Android 播放音乐

Android 播放音乐

xml代码如下：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    tools:context=".MainActivity">


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/play"
        android:text="播放"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/stop"
        android:text="暂停"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/replay"
        android:text="重新开始"/>

</LinearLayout>

MainActivity代码如下：

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    private Button play;
    private Button stop;
    private Button replay;
    private MediaPlayer player;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        play = (Button) findViewById(R.id.play);
        stop = (Button) findViewById(R.id.stop);
        replay = (Button) findViewById(R.id.replay);
        play.setOnClickListener(this);
        stop.setOnClickListener(this);
        replay.setOnClickListener(this);
        initVideo();
    }

    private void initVideo(){
        player = new MediaPlayer();
        player = MediaPlayer.create(this, R.raw.music);
        try {
            player.prepare();// 同步
        } catch (IllegalStateException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.play:
                if(!player.isPlaying()){
                    player.start();
                }
                break;
            case R.id.stop:
                if(player.isPlaying()){
                    player.pause();

                }
                break;
            case R.id.replay:
                if (!player.isPlaying()){
                    initVideo();
                    player.start();
                    //player.reset();
                }else {
                    player.stop();
                    initVideo();
                    player.start();
                }
                break;
                default:
                    break;
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if(player!=null){
            player.stop();
            player.release();
        }
    }
}

本文地址：https://blog.csdn.net/weixin_44616286/article/details/107451668