open-keychain/OpenKeychain/src/main/res/layout-v11/safe_slinger_activity.xml

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:paddingLeft="16dp"
        android:paddingRight="16dp">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="4dp"
            android:layout_marginTop="14dp"
            android:text="bla" />

        <NumberPicker
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/safe_slinger_picker" />

        <View
            android:layout_width="match_parent"
            android:layout_height="1dip"
            android:background="?android:attr/listDivider" />

        <LinearLayout
            android:id="@+id/safe_slinger_button"
            android:layout_width="match_parent"
            android:layout_height="?android:attr/listPreferredItemHeight"
            android:clickable="true"
            android:paddingRight="4dp"
            style="@style/SelectableItem"
            android:orientation="horizontal">

            <TextView
                android:paddingLeft="8dp"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:layout_width="0dip"
                android:layout_height="match_parent"
                android:text="Start exchange"
                android:layout_weight="1"
                android:gravity="center_vertical" />

            <!-- separate ImageView required for recoloring -->
            <ImageView
                android:id="@+id/safe_slinger_button_image"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:padding="8dp"
                android:src="@drawable/ic_action_safeslinger"
                android:layout_gravity="center_vertical" />

        </LinearLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1dip"
            android:layout_marginBottom="4dp"
            android:background="?android:attr/listDivider" />

    </LinearLayout>
</ScrollView>