AndroidAPS/app/src/main/res/layout/activity_stats.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".activities.SurveyActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:background="@color/activity_title_background"
            android:orientation="horizontal"
            android:padding="5dp">

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:contentDescription="@string/carbs"
                app:srcCompat="@mipmap/ic_launcher" />

            <TextView
                android:id="@+id/header"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:layout_gravity="center"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:text="@string/statistics"
                android:textAlignment="center"
                android:textAppearance="?android:attr/textAppearanceLarge" />

        </RelativeLayout>

        <LinearLayout
            android:id="@+id/spacer"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="5dp" />

        <TextView
            android:id="@+id/stats_tdds"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:textAppearance="@style/TextAppearance.AppCompat.Medium" />

        <TextView
            android:id="@+id/stats_tir"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:textAppearance="@style/TextAppearance.AppCompat.Medium" />

        <TextView
            android:id="@+id/stats_activity"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="10dp"
            android:textAppearance="@style/TextAppearance.AppCompat.Medium" />

        <LinearLayout
            android:id="@+id/done_background"
            android:layout_width="match_parent"
            android:layout_height="56dp"
            android:orientation="horizontal"
            android:background="@android:color/transparent"
            android:gravity="end"
            android:layout_gravity="center_vertical"
            android:paddingBottom="8dp">

            <Button
                android:id="@+id/stats_reset"
                android:layout_height="wrap_content"
                android:layout_width="wrap_content"
                android:layout_marginEnd="8dp"
                style="@style/mdtp_ActionButton.Text"
                android:text="@string/reset" />

            <Button
                android:id="@+id/ok"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="16dp"
                style="@style/mdtp_ActionButton.Text"
                android:text="@string/mdtp_ok" />

        </LinearLayout>

    </LinearLayout>

</ScrollView>