一 概述
- Rive是Flare的升级版本,是一个实时交互设计和动画工具。
- 文件的后缀名是
.riv
,加载动画时使用的是Rive Flutter runtime
- Rive支持跨平台,支持Web,IOS,Android,Flutter,C++等终端
二 Rive
2.1 仓库地址
Rive:https://github.com/rive-app/rive-flutter
2.2 插件地址
rive 0.7.9:https://pub.dev/packages/rive
2.3 插件的安装及卸载
插件安装
打开CMD终端,执行如下指令(自动添加pubspec.yaml依赖)
插件卸载
打开CMD终端,执行如下指令(pubspec.yaml依赖被删除)
三 Rive素材
3.1 素材资源
https://rive.app/community/
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3.2 素材下载
在素材页面,选择素材进入详情页,选择右侧的Open in Preview Player
打开
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查看可供执行的Animation(如图:Walk,Hit,In)
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返回素材详情页进行下载(下载后的文件名为205-467-zombie-character.riv
可改名为zombie.riv
)
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四 示例
4.1 添加Riv依赖(assets下所有文件)
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| assets: - images/ - assets/
|
4.2 代码(通过设置不同名称,显示动画效果)
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| class _MyHomePageState extends State<MyHomePage> { //rive Artboard _riveArtboard; RiveAnimationController _controller; bool get isPlaying => _controller?.isActive ?? false;
@override void initState() { super.initState(); rootBundle.load("assets/zombie.riv").then((value) async { final file = RiveFile.import(value); final artboard = file.mainArtboard; artboard.addController(_controller = SimpleAnimation('idle')); setState(() => _riveArtboard = artboard); }); } @override Widget build(BuildContext context) { return Scaffold( body: Column( children: [ Flexible(child: _riveArtboard == null ? Container(color: Colors.blue,) : Rive(artboard:_riveArtboard, alignment:Alignment.center, fit:BoxFit.contain, )), Column( mainAxisAlignment:MainAxisAlignment.start, crossAxisAlignment: CrossAxisAlignment.center, children: [ RaisedButton(child: Text("Walk"),onPressed: (){setState(() { _riveArtboard.addController(_controller = SimpleAnimation('Walk'));});}), RaisedButton(child: Text("Hit"),onPressed: (){setState(() { _riveArtboard.addController(_controller = SimpleAnimation('Hit'));});}), RaisedButton(child: Text("In"),onPressed: (){setState(() {_riveArtboard.addController(_controller = SimpleAnimation('In'));});}) ],) ], ), floatingActionButton: FloatingActionButton( onPressed: _togglePlay, tooltip: isPlaying ? 'Pause' : 'Play', child: Icon( isPlaying ? Icons.pause : Icons.play_arrow, ), ) ); }
void _togglePlay() { setState(() => _controller.isActive = !_controller.isActive); } }
|
4.3 效果图
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