Android-捕获/抑制Home和EndCall按钮事件?

如果你曾经尝试在Android上编写一个储物柜应用程序,请确保你遇到了这个问题:

boolean mBackPressed = false;

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN) {
        switch (keyCode) {
        case KeyEvent.KEYCODE_BACK:
            mBackPressed = true;
            break;
        case KeyEvent.KEYCODE_MENU:
            if (mBackPressed)
                unLock();
            break;
        default:
            mBackPressed = false;
            showMessage();
            break;
        }
    }
    return true;
}

private void showMessage() {
    Toast.makeText(getBaseContext(), "Back + Menu", Toast.LENGTH_SHORT)
            .show();
}

private void unLock() {
    this.setResult(Activity.RESULT_OK);
    this.finish();
}

似乎onkeydown正在过滤掉除“back”和“menu”之外的所有键…
嗯,这不是真的! “主页”按钮仍将带您进入主屏幕,而“结束呼叫”按钮将运行本机储物柜应用程序!

伙计们也声称这是个问题:
How to listen from ENDCALL button
problem With Home Back screen button
Supressing Key presses in Activity, especially in Options Menu
Issue 4202: Feature Suggestion: permission for intercepting KEYCODE_CALL

你知道有什么方法可以阻止这两个按钮吗?
唯一的办法是(和往常一样) write in C ?