未显示片段中的菜单项

Question

我试图将搜索按钮添加为活动中带有工具栏的片段中的菜单项。 这是menu.xml文件。

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
    android:id="@+id/action_search"
    android:icon="@drawable/ic_search_white_24px"
    android:title="Search"
    android:orderInCategory="1"
    app:showAsAction="always|collapseActionView" />

在我的片段类中，我添加了setHasOptionsMenu(true); 在onCreateView方法中。 这是片段类中的onCreateOptionsMenu方法。

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    inflater.inflate(R.menu.menu, menu);
    mSearchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
    mSearchView.setOnQueryTextListener(this);
    super.onCreateOptionsMenu(menu, inflater);
}

到处搜索并尝试了所有操作，但搜索按钮从未显示。 我可能会缺少什么？

Answer 1

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

<item android:id="@+id/action_search"
    android:title="Search"
    android:icon="@drawable/abc_ic_search_api_mtrl_alpha"
    app:showAsAction="ifRoom|collapseActionView"
    app:actionViewClass="android.support.v7.widget.SearchView" />

</menu>

活动中

  @Override
public boolean onCreateOptionsMenu(Menu menu) {

    getMenuInflater().inflate(R.menu.menu_dash_board, menu);
    // Retrieve the SearchView and plug it into SearchManager
    final SearchView searchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
    SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
    searchView.setQueryHint("Search");

    return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
    final SearchView searchView = (SearchView) MenuItemCompat
            .getActionView(menu.findItem(R.id.action_search));
}

Answer 2

而不是对onPrepareOptionsMenu 。

@Override
public void onPrepareOptionsMenu(Menu menu) {
    MenuItem mSearchMenuItem = menu.findItem(R.id.mi_search);
    SearchView searchView = (SearchView) mSearchMenuItem.getActionView();
}

Answer 3

使用下面的代码。

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

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
   inflater.inflate(R.menu.menu, menu);
    mSearchView = (SearchView) MenuItemCompat.getActionView(menu.findItem(R.id.action_search));
    mSearchView.setOnQueryTextListener(this);
    super.onCreateOptionsMenu(menu, inflater);
}

Answer 4

您的菜单

<menu 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools" 
     tools:context=".MainActivity">

<item
        android:id="@+id/action_search"
        android:title="@string/search"
        android:orderInCategory="2"
        android:actionLayout="@layout/seacrhlayout"
        android:icon="@drawable/cart"
        app:showAsAction="always"
        />
</menu>

您的动作布局

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clickable="true"
    android:padding="5dp">

    <RelativeLayout
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_gravity="center_horizontal"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="10dp"
        android:id="@+id/main">
        <ImageView
            android:id="@+id/seacrh"
            android:src="@drawable/search"
            android:layout_width="14dp"
            android:layout_height="14dp"
            android:layout_centerInParent="true"
            />
    </RelativeLayout>
</FrameLayout>

您的oncreatemenu选项

@Override
    public boolean onCreateOptionsMenu(Menu menu)
    {

            getMenuInflater().inflate(R.menu.main_menu, menu);
            MenuItem item = menu.findItem(R.id.action_search);
            MenuItemCompat.setActionView(item, R.layout.seacrhlayout);
            View view = (View) MenuItemCompat.getActionView(item);
            ImageView search=view.findViewById(R.id.seacrh);
            //do whatever you want to don on search button

        return true;
    }

// please check your tool bar color and the icon color of the search. may be due to color its not visible