1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 xmlns:tools="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:orientation="vertical" 6 tools:context=".MainActivity" > 7  8 <VideoView 9 android:id="@+id/video"10 android:layout_width="match_parent"11 android:layout_height="match_parent" />12 13 </LinearLayout>

 1 import java.io.File; 2  3 import android.app.Activity; 4 import android.os.Bundle; 5 import android.os.Environment; 6 import android.widget.MediaController; 7 import android.widget.Toast; 8 import android.widget.VideoView; 9 10 public class MainActivity extends Activity {11  VideoView videoView;12  MediaController mController;13 14  @Override15 protected void onCreate(Bundle savedInstanceState) {16 super.onCreate(savedInstanceState);17  setContentView(R.layout.activity_main);18 videoView = (VideoView) findViewById(R.id.video);19 mController = new MediaController(this);20 File video = new File(Environment.getExternalStorageDirectory() + "/xiexienideai.mp4");//获得手机上sd卡视频存储路径21 if(video.exists()){22  videoView.setVideoPath(video.getAbsolutePath());23 videoView.setMediaController(mController);//设置mController关联videoview24  mController.setMediaPlayer(videoView);25 videoView.requestFocus();//videoview获得焦点26 }else{27 Toast.makeText(this, "nonono", Toast.LENGTH_LONG).show();28  }29  }30 31 }