捕获Home键按下
在Activity界面重写onAttachedToWindow方法
@Override public void onAttachedToWindow() {this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD); super.onAttachedToWindow();}switch (keyCode) { case KeyEvent.KEYCODE_HOME: Log.i(TAG,"KEYCODE_HOME"); Toast.makeText(Test1Activity.this, "你按下了Home键", Toast.LENGTH_SHORT).show(); return true;