在片段的Andr​​oid选项菜单 [英] Android Options Menu in Fragment

问题描述

我想一个项目从一组片段添加到选项菜单。

I am trying to add an item to the options menu from a group of fragments.

我创建了一个新的 MenuFragment 类和扩展这个，因为我希望包含在菜单项的片段这里是code：

I have created a new MenuFragment class and extended this for the fragments I wish to include the menu item in. Here is the code:

public class MenuFragment extends Fragment {

    MenuItem fav;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        fav = menu.add("add");
        fav.setIcon(R.drawable.btn_star_big_off);
    }
}

由于某种原因， onCreateOptionsMenu 似乎没有运行。

任何帮助将是AP preciated。

Any help would be appreciated.

推荐答案

你有没有所谓的超级方法？

Have you called the super method?

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setHasOptionsMenu(true);
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    // TODO Add your menu entries here
    super.onCreateOptionsMenu(menu, inflater);
}

在code将日志语句，看是否该方法不会被调用，或者如果菜单不被修正你的code。

Put log statements in the code to see if the method is not being called or if the menu is not being amended by your code.

此外，还要确保您所呼叫 SetHasOptionsMenu 在的onCreate 来通知，它应该参与选项菜单操作的片段。

Also ensure you are calling SetHasOptionsMenu in onCreate to notify the fragment that it should participate in options menu handling.

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