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data_exchange_round.xml

<?xml version="1.0" encoding="utf-8"?>

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

<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/data_exchange_intro"
        android:textAppearance="@style/TextAppearance.AppCompat.Medium"
        android:layout_marginStart="30dp"
        android:layout_marginEnd="30dp"
        android:layout_marginTop="30dp"
        android:gravity="center"
        android:id="@+id/text"/>

<TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignEnd="@+id/text"
        android:layout_alignStart="@+id/text"
        android:textAppearance="@style/TextAppearance.AppCompat.Title"
        android:gravity="center"
        android:layout_centerInParent="true"
        android:id="@+id/message"/>

</RelativeLayout>