key: key); | ||
|
|
||
| @override | ||
| State<CupertinoIndicatorPage> createState() => _CupertinoIndicatorPageState(); | ||
| } | ||
|
|
||
| class _CupertinoIndicatorPageState extends State<CupertinoIndicatorPage> { | ||
| int _count = 10; | ||
| late EasyRefreshController _controller; | ||
|
|
||
| @override | ||
| void initState() { | ||
| super.initState(); | ||
| _controller = EasyRefreshController( | ||
| controlFinishRefresh: true, | ||
| controlFinishLoad: true, | ||
| ); | ||
| } | ||
|
|
||
| @override | ||
| void dispose() { | ||
| _controller.dispose(); | ||
| super.dispose(); | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Material( | ||
| child: CupertinoPageScaffold( | ||
| child: EasyRefresh( | ||
| controller: _controller, | ||
| header: const CupertinoHeader( | ||
| position: IndicatorPosition.locator, | ||
| safeArea: false, | ||
| ), | ||
| footer: const CupertinoFooter( | ||
| position: IndicatorPosition.locator, | ||
| ), | ||
| onRefresh: () async { | ||
| await Future.delayed(const Duration(seconds: 2)); | ||
| if (!mounted) { | ||
| return; | ||
| } | ||
| setState(() { | ||
| _count = 10; | ||
| }); | ||
| _controller.finishRefresh(); | ||
| _controller.resetFooter(); | ||
| }, | ||
| onLoad: () async { | ||
| await Future.delayed(const Duration(seconds: 2)); | ||
| if (!mounted) { | ||
| return; | ||
| } | ||
| setState(() { | ||
| _count += 5; | ||
| }); | ||
| _controller.finishLoad(_count >= 20 | ||
| ? IndicatorResult.noMore | ||
| : IndicatorResult.success); | ||
| }, | ||
| child: CustomScrollView( | ||
| slivers: [ | ||
| const CupertinoSliverNavigationBar( | ||
| largeTitle: Text('iOS Cupertino'), | ||
| ), | ||
| const HeaderLocator.sliver(), | ||
| SliverList( | ||
| delegate: SliverChildBuilderDelegate( | ||
| (context, index) { | ||
| return const SkeletonItem(); | ||
| }, | ||
| childCount: _count, | ||
| ), | ||
| ), | ||
| const FooterLocator.sliver(), | ||
| ], | ||
| ), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| part of easy_refresh; | ||
|
|
||
| const double _kDefaultCupertinoIndicatorRadius = 14.0; | ||
|
|
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| /// Cupertino indicator. | ||
| /// Base widget for [CupertinoHeader] and [CupertinoFooter]. | ||
| class _CupertinoIndicator extends StatefulWidget { | ||
| /// Indicator properties and state. | ||
| final IndicatorState state; | ||
|
|
||
| /// True for up and left. | ||
| /// False for down and right. | ||
| final bool reverse; | ||
|
|
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| const _CupertinoIndicator({ | ||
| Key? key, | ||
| required this.state, | ||
| required this.reverse, | ||
| }) : super(key: key); | ||
|
|
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| @override | ||
| State<_CupertinoIndicator> createState() => _CupertinoIndicatorState(); | ||
| } | ||
|
|
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| class _CupertinoIndicatorState extends State<_CupertinoIndicator> { | ||
| IndicatorMode get _mode => widget.state.mode; | ||
| double get _offset => widget.state.offset; | ||
| double get _actualTriggerOffset => widget.state.actualTriggerOffset; | ||
|
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| double get _radius => _kDefaultCupertinoIndicatorRadius; | ||
|
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| Widget _buildIndicator() { | ||
| final scale = (_offset / _actualTriggerOffset).clamp(0.0, 1.0); | ||
| switch (_mode) { | ||
| case IndicatorMode.drag: | ||
| case IndicatorMode.armed: | ||
| const Curve opacityCurve = Interval( | ||
| 0.0, | ||
| 0.8, | ||
| curve: Curves.easeInOut, | ||
| ); | ||
| return Opacity( | ||
| opacity: opacityCurve.transform(scale), | ||
| child: CupertinoActivityIndicator.partiallyRevealed( | ||
| radius: _radius, | ||
| progress: math.min(scale, 0.99), | ||
| ), | ||
| ); | ||
| case IndicatorMode.ready: | ||
| case IndicatorMode.processing: | ||
| case IndicatorMode.processed: | ||
| return CupertinoActivityIndicator( | ||
| radius: _radius, | ||
| ); | ||
| case IndicatorMode.done: | ||
| return CupertinoActivityIndicator( | ||
| radius: _radius * scale, | ||
| ); | ||
| default: | ||
| return Container(); | ||
| } | ||
| } | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Stack( | ||
| alignment: Alignment.center, | ||
| children: [ | ||
| SizedBox( | ||
| height: _offset, | ||
| width: double.infinity, | ||
| ), | ||
| Positioned( | ||
| top: 0, | ||
| left: 0, | ||
| right: 0, | ||
| child: Container( | ||
| alignment: Alignment.center, | ||
| height: _actualTriggerOffset, | ||
| width: double.infinity, | ||
| child: _buildIndicator(), | ||
| ), | ||
| ), | ||
| ], | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| part of easy_refresh; | ||
|
|
||
| class CupertinoFooter extends Footer { | ||
| final Key? key; | ||
|
|
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| const CupertinoFooter({ | ||
| this.key, | ||
| double triggerOffset = 60, | ||
| bool clamping = false, | ||
| IndicatorPosition position = IndicatorPosition.behind, | ||
| Duration processedDuration = Duration.zero, | ||
| SpringDescription? spring, | ||
| SpringBuilder? readySpringBuilder, | ||
| bool springRebound = true, | ||
| FrictionFactor? frictionFactor, | ||
| bool safeArea = true, | ||
| double? infiniteOffset = 60, | ||
| bool? hitOver, | ||
| bool? infiniteHitOver, | ||
| bool hapticFeedback = false, | ||
| }) : super( | ||
| triggerOffset: triggerOffset, | ||
| clamping: clamping, | ||
| processedDuration: processedDuration, | ||
| spring: spring, | ||
| readySpringBuilder: readySpringBuilder, | ||
| springRebound: springRebound, | ||
| frictionFactor: frictionFactor, | ||
| safeArea: safeArea, | ||
| infiniteOffset: infiniteOffset, | ||
| hitOver: hitOver, | ||
| infiniteHitOver: infiniteHitOver, | ||
| position: position, | ||
| hapticFeedback: hapticFeedback, | ||
| ); | ||
|
|
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| @override | ||
| Widget build(BuildContext context, IndicatorState state) { | ||
| assert(state.axis == Axis.vertical, | ||
| 'CupertinoFooter does not support horizontal scrolling.'); | ||
| return _CupertinoIndicator( | ||
| key: key, | ||
| state: state, | ||
| reverse: state.reverse, | ||
| ); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| part of easy_refresh; | ||
|
|
||
| class CupertinoHeader extends Header { | ||
| final Key? key; | ||
|
|
||
| const CupertinoHeader({ | ||
| this.key, | ||
| double triggerOffset = 60, | ||
| bool clamping = false, | ||
| IndicatorPosition position = IndicatorPosition.behind, | ||
| Duration processedDuration = const Duration(seconds: 1), | ||
| SpringDescription? spring, | ||
| SpringBuilder? readySpringBuilder, | ||
| bool springRebound = false, | ||
| FrictionFactor? frictionFactor, | ||
| bool safeArea = true, | ||
| double? infiniteOffset, | ||
| bool? hitOver, | ||
| bool? infiniteHitOver, | ||
| bool hapticFeedback = false, | ||
| }) : super( | ||
| triggerOffset: triggerOffset, | ||
| clamping: clamping, | ||
| processedDuration: processedDuration, | ||
| spring: spring, | ||
| readySpringBuilder: readySpringBuilder, | ||
| springRebound: springRebound, | ||
| frictionFactor: frictionFactor, | ||
| safeArea: safeArea, | ||
| infiniteOffset: infiniteOffset, | ||
| hitOver: hitOver, | ||
| infiniteHitOver: infiniteHitOver, | ||
| position: position, | ||
| hapticFeedback: hapticFeedback, | ||
| ); | ||
|
|
||
| @override | ||
| Widget build(BuildContext context, IndicatorState state) { | ||
| assert(state.axis == Axis.vertical, | ||
| 'CupertinoHeader does not support horizontal scrolling.'); | ||
| return _CupertinoIndicator( | ||
| key: key, | ||
| state: state, | ||
| reverse: state.reverse, | ||
| ); | ||
| } | ||
| } |
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