收音机开始但它并没有停止当我在项目中切换页面时它不会停止

问题描述

我希望在页面之间切换时停止收音机。我第一次按下停止和启动按钮时它起作用，但是当我想停止时再次按下它时它不会停止。收音机一直开着，从不关掉。当我完全关闭应用程序时，收音机就会停止。我想在同一个按钮上进行停止和恢复操作，我希望在页面之间切换时停止。怎么解决？

代码在这里：

import 'package:Flutter/material.dart';
import 'package:Flutter_radio/Flutter_radio.dart';
class RadioSayfasi extends StatefulWidget {
  @override
  _RadioSayfasiState createState() => _RadioSayfasiState();
}

class _RadioSayfasiState extends State<RadioSayfasi> {
  String url= "https://player.web.tr/listen/d695bfdfb2710f7c53feb05550da66ef";

  bool isPlaying= false;
  bool isVisible= true;
  
  @override
  void initState() {
    // Todo: implement initState
    super.initState();
    audioStart();
  }

  Future <void> audioStart() async {
    await FlutterRadio.audioStart();
    print("Radio Başladı");
  }
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
        title: 'IndieXL Online Radio',debugShowCheckedModeBanner: false,home: new Scaffold(
          appBar: new AppBar(
            title: const Text('FM Radio'),backgroundColor: Colors.blueGrey.shade900,centerTitle: true,),body: Container(
            color: Colors.blueGrey.shade900,child: new Column(
              children: <Widget>[
                Expanded(
                  flex: 7,child: Icon(
                    Icons.radio,size: 250,color: Colors.white,Expanded(
                  flex: 2,child: Padding(
                    padding: const EdgeInsets.only(right: 40),child: Align(
                      alignment: FractionalOffset.center,child: IconButton(icon: isPlaying? Icon(
                        Icons.pause_circle_outline,size: 80,)
                          : Icon(
                        Icons.play_circle_outline,onpressed: (){
                          setState(() {
                            FlutterRadio.play(url: url);
                            isPlaying = !isPlaying;
                            isVisible = !isVisible;
                            print("tıkladı");
                          });
                        },SizedBox(height: 50,)
              ],));
  }

}

解决方法

我猜你提到的图书馆，https://github.com/thyagoluciano/flutter_radio

要在离开屏幕时停止广播流，只需覆盖 dispose 方法

https://github.com/thyagoluciano/flutter_radio/blob/master/lib/flutter_radio.dart#L67

@action
dispose() async {
    await FlutterRadio.stop();
}

开始或暂停广播流 https://github.com/thyagoluciano/flutter_radio/blob/master/lib/flutter_radio.dart#L22

onPressed: (){ 
    setState(() { 
        //FlutterRadio.play(url: url); 
        FlutterRadio.playOrPause(url: url); 
        isPlaying = !isPlaying; 
        isVisible = !isVisible; 
        print("tıkladı"); 
    }); 
},