<? xml version="1.0" encoding="utf-8" ?> < RelativeLayout  xmlns:android ="http://schemas.android.com/apk/res/android"

    android:orientation ="vertical"  android:layout_width ="match_parent"

    android:layout_height ="match_parent" >      < io.vov.vitamio.widget.VideoView

         android:id ="@+id/surface_view"  android:layout_width ="match_parent"

        android:layout_height ="match_parent"  android:layout_centerHorizontal ="true"

        android:layout_centerVertical ="true"   />      < FrameLayout  android:id ="@+id/operation_volume_brightness"

        android:visibility ="invisible"  android:layout_centerInParent ="true"

        android:layout_width ="wrap_content"  android:layout_height ="wrap_content"

        android:background ="#00000000"  android:orientation ="horizontal"

        android:padding ="0dip" >          < ImageView  android:id ="@+id/operation_bg"

            android:layout_gravity ="center"  android:src ="@drawable/video_volumn_bg"

            android:layout_width ="wrap_content"  android:layout_height ="wrap_content"   />          < FrameLayout  android:layout_gravity ="bottom|center_horizontal"

            android:layout_width ="wrap_content"  android:layout_height ="wrap_content"

            android:paddingBottom ="25dip" >              < ImageView  android:id ="@+id/operation_full"

                android:layout_gravity ="left"  android:src ="@drawable/video_num_bg"

                android:layout_width ="94dip"  android:layout_height ="wrap_content"   />              < ImageView  android:id ="@+id/operation_percent"

                android:layout_gravity ="left"  android:src ="@drawable/video_num_front"

                android:layout_width ="0dip"  android:layout_height ="wrap_content"

                android:scaleType ="matrix"   />          </ FrameLayout >      </ FrameLayout >

     /**

     * 

     * Android万能播放器

     * 

     *  @author  农民伯伯

     *  @version  2012-5-22

     * 

      */      public  class VideoViewDemo  extends Activity {               private String path = Environment.getExternalStorageDirectory()                 + "/Moon.mp4";          private VideoView mVideoView;          private View mVolumeBrightnessLayout;          private ImageView mOperationBg;          private ImageView mOperationPercent;          private AudioManager mAudioManager;          /**  最大声音  */          private  int mMaxVolume;          /**  当前声音  */          private  int mVolume = -1;          /**  当前亮度  */          private  float mBrightness = -1f;          /**  当前缩放模式  */          private  int mLayout = VideoView.VIDEO_LAYOUT_ZOOM;          private GestureDetector mGestureDetector;          private MediaController mMediaController;              @Override          public  void onCreate(Bundle icicle) {              super.onCreate(icicle);             setContentView(R.layout.videoview);             mVideoView = (VideoView) findViewById(R.id.surface_view);             mVolumeBrightnessLayout = findViewById(R.id.operation_volume_brightness);             mOperationBg = (ImageView) findViewById(R.id.operation_bg);             mOperationPercent = (ImageView) findViewById(R.id.operation_percent);                  mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);             mMaxVolume = mAudioManager                     .getStreamMaxVolume(AudioManager.STREAM_MUSIC);             mVideoView.setVideoPath(path);             mMediaController =  new MediaController( this);             mVideoView.setMediaController(mMediaController);             mVideoView.requestFocus();                  mGestureDetector =  new GestureDetector( this,  new MyGestureListener());         }              @Override          public  boolean onTouchEvent(MotionEvent event) {              if (mGestureDetector.onTouchEvent(event))                  return  true;                   //  处理手势结束

             switch (event.getAction() & MotionEvent.ACTION_MASK) {              case MotionEvent.ACTION_UP:                 endGesture();                  break;             }                   return  super.onTouchEvent(event);         }               /**  手势结束  */          private  void endGesture() {             mVolume = -1;             mBrightness = -1f;                   //  隐藏

            mDismissHandler.removeMessages(0);             mDismissHandler.sendEmptyMessageDelayed(0, 500);         }               private  class MyGestureListener  extends SimpleOnGestureListener {                   /**  双击  */             @Override              public  boolean onDoubleTap(MotionEvent e) {                  if (mLayout == VideoView.VIDEO_LAYOUT_ZOOM)                     mLayout = VideoView.VIDEO_LAYOUT_ORIGIN;                  else                     mLayout++;                  if (mVideoView !=  null)                     mVideoView.setVideoLayout(mLayout, 0);                  return  true;             }                   /**  滑动  */             @Override              public  boolean onScroll(MotionEvent e1, MotionEvent e2,                      float distanceX,  float distanceY) {                  float mOldX = e1.getX(), mOldY = e1.getY();                  int y = ( int) e2.getRawY();                 Display disp = getWindowManager().getDefaultDisplay();                  int windowWidth = disp.getWidth();                  int windowHeight = disp.getHeight();                       if (mOldX > windowWidth * 4.0 / 5) //  右边滑动

                    onVolumeSlide((mOldY - y) / windowHeight);                  else  if (mOldX < windowWidth / 5.0) //  左边滑动

                    onBrightnessSlide((mOldY - y) / windowHeight);                       return  super.onScroll(e1, e2, distanceX, distanceY);             }         }               /**  定时隐藏  */          private Handler mDismissHandler =  new Handler() {             @Override              public  void handleMessage(Message msg) {                 mVolumeBrightnessLayout.setVisibility(View.GONE);             }         };               /**

         * 滑动改变声音大小

         * 

         *  @param  percent

          */          private  void onVolumeSlide( float percent) {              if (mVolume == -1) {                 mVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);                  if (mVolume < 0)                     mVolume = 0;                       //  显示

                mOperationBg.setImageResource(R.drawable.video_volumn_bg);                 mVolumeBrightnessLayout.setVisibility(View.VISIBLE);             }                   int index = ( int) (percent * mMaxVolume) + mVolume;              if (index > mMaxVolume)                 index = mMaxVolume;              else  if (index < 0)                 index = 0;                   //  变更声音

            mAudioManager.setStreamVolume(AudioManager.STREAM_MUSIC, index, 0);                   //  变更进度条

            ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams();             lp.width = findViewById(R.id.operation_full).getLayoutParams().width                     * index / mMaxVolume;             mOperationPercent.setLayoutParams(lp);         }               /**

         * 滑动改变亮度

         * 

         *  @param  percent

          */          private  void onBrightnessSlide( float percent) {              if (mBrightness < 0) {                 mBrightness = getWindow().getAttributes().screenBrightness;                  if (mBrightness <= 0.00f)                     mBrightness = 0.50f;                  if (mBrightness < 0.01f)                     mBrightness = 0.01f;                       //  显示

                mOperationBg.setImageResource(R.drawable.video_brightness_bg);                 mVolumeBrightnessLayout.setVisibility(View.VISIBLE);             }             WindowManager.LayoutParams lpa = getWindow().getAttributes();             lpa.screenBrightness = mBrightness + percent;              if (lpa.screenBrightness > 1.0f)                 lpa.screenBrightness = 1.0f;              else  if (lpa.screenBrightness < 0.01f)                 lpa.screenBrightness = 0.01f;             getWindow().setAttributes(lpa);                  ViewGroup.LayoutParams lp = mOperationPercent.getLayoutParams();             lp.width = ( int) (findViewById(R.id.operation_full).getLayoutParams().width * lpa.screenBrightness);             mOperationPercent.setLayoutParams(lp);         }              @Override          public  void onConfigurationChanged(Configuration newConfig) {              if (mVideoView !=  null)                 mVideoView.setVideoLayout(mLayout, 0);              super.onConfigurationChanged(newConfig);         }