BarInsta/app/src/main/res/layout/activity_direct_messages.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.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:id="@+id/homeCoordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:animateLayoutChanges="true"
    android:fitsSystemWindows="true"
    tools:context=".activities.DirectMessagesActivity">

    <fragment
        android:id="@+id/direct_messages_nav_host_fragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        app:navGraph="@navigation/direct_messages_nav_graph"
        tools:ignore="FragmentTagUsage" />

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBarLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:liftOnScroll="true">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:id="@+id/collapsingToolbarLayout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:animateLayoutChanges="true"
            app:contentScrim="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways|exitUntilCollapsed|snap"
            app:scrimAnimationDuration="10">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin"
                app:layout_scrollFlags="scroll|exitUntilCollapsed">

                <TextView
                    android:id="@+id/toolbar_title"
                    style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:gravity="center_vertical"
                    android:text="@string/app_name" />

                <androidx.appcompat.widget.AppCompatImageView
                    android:id="@+id/dmInfo"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_gravity="center"
                    android:background="?selectableItemBackgroundBorderless"
                    android:clickable="true"
                    android:focusable="true"
                    android:paddingStart="4dp"
                    android:paddingLeft="4dp"
                    android:paddingTop="4dp"
                    android:paddingEnd="8dp"
                    android:paddingRight="8dp"
                    android:paddingBottom="4dp"
                    app:srcCompat="@drawable/ic_outline_info_24" />
            </androidx.appcompat.widget.Toolbar>
        </com.google.android.material.appbar.CollapsingToolbarLayout>
    </com.google.android.material.appbar.AppBarLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>