菜单未显示在片段中

时间:2018-09-13 11:04:30

标签: android android-fragments menu

something like this m trying to achieve

我的要求很简单,我想打开片段中的menuItem列表。因此,我在菜单内部创建了菜单XML,并尝试在Fragment的 onCreateOptionsMenu 方法内部进行充气,但不幸的是没有任何显示。

这里是:

myFragment.java

public static MoreFragment newInstance() {
        return new MoreFragment();
    }


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

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        menu.clear();
        inflater.inflate(R.menu.more_drawer, menu);

    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        setHasOptionsMenu(true);
        View v = inflater.inflate(R.layout.fragment_more, container, false);

        setUp(v);

        return v;
    }

在这里, more_drawer.xml:

 <?xml version="1.0" encoding="utf-8"?>
    <menu xmlns:android="http://schemas.android.com/apk/res/android">
        <item
            android:id="@+id/nav_busTracking"
            android:icon="@drawable/ic_more_drawer_bus_tracking"
            android:title="Bus Tracking" />
        <item
            android:id="@+id/nav_kidsWallet"
            android:icon="@drawable/ic_more_drawer_kids_wallet"
            android:title="Kids' Wallet" />

        <item
            android:id="@+id/nav_circlals"
            android:icon="@drawable/ic_more_drawer_circulars"
            android:title="Circulars" />

        <item
            android:id="@+id/nav_message"
            android:icon="@drawable/ic_more_drawer_messages"
            android:title="Messages" />

        <item
            android:id="@+id/nav_accountSettingd"
            android:icon="@drawable/ic_more_drawer_account_settings"
            android:title="@string/account_settings" />

        <item
            android:id="@+id/nav_logout"
            android:icon="@drawable/ic_more_drawer_logout"
            android:title="Log Out" />

    </menu>

fragment.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">


</RelativeLayout>

我尝试将 setHasOptionsMenu(true)放在onCreate()和onCreateView()中,但是什么也没显示。

我尝试调试,发现未调用 onCreateOptionsMenu()。我尝试了为该问题提供的所有解决方案,但没有任何帮助。

我在做什么错了?

2 个答案:

答案 0 :(得分:0)

更改此:

@Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        menu.clear();
        inflater.inflate(R.menu.more_drawer, menu);

    }

收件人:

@Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.more_drawer, menu);
        super.onCreateOptionsMenu(menu, inflater);

    }

然后在视图膨胀创建后使用:setHasOptionsMenu(true);

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onActivityCreated(savedInstanceState);
    setHasOptionsMenu(true);
}

答案 1 :(得分:0)

您检查了清单文件吗?

确保为活动选择的主题包括操作栏。 例如:android:theme =“ @ style / Theme.AppCompat”>