Android - Overflow Menu and Back Button not showing in Collapsing Toolbar

Question

I'm trying to implement features from the new Design Support Library to create a parallax scrolling toolbar which looks similar to the new material design WhatsApp profile pages. However, I can't get the overflow menu and back button to show in the top corners.

I have tried using the following methods to display the back button, but none of them works.

    getSupportActionBar().setDisplayHomeAsUpEnabled(true);     getSupportActionBar().setHomeButtonEnabled(true);     getSupportActionBar().setDisplayShowHomeEnabled(true); 

And overwriting the onCreateOptionsMenu method for the overflow menu also didn't work.

Does anyone know how to add these toolbar icons to a CollapsingToolbar from the Design Support Library? Below is my layout xml for the activity. Thanks!

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:id="@+id/main_content" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true">  <android.support.design.widget.AppBarLayout     android:id="@+id/appbar"     android:layout_width="match_parent"     android:layout_height="256dp"     android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"     android:fitsSystemWindows="true">      <android.support.design.widget.CollapsingToolbarLayout         android:id="@+id/collapsing_toolbar"         android:layout_width="match_parent"         android:layout_height="match_parent"         app:layout_scrollFlags="scroll|exitUntilCollapsed"         android:fitsSystemWindows="true"         app:contentScrim="@color/primary"         app:expandedTitleMarginStart="48dp"         app:expandedTitleMarginEnd="64dp">          <ImageView             android:id="@+id/backdrop"             android:layout_width="match_parent"             android:layout_height="match_parent"             android:src="@drawable/headerbg"             android:scaleType="centerCrop"             android:fitsSystemWindows="true"             app:layout_collapseMode="parallax" />          <android.support.v7.widget.Toolbar             android:id="@+id/toolbar"             android:layout_width="match_parent"             android:layout_height="?attr/actionBarSize"             app:popupTheme="@style/Theme.AppCompat.Light.DarkActionBar"             app:layout_collapseMode="pin" />      </android.support.design.widget.CollapsingToolbarLayout>  </android.support.design.widget.AppBarLayout>  <android.support.v4.widget.NestedScrollView     android:layout_width="match_parent"     android:layout_height="match_parent"     android:layout_gravity="fill_vertical"     android:layout_marginBottom="?attr/actionBarSize"     app:layout_behavior="@string/appbar_scrolling_view_behavior">  </android.support.v4.widget.NestedScrollView> 

Answer 1

I had the same issue, none from existing answers have helped me, surprising fix of my problem was in question description.

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Solution for AppCompat Activity

So working collapsing toolbar with back button needs those few lines in controller onCreate method:

//change id to Your id toolbar = (Toolbar) findViewById(R.id.toolbar);  setSupportActionBar(toolbar);  //this line shows back button getSupportActionBar().setDisplayHomeAsUpEnabled(true);  

Manifest of this activity ( notice parentActivityName attribute ):

<activity   android:name=".SomeActivity"   android:parentActivityName=".MainActivity"   android:theme="@style/AppTheme.NoActionBar"/> 

Template part:

<android.support.design.widget.AppBarLayout     android:layout_width="match_parent"     android:layout_height="wrap_content"     android:fitsSystemWindows="true"     android:theme="@style/AppTheme.AppBarOverlay">      <android.support.design.widget.CollapsingToolbarLayout         android:id="@+id/collapsing_toolbar"         android:layout_width="match_parent"         android:layout_height="200dp"         app:layout_scrollFlags="scroll|exitUntilCollapsed"         app:contentScrim="@color/colorPrimary"         android:fitsSystemWindows="true"         app:expandedTitleGravity="center_horizontal"         >          <android.support.v7.widget.Toolbar             android:id="@+id/toolbar"             android:layout_width="match_parent"             android:layout_height="?attr/actionBarSize"             android:background="@android:color/transparent"             app:popupTheme="@style/ThemeOverlay.AppCompat.Light"             app:layout_collapseMode="pin"             />      </android.support.design.widget.CollapsingToolbarLayout>  </android.support.design.widget.AppBarLayout> 

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Alternative solution ( also AppCompat Activity )

Controller onCreate method:

toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar);  toolbar.setNavigationIcon(android.support.v7.appcompat.R.drawable.abc_ic_ab_back_material); toolbar.setNavigationOnClickListener(new View.OnClickListener() {         @Override         public void onClick(View view) {              onBackPressed();         } }); 

This approach uses the same manifest and template presented in first solution.