you can achieve that without `Collapsing Toolbar`, for example you can make your toolbar hide if you scroll down with some code like below:
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ddd"
tools:context=".ControllerAdding.ControllerPickerActivity"
>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay"
android:fitsSystemWindows="true">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#df1b39"
app:contentInsetStart="0dp"
app:titleTextColor="@color/pureWhite"
style="@style/RobotoBoldTextAppearance"
app:layout_scrollFlags="scroll|enterAlways">
<TextView
android:id="@+id/textView6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Products List"/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
be sure to add ` app:layout_scrollFlags="scroll|enterAlways"` in your Toolbar because if you don't and then you add a RecyclerView here, that Recycler won't be Scrollable.
this is a tested code that i used for my own app, so if you see some styling or ... its because of that.
change this..
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:elevation="15dp"
android:layout_width="match_parent"
app:logo="@drawable/action_bar_logo"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
the popupTheme makes the difference and it is what you were looking for..
this is my full xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".AddUser">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:elevation="15dp"
android:layout_width="match_parent"
app:logo="@drawable/action_bar_logo"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_add_user" />
</android.support.design.widget.CoordinatorLayout>
Good luck!
