android 屏蔽Home鍵, 屏蔽BACK鍵，MENU鍵（親自實踐有效）

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



2、攔截/屏蔽返回鍵、MENU鍵實現代碼
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if(keyCode == KeyEvent.KEYCODE_BACK) { //監控/攔截/屏蔽返回鍵
        return true;
    } else if(keyCode == KeyEvent.KEYCODE_MENU) {//MENU鍵
        //監控/攔截菜單鍵
         return true;
    }    
return super.onKeyDown(keyCode, event);
}