android中继承view的类中onKeyDown(int keyCode, KeyEvent event)和onKeyUp(int keyCode, KeyEvent event)事件没反应,在其构造函数中加上setFocusableInTouchMode(true);即可。android中继承view的类中onKeyDown(int keyCode, KeyEven
android中继承view的类中onKeyDown(int keyCode, KeyEvent event)和onKeyUp(int keyCode, KeyEvent event)事件没反应,在其构造函数中加上setFocusableInTouchMode(true);即可。android中继承view的类中onKeyDown(int keyCode, KeyEven