成品直播源码推荐，Flutter波浪进度条WaveProgressBar
第一步：添加以下代码到你的pubspec.yaml文件
dependencies:
waveprogressbar_flutter: "^0.1.1"
第二步：导包，添加以下代码到你要使用的文件下
import 'package:waveprogressbar_flutter/waveprogressbar_flutter.dart';
第三步：写你的业务代码
import 'package:flutter/material.dart';
import 'package:waveprogressbar_flutter/waveprogressbar_flutter.dart';
class BezierCurveDemo extends StatefulWidget{
@override
State<StatefulWidget> createState() {
return BezierCurveDemoState();
}
}
class BezierCurveDemoState extends State<BezierCurveDemo>{
final TextEditingController _controller = new TextEditingController();
//默认初始值为0.0
double waterHeight=0.0;
WaterController waterController=WaterController();
@override
void initState() {
super.initState();
WidgetsBinding widgetsBinding=WidgetsBinding.instance;
widgetsBinding.addPostFrameCallback((callback){
//这里写你想要显示的百分比
waterController.changeWaterHeight(0.82);
});
}
@override
Widget build(BuildContext context) {
return new Scaffold(
resizeToAvoidBottomPadding: false,
appBar: new AppBar(
title: new Text("贝塞尔曲线测试"),
),
body: new Column(
children: <Widget>[
new Row(
children: <Widget>[
new Text("高度调整: ",
style: new TextStyle(fontSize: 20.0),
),
new Container(
width: 150.0,
child: new TextField(
controller: _controller,
decoration: new InputDecoration(
hintText: "请输入高度",
)
),
),
new RaisedButton(onPressed: (){
print("waterHeight is ${_controller.toString()}");
FocusScope.of(context).requestFocus(FocusNode());
waterController.changeWaterHeight(double.parse(_controller.text));
},
child: new Text("确定"),
),
],
),
new Container(
margin: EdgeInsets.only(top: 80.0),
child: new Center(
child: new WaveProgressBar(
flowSpeed: 2.0,
waveDistance:45.0,
waterColor: Color(0xFF68BEFC),
//strokeCircleColor: Color(0x50e16009),
heightController: waterController,
percentage: waterHeight,
size: new Size (300,300),
textStyle: new TextStyle(
color:Color(0x15000000),
fontSize: 60.0,
fontWeight: FontWeight.bold),
),
),
),
],
),
);
}
}
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