Android 播放视频文件

 package com.example.myvideo2;

 import java.io.File;

 import android.app.Activity;

 import android.net.Uri;

 import android.os.Bundle;

 import android.os.Environment;

 import android.view.Menu;

 import android.view.MenuItem;

 import android.view.View;

 import android.widget.Button;

 import android.widget.MediaController;

 import android.widget.MediaController.MediaPlayerControl;

 import android.widget.VideoView;

 /**

  * Android 播放视频

  * @Describe:

  * @package: com.example.myvideo2

  * @author shaobn

  * @date 2015-9-14 上午10:57:41

  */

 public class MainActivity extends Activity implements MediaPlayerControl {

     private VideoView videoView;

     private MediaController mediaController;

     private Button button;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.activity_main);

         mediaController = new MediaController(MainActivity.this);

         videoView = (VideoView) this.findViewById(R.id.videoView1);

         button = (Button) this.findViewById(R.id.button1);

         videoView.setMediaController(mediaController);

         button.setOnClickListener(new View.OnClickListener() {

             @Override

             public void onClick(View arg0) {

                 // TODO Auto-generated method stub

                 if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){

                     File file1 = Environment.getExternalStorageDirectory();

                     File file2 = new File(file1,"/Movies/Video.mp4");

                     Uri uri = Uri.fromFile(file2);

                     videoView.setVideoURI(uri);

                 }

             }

         });

     }

     @Override

     public boolean canPause() {

         // TODO Auto-generated method stub

         return videoView.canPause();

     }

     @Override

     public boolean canSeekBackward() {

         // TODO Auto-generated method stub

         return videoView.canSeekBackward();

     }

     @Override

     public boolean canSeekForward() {

         // TODO Auto-generated method stub

         return videoView.canSeekForward();

     }

     @Override

     public int getAudioSessionId() {

         // TODO Auto-generated method stub

         return 0;

     }

     @Override

     public int getBufferPercentage() {

         // TODO Auto-generated method stub

         return 0;

     }

     @Override

     public int getCurrentPosition() {

         // TODO Auto-generated method stub

         return 0;

     }

     @Override

     public int getDuration() {

         // TODO Auto-generated method stub

         return 0;

     }

     @Override

     public boolean isPlaying() {

         // TODO Auto-generated method stub

         return videoView.isPlaying();

     }

     @Override

     public void pause() {

         // TODO Auto-generated method stub

         if (videoView.isPlaying()) {

             videoView.pause();

         }

     }

     @Override

     public void seekTo(int arg0) {

         // TODO Auto-generated method stub

         videoView.seekTo(arg0);

     }

     @Override

     public void start() {

         // TODO Auto-generated method stub

         videoView.start();

     }

 }

实现播放视频文件。