Android如何使用/显示MediaController与SurfaceView和MediaPlayer的video？

我必须使用MediaPlayer播放video，而不是VideoView。 我在Xml Layout中有一个SurfaceView，在Activity端有一个MediaPlayer和一个MediaController。

我找不到使用MediaView和SurfaceView和MediaPlayer的方法。 使用VideoView非常容易，但无法弄清楚如何使用MediaPlayer。

我在网上找到了例子，但它们都是关于播放音频，而不是video。

这是我创建MediaPlayer的surfaceCreated方法

@Override public void surfaceCreated(SurfaceHolder holder) { try { mMediaPlayer = new MediaPlayer(); mMediaPlayer.setDisplay(mSurfaceHolder); mMediaPlayer.setDataSource(this, Uri.parse(mUrl)); mMediaPlayer.setOnPreparedListener(this); mMediaPlayer.prepare(); mMediaController = new MediaController(this); } catch (Exception e) { Log.e(TAG, "MediaPlayer Prepare: " + e.getMessage()); } } 

和这个MediaPlayer onPrepared方法

 @Override public void onPrepared(MediaPlayer mp) { mVideoWidth = mp.getVideoWidth(); mVideoHeight = mp.getVideoHeight(); mSurfaceHolder.setFixedSize(mVideoWidth, mVideoHeight); startVideoPlayback(); mMediaController.setMediaPlayer(this); handler.post(new Runnable() { public void run() { mMediaController.setEnabled(true); mMediaController.show(); } }); } 

上面的代码没有在SurfaceView上显示MediaController。
我怎样才能做到这一点？

提前致谢。

Answer 1

因为你必须实现活动

 OnBufferingUpdateListener, OnCompletionListener, OnPreparedListener, OnVideoSizeChangedListener, SurfaceHolder.Callback, MediaPlayerControl 

检查下面的工作代码

 package com.example.demo; import android.app.Activity; import android.media.AudioManager; import android.media.MediaPlayer; import android.media.MediaPlayer.OnBufferingUpdateListener; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnPreparedListener; import android.media.MediaPlayer.OnVideoSizeChangedListener; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.widget.MediaController; import android.widget.MediaController.MediaPlayerControl; import android.widget.ProgressBar; public class MainActivity extends Activity implements OnBufferingUpdateListener, OnCompletionListener, OnPreparedListener, OnVideoSizeChangedListener, SurfaceHolder.Callback, MediaPlayerControl{ String url = "your video url"; MediaPlayer mMediaPlayer ; SurfaceView mSurfaceView ; SurfaceHolder holder ; private ConstantAnchorMediaController controller = null; ProgressBar progressBar1 ; MediaController mcontroller ; Handler handler ; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); progressBar1 = (ProgressBar)findViewById(R.id.progressBar1); SurfaceView v = (SurfaceView) findViewById(R.id.surface); handler = new Handler(); holder = v.getHolder(); holder.addCallback(this); playVideo(); } private void playVideo() { try { mcontroller = new MediaController(this); mMediaPlayer = MediaPlayer.create(this, Uri.parse(url)); mMediaPlayer.setOnBufferingUpdateListener(this); mMediaPlayer.setOnCompletionListener(this); mMediaPlayer.setOnPreparedListener(this); mMediaPlayer.setScreenOnWhilePlaying(true); mMediaPlayer.setOnVideoSizeChangedListener(this); mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); } catch (Exception e) { e.printStackTrace(); } } @Override public boolean onTouchEvent(MotionEvent event) { mcontroller.show(); return false; } @Override public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) { // TODO Auto-generated method stub } @Override public void surfaceCreated(SurfaceHolder arg0) { mMediaPlayer.setDisplay(holder); try { mMediaPlayer.start(); } catch (IllegalStateException e) { e.printStackTrace(); } } @Override public void surfaceDestroyed(SurfaceHolder arg0) { // TODO Auto-generated method stub } @Override public void onVideoSizeChanged(MediaPlayer mp, int width, int height) { // TODO Auto-generated method stub } @Override public void onPrepared(MediaPlayer mp) { // TODO Auto-generated method stub progressBar1.setVisibility(View.GONE); mcontroller.setMediaPlayer(this); mcontroller.setAnchorView(findViewById(R.id.surface)); mcontroller.setEnabled(true); handler.post(new Runnable() { public void run() { mcontroller.show(); } }); } @Override public void onCompletion(MediaPlayer mp) { // TODO Auto-generated method stub } @Override public void onBufferingUpdate(MediaPlayer mp, int percent) { // TODO Auto-generated method stub } public void start() { mMediaPlayer.start(); } public void pause() { mMediaPlayer.pause(); } public int getDuration() { return mMediaPlayer.getDuration(); } public int getCurrentPosition() { return mMediaPlayer.getCurrentPosition(); } public void seekTo(int i) { mMediaPlayer.seekTo(i); } public boolean isPlaying() { return mMediaPlayer.isPlaying(); } public int getBufferPercentage() { return 0; } public boolean canPause() { return true; } public boolean canSeekBackward() { return true; } public boolean canSeekForward() { return true; } }