chinwag-android/app/src/main/res/layout/activity_account.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"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/activity_account"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:theme="@style/AppTheme"
        android:layout_height="wrap_content">

        <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"
            app:contentScrim="?attr/toolbar_background_color"
            android:fitsSystemWindows="true"
            app:titleEnabled="false">

            <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:background="?attr/account_header_background_color">

                <ImageView
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:id="@+id/account_header"
                    android:scaleType="centerCrop"
                    app:layout_collapseMode="pin"
                    android:fitsSystemWindows="true"
                    android:adjustViewBounds="true" />

                <LinearLayout
                    android:orientation="vertical"
                    android:paddingTop="?attr/actionBarSize"
                    android:background="@drawable/account_header_gradient"
                    android:layout_width="match_parent"
                    app:layout_collapseMode="parallax"
                    android:layout_height="wrap_content">

                    <RelativeLayout
                        android:layout_width="match_parent"
                        android:paddingLeft="16dp"
                        android:paddingRight="16dp"
                        android:paddingTop="16dp"
                        android:layout_height="wrap_content">

                        <com.pkmmte.view.CircularImageView
                            android:layout_width="80dp"
                            android:layout_height="80dp"
                            android:layout_marginRight="10dp"
                            app:shadow="true"
                            android:id="@+id/account_avatar" />

                        <LinearLayout
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:orientation="vertical"
                            android:layout_centerVertical="true"
                            android:layout_toRightOf="@id/account_avatar">

                            <TextView
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:id="@+id/account_display_name"
                                android:textStyle="normal|bold"
                                android:textColor="?android:textColorPrimary"
                                android:textSize="18sp" />

                            <TextView
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:textColor="?android:textColorSecondary"
                                android:id="@+id/account_username" />

                        </LinearLayout>

                    </RelativeLayout>

                    <TextView
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:id="@+id/account_note"
                        android:textColor="?android:textColorTertiary"
                        android:padding="16dp"
                        android:paddingTop="10dp"/>
                </LinearLayout>
            </FrameLayout>

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="@android:color/transparent"
                android:layout_gravity="top"
                android:layout_alignParentTop="true"
                app:layout_collapseMode="pin" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/pager"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <android.support.design.widget.TabLayout
            android:id="@+id/tab_layout"
            app:tabBackground="?android:colorBackground"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <android.support.design.widget.TabItem
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

        </android.support.design.widget.TabLayout>

    </android.support.v4.view.ViewPager>

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

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/floating_btn"
        android:layout_width="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="16dp"
        android:layout_height="wrap_content"
        app:srcCompat="@drawable/ic_person_add_24dp"/>

</android.support.design.widget.CoordinatorLayout>