这事件被称为当用户点击右键菜单中禁用的项目？ [英] Which event is called when a user click on the disabled item in context menu?

问题描述

我有按钮，用于显示快捷菜单。在菜单中有几个项目。（其中一些被禁止 - 的setEnabled（假））

I have button, which displays a Context menu. In the menu are few items (some of them are disabled - setEnabled(false)).

这事件被调用时的禁用的项目，用户点击？这不是onContextItemSelected也不onContextMenuClosed。但菜单后，点击关闭。

Which event is called when a user click on the disabled item? It's not onContextItemSelected nor onContextMenuClosed. But the menu is closed after the click.

感谢您的帮助。

推荐答案

我的老师协商后，我已经解决了这个问题。你可以检查你的窗口的焦点，然后再决定是否在上下文菜单已关闭或没有。

After consultation with my teacher, I've solved the problem. You can check the focus of your window, and then decide if the context menu was closed or not.

所以，你必须：

1. 使用下面的code。
2. 呼叫在prepareContextMenu（）方法，当你创建上下文菜单。

1. Use the code below.
2. Call onPrepareContextMenu() method when you create the context menu.

在code：

public class MyActivity extends android.app.Activity {

    private boolean contextMenuDisplayed = false;

    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);

        if(hasFocus && this.contextMenuDisplayed) {
            this.contextMenuDisplayed = false;
            this.onContextMenuClosed(null);
        }
    }

    public void onPrepareContextMenu() {
        this.contextMenuDisplayed  = true;
    }

}

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