Android 捕捉HOME鍵

    // 屏蔽Home鍵  
       @Override  
       public void onAttachedToWindow() {  
            this.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);  
            super.onAttachedToWindow();  
       }  

    // 捕獲home鍵  
       @Override  
       public boolean onKeyDown(int keyCode, KeyEvent event) {  
            switch (keyCode) {  
            case KeyEvent.KEYCODE_HOME:  
                 finish();  
            }  
            return super.onKeyDown(keyCode, event);  
       }