res/layout/multi_pick_activity.xml

<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/multi_pick_frame"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/multi_pick_top_divider"
        android:layout_width="match_parent"
        android:layout_height="2dp"
        android:background="@color/divider_line_color"
        android:elevation="@dimen/multi_pick_top_divider_elevation"
        android:visibility="gone" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
        <FrameLayout
            android:id="@+id/pick_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/divider_line_color" />

    <TextView
        android:id="@+id/btn_ok"
        android:layout_width="match_parent"
        android:layout_height="@dimen/multi_pick_linear_layout_for_button_height"
        android:layout_gravity="bottom"
        android:enabled="false"
        android:background="?android:attr/selectableItemBackgroundBorderless"
        android:fontFamily="sans-serif-medium"
        android:gravity="center"
        android:text="@string/btn_ok"
        android:textSize="@dimen/contacts_text_size" />

</LinearLayout>