Look4Sat-rt-bishop/app/src/main/res/layout/fragment_polar.xml

<?xml version="1.0" encoding="utf-8"?><!--
  ~ Look4Sat. Amateur radio and weather satellite tracker and passes predictor for Android.
  ~ Copyright (C) 2019, 2020 Arty Bishop (bishop.arty@gmail.com)
  ~
  ~ This program is free software; you can redistribute it and/or modify
  ~ it under the terms of the GNU General Public License as published by
  ~ the Free Software Foundation; either version 2 of the License, or
  ~ (at your option) any later version.
  ~
  ~ This program is distributed in the hope that it will be useful,
  ~ but WITHOUT ANY WARRANTY; without even the implied warranty of
  ~ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  ~ GNU General Public License for more details.
  ~
  ~ You should have received a copy of the GNU General Public License along
  ~ with this program; if not, write to the Free Software Foundation, Inc.,
  ~ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  -->

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:keepScreenOn="true">

    <com.google.android.material.card.MaterialCardView
        android:id="@+id/polar_bar"
        style="@style/TopBar"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/polar_timer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:elevation="4dp"
        android:fontFamily="@font/digital_dismay"
        android:text="@string/timer_zero"
        android:textColor="@color/themeLight"
        android:textSize="48sp"
        app:layout_constraintBottom_toBottomOf="@+id/polar_bar"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="@id/polar_bar"
        app:layout_constraintTop_toTopOf="parent" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/stub_left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:elevation="4dp"
        android:fontFamily="@font/digital_dismay"
        android:text="@string/timer_placeholder"
        android:textColor="@color/themeLight"
        android:textSize="48sp"
        app:layout_constraintBottom_toBottomOf="@+id/polar_timer"
        app:layout_constraintEnd_toStartOf="@+id/polar_timer"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/polar_timer" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/stub_right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:elevation="4dp"
        android:fontFamily="@font/digital_dismay"
        android:text="@string/timer_placeholder"
        android:textColor="@color/themeLight"
        android:textSize="48sp"
        app:layout_constraintBottom_toBottomOf="@+id/polar_timer"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/polar_timer"
        app:layout_constraintTop_toTopOf="@+id/polar_timer" />

    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        app:layout_constraintDimensionRatio="1:1"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/polar_bar" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/azimuth"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="4dp"
        android:text="@string/pat_azimuth"
        android:textSize="15sp"
        app:layout_constraintStart_toStartOf="@+id/frame"
        app:layout_constraintTop_toTopOf="@+id/frame" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/elevation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="4dp"
        android:text="@string/pat_elevation"
        android:textSize="15sp"
        app:layout_constraintEnd_toEndOf="@+id/frame"
        app:layout_constraintTop_toTopOf="@+id/frame" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/altitude"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="4dp"
        android:text="@string/pat_altitude"
        android:textSize="15sp"
        app:layout_constraintBottom_toBottomOf="@+id/frame"
        app:layout_constraintStart_toStartOf="@+id/frame" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/distance"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="4dp"
        android:text="@string/pat_distance"
        android:textSize="15sp"
        app:layout_constraintBottom_toBottomOf="@+id/frame"
        app:layout_constraintEnd_toEndOf="@+id/frame" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recycler"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:padding="2dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/frame" />

    <com.google.android.material.textview.MaterialTextView
        android:id="@+id/no_trans_msg"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:gravity="center"
        android:text="@string/trans_no_data"
        android:textSize="15sp"
        android:visibility="invisible"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/frame" />
</androidx.constraintlayout.widget.ConstraintLayout>