Detail Activity layout - Sticky scroll view

activity_detail.xml

<com.emilsjolander.components.StickyScrollViewItems.StickyScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/scrollView"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <ImageView
            android:id="@+id/imageView"
            android:layout_width="match_parent"
            android:layout_height="196dp"
            android:layout_alignParentTop="true"
            android:scaleType="centerCrop"
            android:src="@drawable/back" />

        <android.support.design.widget.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="150dp"
            android:layout_below="@id/imageView"
            android:background="@color/colorPrimary"
            android:fitsSystemWindows="true"
            android:tag="sticky"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:contentInsetLeft="72dp"
                app:contentInsetStart="72dp"
                app:layout_collapseMode="pin"
                app:layout_scrollFlags="scroll|enterAlways"
                app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                app:theme="@style/toolbar_theme" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="72dp"
                android:layout_marginRight="16dp"
                android:text="@string/event_title"
                android:textColor="@color/colorTextAppbar"
                android:textSize="18sp"
                android:textStyle="bold" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="72dp"
                android:layout_marginRight="16dp"
                android:text="@string/event_time"
                android:textColor="@color/colorTextAppbar"
                android:textSize="14sp" />

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

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/appbar"
            android:orientation="vertical"
            android:paddingRight="16dp"
            android:paddingTop="16dp">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="32dp"
                android:layout_marginLeft="72dp"
                android:lineSpacingExtra="4dp"
                android:text="@string/longText1"
                android:textColor="@color/colorText" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="32dp"
                android:layout_marginLeft="72dp"
                android:lineSpacingExtra="4dp"
                android:text="@string/longText2"
                android:textColor="@color/colorText" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginLeft="72dp"
                android:text="@string/titleSpeakers"
                android:textColor="@color/colorTextAppbar"
                android:textStyle="bold" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="72dp"
                android:orientation="horizontal">

                <ImageView
                    android:layout_width="40dp"
                    android:layout_height="40dp"
                    android:layout_marginLeft="16dp"
                    android:layout_marginRight="16dp"
                    android:scaleType="centerCrop"
                    android:src="@drawable/avatar" />

                <LinearLayout
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:orientation="vertical">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:lineSpacingExtra="4dp"
                        android:text="@string/speakerName"
                        android:textColor="@color/colorText"
                        android:textStyle="bold" />

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:lineSpacingExtra="4dp"
                        android:text="@string/speakerBio"
                        android:textColor="@color/colorText" />

                </LinearLayout>
            </LinearLayout>
        </LinearLayout>
    </RelativeLayout>
</com.emilsjolander.components.StickyScrollViewItems.StickyScrollView>