SurfaceView+MediaPlayer实现视频播放

Posted 2022-01-15 zhangjin1120

效果图，是动画片《辛特尔》的截图，加载可能要几十秒

• 不要忘了网络权限

    <uses-permission android:name="android.permission.INTERNET" />

• MainActivity.java代码

public class MainActivity extends AppCompatActivity 

    private SurfaceView surfaceView;
    private MediaPlayer player;
    private SurfaceHolder holder;
    private ProgressBar progressBar;


    @Override
    protected void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        surfaceView = (SurfaceView) findViewById(R.id.surfaceView);
        progressBar = (ProgressBar) findViewById(R.id.progressBar);
        String uri = "https://media.w3.org/2010/05/sintel/trailer.mp4";

        player = new MediaPlayer();
        try 
            player.setDataSource(this, Uri.parse(uri));
            holder = surfaceView.getHolder();
            holder.addCallback(new MyCallBack());
            player.prepareAsync();
            player.setOnPreparedListener(new MediaPlayer.OnPreparedListener() 
                @Override
                public void onPrepared(MediaPlayer mp) 
                    progressBar.setVisibility(View.INVISIBLE);
                    player.start();
                    player.setLooping(true);
                
            );
         catch (IOException e) 
            e.printStackTrace();
        
    

    private class MyCallBack implements SurfaceHolder.Callback 
        @Override
        public void surfaceCreated(SurfaceHolder holder) 
            player.setDisplay(holder);
        

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) 

        

        @Override
        public void surfaceDestroyed(SurfaceHolder holder) 

        
    

• activity_main.xml布局代码

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <SurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:layout_centerInParent="true"
        />

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
       android:layout_centerInParent="true"
        />

</RelativeLayout>