Gadgetbridge/app/src/main/res/layout/activity_qhybrid_app_choser.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    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"
    tools:context=".devices.qhybrid.QHybridAppChoserActivity">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:paddingTop="40dp"
        android:id="@+id/qhybrid_packageChooserLoading"/>

    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/qhybrid_appChooserList"/>

    </RelativeLayout>

</androidx.constraintlayout.widget.ConstraintLayout>