調用android api播放視頻，使用MediaPlayer

 上文調用android api播放視頻使用的是VideoView，是比較高層的API播放視頻，比較簡明，但定制性方面不如使用MediaPlayer。

參考的示例是android SDK示例代碼：

源代碼：

package com.easymorse; 
 
import java.io.IOException; 
 
import android.app.Activity;  
import android.media.AudioManager;  
import android.media.MediaPlayer;  
import android.media.MediaPlayer.OnBufferingUpdateListener;  
import android.media.MediaPlayer.OnCompletionListener;  
import android.os.Bundle;  
import android.util.Log;  
import android.view.SurfaceHolder;  
import android.view.SurfaceView; 
 
public class MPlayerActivity extends Activity implements  
        OnBufferingUpdateListener, OnCompletionListener,  
        MediaPlayer.OnPreparedListener, SurfaceHolder.Callback { 
 
    private MediaPlayer mediaPlayer; 
 
    private SurfaceView surfaceView; 
 
    private SurfaceHolder surfaceHolder; 
 
    private int videoWidth; 
 
    private int videoHeight; 
 
    /** Called when the activity is first created. */  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.main);  
        this.surfaceView = (SurfaceView) this.findViewById(R.id.surface);  
        this.surfaceHolder = this.surfaceView.getHolder();  
        this.surfaceHolder.addCallback(this);  
        this.surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
        Log.v("mplayer", ">>>create ok.");  
    } 
 
    private void playVideo() throws IllegalArgumentException,  
            IllegalStateException, IOException {  
        this.mediaPlayer = new MediaPlayer();  
        this.mediaPlayer  
                .setDataSource("http://sayedhashimi.com/downloads/android/movie.mp4"); 
        this.mediaPlayer.setDisplay(this.surfaceHolder);  
        this.mediaPlayer.prepare();  
        this.mediaPlayer.setOnBufferingUpdateListener(this);  
        this.mediaPlayer.setOnPreparedListener(this);  
        this.mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); 
        Log.v("mplayer", ">>>play video");  
    } 
 
    @Override  
    public void onBufferingUpdate(MediaPlayer mp, int percent) {  
        // TODO Auto-generated method stub 
 
    } 
 
    @Override  
    public void onCompletion(MediaPlayer mp) {  
        // TODO Auto-generated method stub 
 
    } 
 
    @Override  
    public void onPrepared(MediaPlayer mp) {  
        this.videoWidth = this.mediaPlayer.getVideoWidth();  
        this.videoHeight = this.mediaPlayer.getVideoHeight(); 
 
        if (this.videoHeight != 0 && this.videoWidth != 0) {  
            this.surfaceHolder.setFixedSize(this.videoWidth, this.videoHeight);  
            this.mediaPlayer.start();  
        }  
    } 
 
    @Override  
    public void surfaceChanged(SurfaceHolder holder, int format, int width,  
            int height) {  
        Log.v("mplayer", ">>>surface changed");  
    } 
 
    @Override  
    public void surfaceCreated(SurfaceHolder holder) {  
        try {  
            this.playVideo();  
        } catch (Exception e) {  
            Log.e("mplayer", ">>>error", e);  
        }  
        Log.v("mplayer", ">>>surface created");  
    } 
 
    @Override  
    public void surfaceDestroyed(SurfaceHolder holder) {  
        Log.v("mplayer", ">>>surface destroyed");  
    } 
 
    @Override  
    protected void onDestroy() {  
        super.onDestroy();  
        if (this.mediaPlayer != null) {  
            this.mediaPlayer.release();  
            this.mediaPlayer = null;  
        }  
    }  
} 

源代碼見：

http://easymorse.googlecode.com/svn/tags/mplayer-1.0