mMDT5_GreenWatch/app/src/main/res/layout/activity_accelerometer.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:padding="10dp"
    tools:context=".AccelerometerActivity">

    <TextView
        android:id="@+id/tvAccelerometerStatusmessage"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="">
    </TextView>

    <TextView
        android:id="@+id/tvAccelerometerData"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="">
    </TextView>

    <TextView
        android:id="@+id/tvAccelerometerWarning"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="">
    </TextView>

    <Button
        android:id="@+id/accelerometerBackToMainActivity"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Back to MainActivity">
    </Button>

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

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/deviceListRecyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:listitem="@layout/device_item"
            android:layout_weight="1">
        </androidx.recyclerview.widget.RecyclerView>

        <androidx.recyclerview.widget.RecyclerView
            android:id="@+id/alarmHistoryListRecyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            tools:listitem="@layout/alarm_history_item"
            android:layout_weight="1">
        </androidx.recyclerview.widget.RecyclerView>

    </LinearLayout>

</LinearLayout>