效果如圖：

實現步驟：

1.給videoview新增ontouch監聽，this是所在的activity：

videoView.setOnTouchListener(this);

2.重寫ontouch方法：

@Override
    public boolean onTouch(View v, MotionEvent event) {
        if(v.getId() == R.id.video_view) {
            return mGesDetector.onTouchEvent(event);
        }
        return super.onTouchEvent(event);
    }
 

3.寫一個內部類實現

GestureDetector.SimpleOnGestureListener

介面：

/*
    *
    * 手勢監聽類
    * */
    class MyGestureListener extends GestureDetector.SimpleOnGestureListener {
        public MyGestureListener() {
            super();
        }
        @Override
        public boolean onDoubleTap(MotionEvent e) {
            if (screenState == LAND_SCREEN) {
                convertToPortScreen();
            } else if (screenState == PORT_SCREEN) {
                convertToLandScreen();
            }
            return true;
        }
}
 

4.使用手勢監聽類：

private GestureDetector mGesDetector;
mGesDetector = new GestureDetector(this,new MyGestureListener());
mGesDetector.setOnDoubleTapListener(new MyGestureListener());

走完這四步，對videoview的雙擊事件監聽已經寫完了。接下來奉上橫豎屏切換的程式碼：

private void convertToPortScreen(){
        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);//設定videoView豎屏播放
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, ToolUtils.dip2px(StudyWithExerciseActivity.this, 198f));
        params.setMargins(ToolUtils.dip2px(StudyWithExerciseActivity.this,12),ToolUtils.dip2px(StudyWithExerciseActivity.this,15),
                ToolUtils.dip2px(StudyWithExerciseActivity.this,12),ToolUtils.dip2px(StudyWithExerciseActivity.this,14));
        //params.addRule(RelativeLayout.CENTER_IN_PARENT);
        videoView.setLayoutParams(params);
        screenState = PORT_SCREEN;
    }
 

以上是切換成豎屏時走的程式碼。

private void convertToLandScreen(){
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);//設定videoView全屏播放
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);//設定videoView橫屏播放
        WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
        android.view.Display display = wm.getDefaultDisplay();
        Point point = new Point();
        int API_LEVEL = android.os.Build.VERSION.SDK_INT;
        if(API_LEVEL >= 17){
            display.getRealSize(point);
        }else{
            display.getSize(point);
        }
        int height = point.y;
        int width = point.x;
        Log.i(TAG,"screenHeight = "+height+" ; screenWidth = "+width);
        RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) videoView
                .getLayoutParams(); // 取控當前的佈局引數
        layoutParams.height = height;
        layoutParams.width = width;
        layoutParams.setMargins(0,0,0,0);
        videoView.setLayoutParams(layoutParams);

        screenState = LAND_SCREEN;
    }

以上為切換成橫屏時走的程式碼。

注意：清單檔案中要在該activity的便籤中加入

android:configChanges="orientation|screenSize|keyboardHidden"

否則會報錯。

好了，到這裡VideoView雙擊全屏的效果就實現了。如果實際應用中遇到什麼問題給我留言，會盡快回復。

歡迎參觀博主其他部落格。

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