android双击视频全屏

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事情：

双击视频的view，view全屏。再次双击恢复原状态。主要包含以下功能点：双击事件监听，视图动态改变layoutParams

解决：

双击监听：

class Doubleclick extends GestureDetector.SimpleOnGestureListener {@Overridepublic boolean onSingleTapConfirmed(MotionEvent e) {return false;}@Overridepublic boolean onDoubleTap(MotionEvent e) {if (titleBar.getVisibility() == View.VISIBLE) {titleBar.setVisibility(View.GONE);onlineContent.setVisibility(View.GONE);LinearLayout.LayoutParams out = (LinearLayout.LayoutParams) onlineCastContent.getLayoutParams();out.height = LinearLayout.LayoutParams.MATCH_PARENT;out.setMargins(0, 0, 0, 0);onlineCastContent.setLayoutParams(out);}else{titleBar.setVisibility(View.VISIBLE);onlineContent.setVisibility(View.VISIBLE);LinearLayout.LayoutParams out = (LinearLayout.LayoutParams) onlineCastContent.getLayoutParams();out.height = 453;out.setMargins(15, 15, 15, 15);onlineCastContent.setLayoutParams(out);}return false;}@Overridepublic boolean onDoubleTapEvent(MotionEvent e) {return false;}}

给activity添加手势监听。

@Overridepublic boolean onTouchEvent(MotionEvent event) {return mGestureDetector.onTouchEvent(event);}

mGestureDetector 定义与初始化

private GestureDetector mGestureDetector;private RelativeLayout onlineContent;private RelativeLayout onlineCastContent;

@Overrideprotected void onCreate(Bundle savedInstanceState) {mGestureDetector = new GestureDetector(this, new Doubleclick());}

注意：

在LinearLayout.LayoutParams out = (LinearLayout.LayoutParams) onlineCastContent.getLayoutParams(); 获取时，需要看这个视图的上一层是LinearLayout、还是RelativeLayout。

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