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ad_simple_custom_template.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#CCFFFF"
    android:minHeight="50dp"
    android:orientation="vertical"
    android:layout_margin="8dp">

<TextView
        android:id="@+id/simplecustom_headline"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:gravity="center"
        android:textAppearance="?android:attr/textAppearanceLarge" />

<FrameLayout
        android:id="@+id/simplecustom_media_placeholder"
        android:layout_width="match_parent"
        android:layout_height="175dp"
        android:layout_gravity="center"
        android:layout_marginTop="16dp" />

<TextView
        android:id="@+id/simplecustom_caption"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:layout_marginTop="8dp"
        android:gravity="center"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="#888888"
        android:textStyle="italic" />

</LinearLayout>