Uriuri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+"/Test_Movie.m4v"); 
//調(diào)用系統(tǒng)自帶的播放器 
 Intentintent = new Intent(Intent.ACTION_VIEW); 
 Log.v("URI:::::::::", uri.toString()); 
 intent.setDataAndType(uri, "video/mp4"); 
 startActivity(intent);

Uriuri = Uri.parse(Environment.getExternalStorageDirectory().getPath()+"/Test_Movie.m4v"); 
VideoViewvideoView = (VideoView)this.findViewById(R.id.video_view); 
videoView.setMediaController(new MediaController(this)); 
videoView.setVideoURI(uri); 
videoView.start(); 
videoView.requestFocus();

package demo.camera; 
import java.io.IOException; 
import android.app.Activity; 
import android.media.MediaPlayer; 
import android.media.MediaPlayer.OnCompletionListener; 
import android.media.MediaPlayer.OnErrorListener; 
import android.media.MediaPlayer.OnInfoListener; 
import android.media.MediaPlayer.OnPreparedListener; 
import android.media.MediaPlayer.OnSeekCompleteListener; 
import android.media.MediaPlayer.OnVideoSizeChangedListener; 
import android.os.Bundle; 
import android.os.Environment; 
import android.util.Log; 
import android.view.Display; 
import android.view.SurfaceHolder; 
import android.view.SurfaceView; 
import android.widget.LinearLayout; 
/** 
* 該實(shí)例中使用MediaPlayer完成播放，同時(shí)界面使用SurfaceView來(lái)實(shí)現(xiàn) 
* 
* 這里我們實(shí)現(xiàn)MediaPlayer中很多狀態(tài)變化時(shí)的監(jiān)聽(tīng)器 
* 
* 使用Mediaplayer時(shí)，也可以使用MediaController類，但是需要實(shí)現(xiàn)MediaController.mediaController接口 
* 實(shí)現(xiàn)一些控制方法。 
* 
* 然后，設(shè)置controller.setMediaPlayer(),setAnchorView(),setEnabled(),show()就可以了，這里不再實(shí)現(xiàn) 
* @author Administrator 
* 
*/ 
public class VideoSurfaceDemoextends Activityimplements OnCompletionListener,OnErrorListener,OnInfoListener, 
 OnPreparedListener, OnSeekCompleteListener,OnVideoSizeChangedListener,SurfaceHolder.Callback{ 
 private DisplaycurrDisplay; 
 private SurfaceViewsurfaceView; 
 private SurfaceHolderholder; 
 private MediaPlayerplayer; 
 private int vWidth,vHeight; 
 //private boolean readyToPlay = false; 
   
 public void onCreate(BundlesavedInstanceState){ 
  super.onCreate(savedInstanceState); 
  this.setContentView(R.layout.video_surface); 
     
  surfaceView = (SurfaceView)this.findViewById(R.id.video_surface); 
  //給SurfaceView添加CallBack監(jiān)聽(tīng) 
  holder = surfaceView.getHolder(); 
  holder.addCallback(this); 
  //為了可以播放視頻或者使用Camera預(yù)覽，我們需要指定其Buffer類型 
  holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); 
   
  //下面開(kāi)始實(shí)例化MediaPlayer對(duì)象 
  player = new MediaPlayer(); 
  player.setOnCompletionListener(this); 
  player.setOnErrorListener(this); 
  player.setOnInfoListener(this); 
  player.setOnPreparedListener(this); 
  player.setOnSeekCompleteListener(this); 
  player.setOnVideoSizeChangedListener(this); 
  Log.v("Begin:::", "surfaceDestroyed called"); 
  //然后指定需要播放文件的路徑，初始化MediaPlayer 
  String dataPath = Environment.getExternalStorageDirectory().getPath()+"/Test_Movie.m4v"; 
  try { 
   player.setDataSource(dataPath); 
   Log.v("Next:::", "surfaceDestroyed called"); 
  } catch (IllegalArgumentException e) { 
   e.printStackTrace(); 
  } catch (IllegalStateException e) { 
   e.printStackTrace(); 
  } catch (IOException e) { 
   e.printStackTrace(); 
  } 
  //然后，我們?nèi)〉卯?dāng)前Display對(duì)象 
  currDisplay = this.getWindowManager().getDefaultDisplay(); 
 } 
  
 @Override 
 public void surfaceChanged(SurfaceHolderarg0, int arg1, int arg2, int arg3) { 
  // 當(dāng)Surface尺寸等參數(shù)改變時(shí)觸發(fā) 
  Log.v("Surface Change:::", "surfaceChanged called"); 
 } 
 @Override 
 public void surfaceCreated(SurfaceHolderholder) { 
  // 當(dāng)SurfaceView中的Surface被創(chuàng)建的時(shí)候被調(diào)用 
  //在這里我們指定MediaPlayer在當(dāng)前的Surface中進(jìn)行播放 
  player.setDisplay(holder); 
  //在指定了MediaPlayer播放的容器后，我們就可以使用prepare或者prepareAsync來(lái)準(zhǔn)備播放了 
  player.prepareAsync(); 
   
 } 
 @Override 
 public void surfaceDestroyed(SurfaceHolderholder) { 
   
  Log.v("Surface Destory:::", "surfaceDestroyed called"); 
 } 
 @Override 
 public void onVideoSizeChanged(MediaPlayerarg0, int arg1, int arg2) { 
  // 當(dāng)video大小改變時(shí)觸發(fā) 
  //這個(gè)方法在設(shè)置player的source后至少觸發(fā)一次 
  Log.v("Video Size Change", "onVideoSizeChanged called"); 
   
 } 
 @Override 
 public void onSeekComplete(MediaPlayerarg0) { 
  // seek操作完成時(shí)觸發(fā) 
  Log.v("Seek Completion", "onSeekComplete called"); 
   
 } 
 @Override 
 public void onPrepared(MediaPlayerplayer) { 
  // 當(dāng)prepare完成后，該方法觸發(fā)，在這里我們播放視頻 
   
  //首先取得video的寬和高 
  vWidth = player.getVideoWidth(); 
  vHeight = player.getVideoHeight(); 
   
  if(vWidth > currDisplay.getWidth() || vHeight > currDisplay.getHeight()){ 
   //如果video的寬或者高超出了當(dāng)前屏幕的大小，則要進(jìn)行縮放 
   float wRatio = (float)vWidth/(float)currDisplay.getWidth(); 
   float hRatio = (float)vHeight/(float)currDisplay.getHeight(); 
    
   //選擇大的一個(gè)進(jìn)行縮放 
   float ratio = Math.max(wRatio, hRatio); 
    
   vWidth = (int)Math.ceil((float)vWidth/ratio); 
   vHeight = (int)Math.ceil((float)vHeight/ratio); 
    
   //設(shè)置surfaceView的布局參數(shù) 
   surfaceView.setLayoutParams(new LinearLayout.LayoutParams(vWidth, vHeight)); 
    
   //然后開(kāi)始播放視頻 
    
   player.start(); 
  } 
 } 
 @Override 
 public boolean onInfo(MediaPlayerplayer, int whatInfo, int extra) { 
  // 當(dāng)一些特定信息出現(xiàn)或者警告時(shí)觸發(fā) 
  switch(whatInfo){ 
  case MediaPlayer.MEDIA_INFO_BAD_INTERLEAVING: 
   break; 
  case MediaPlayer.MEDIA_INFO_METADATA_UPDATE:  
   break; 
  case MediaPlayer.MEDIA_INFO_VIDEO_TRACK_LAGGING: 
   break; 
  case MediaPlayer.MEDIA_INFO_NOT_SEEKABLE: 
   break; 
  } 
  return false; 
 } 
 @Override 
 public boolean onError(MediaPlayerplayer, int whatError, int extra) { 
  Log.v("Play Error:::", "onError called"); 
  switch (whatError) { 
  case MediaPlayer.MEDIA_ERROR_SERVER_DIED: 
   Log.v("Play Error:::", "MEDIA_ERROR_SERVER_DIED"); 
   break; 
  case MediaPlayer.MEDIA_ERROR_UNKNOWN: 
   Log.v("Play Error:::", "MEDIA_ERROR_UNKNOWN"); 
   break; 
  default: 
   break; 
  } 
  return false; 
 } 
 @Override 
 public void onCompletion(MediaPlayerplayer) { 
  // 當(dāng)MediaPlayer播放完成后觸發(fā) 
  Log.v("Play Over:::", "onComletion called"); 
  this.finish(); 
 } 
}