CODEWITHSUNDEEP
androidspinner
Learn2Code
Learn2Code

Reputation: 2280

Add a spinner to the Toolbar for a specific Fragment only

I am trying to add a spinner to a fragment, but for only one out of three total fragments in my application. My application also has a navigation drawer.

I have removed the default actionbar and added a toolbar as such in the activity_main.xml file:

android.support.v4.widget.DrawerLayout
    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"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity"
    tools:openDrawer="start" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <android.support.v7.widget.Toolbar
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/colorPrimary"
        android:id="@+id/toolbar"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
        android:elevation="4dp" />

    <FrameLayout
        android:id="@+id/fragment_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</LinearLayout>

<android.support.design.widget.NavigationView
    android:id="@+id/nav_view"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    app:headerLayout="@layout/nav_header_main"
    app:menu="@menu/activity_main_drawer" />

</android.support.v4.widget.DrawerLayout>

I add the toolbar in the MainActivity.java class as such:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    etc...

How do I go about adding a Spinner for one particular fragment and not all three?

Upvotes: 1

Views: 819

Answers (1)

JiajiaGu
JiajiaGu

Reputation: 1339

  1. Do setHasOptionsMenu(true) in your Fragment which need to show the spinner.

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

  2. Add menu item.

    <menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/spinner"
        android:title="ActionBar Spinner"
        app:actionViewClass="android.widget.Spinner"
        android:background="#ff00"
        app:showAsAction="always" />
</menu>

  3. Then inflate menu in onCreateOptionsMenu method, refer to this:

    @Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    super.onCreateOptionsMenu(menu,inflater);
    inflater.inflate(R.menu.spinner, menu);
    MenuItem item = menu.findItem(R.id.spinner);
    Spinner spinner = (Spinner) item.getActionView();
    //.....
}

Upvotes: 0

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