Android 屏蔽 Home 按键

屏蔽 Home 按键，至少做到两点：

1） 重写 onAttachedToWindow

2）重写 onKeyDown

@Override
    public void onAttachedToWindow() {
        super.onAttachedToWindow();
        getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
        Log.d("mark", "onAttachedToWindow-- ");
    }  

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (event.getAction() == KeyEvent.ACTION_DOWN) {
            switch (keyCode) {
                case KeyEvent.KEYCODE_HOME:
                    Toast.makeText(this, "home key is pressed", 1).show();
                    break;
            }
        }
        return super.onKeyDown(keyCode, event);
    }  

http://blog.csdn.net/androidbluetooth/article/details/7396665