android Home键 屏蔽，捕获，修改

开发过程中相信大家都有碰到因为不能捕获Home键而烦恼，现在终于有办法了，在Level5以上(包含)中，Activity类中有如下方法:
public void onAttachedToWindow ()
Since: API Level 5
Called when the main window associated with the activity has been attached to the window manager. See View.onAttachedToWindow() for more information.
See Also
* onAttachedToWindow()
private boolean catchHomeKey = false;
@Override
public void onAttachedToWindow() {
// TODO Auto-generated method stub
if(catchHomeKey) {
this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
}
super.onAttachedToWindow();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if(keyCode == KeyEvent.KEYCODE_HOME) {
Log.e(TAG, "Home key down");
}
return super.onKeyDown(keyCode, event);
}
复制代码
重写Activity中的onAttachedToWindow方法，设置Type，就能捕获到Home键。
当不需要捕获时，删除setType这一行就OK。