安卓：我怎样才能设置一个监听器的菜单按钮？ [英] Android: How can I set a listener to the MenuButton?

问题描述

我希望做一个自定义操作时，手机上的菜单pressing 按钮。

I want to do a custom action when pressing on the Menu button on the phone.

是否有可能在按钮上设置onClickListener（或类似），如果是这样，怎么样？

Is it possible to set an onClickListener (or similar) on the button and if so, how?

onCreateOptionsMenu 只调用了第一次按钮pressed - 我已经试过这种

onCreateOptionsMenu is only called the first time the button is pressed - I've already tried this.

推荐答案

通常你不应该重写菜单行为，用户所期望出现的菜单，但是你可以使用的东西沿着这些路线：

Usually you shouldn't override MENU behavior as users expect menu to appear, however you can use something along these lines:

/* (non-Javadoc)
 * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent)
 */
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ( keyCode == KeyEvent.KEYCODE_MENU ) {
        Log.d(TAG, "MENU pressed");
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

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