Gadgetbridge/app/src/main/res/layout/activity_battery_info.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:id="@+id/activity_battery_info_layout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:scrollbars="vertical">


    <LinearLayout
        android:id="@+id/activity_battery_info_master_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="0dp"
        android:layout_marginEnd="0dp"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginStart="14dp"
            android:layout_marginEnd="14dp"
            android:orientation="horizontal">

            <ImageView
                android:id="@+id/battery_status_device_icon"
                android:layout_width="80dp"
                android:layout_height="80dp"
                android:contentDescription="TODO"
                app:srcCompat="@drawable/ic_devices_other" />

            <LinearLayout
                android:id="@+id/activity_battery_info_top_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="5dp"
                android:layout_marginEnd="5dp"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/battery_status_device_name"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:textSize="24sp"
                    tools:text="Device name" />

                <TextView
                    android:id="@+id/battery_status_battery_level"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:textAlignment="textEnd"
                    android:textSize="48sp"
                    tools:text="90%" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/battery_status_battery_voltage"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" />
                </LinearLayout>

            </LinearLayout>

        </LinearLayout>


        <LinearLayout
            android:id="@+id/activity_battery_info_bottom_layout"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <FrameLayout
                android:id="@+id/batteryChartFragmentHolder"
                android:layout_width="match_parent"
                android:layout_height="350dp" />
        </LinearLayout>

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

            <TextView
                android:id="@+id/battery_status_time_span_text"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textAlignment="center"
                android:textSize="20sp" />

            <SeekBar
                android:id="@+id/battery_status_time_span_seekbar"
                style="@style/Widget.AppCompat.SeekBar.Discrete"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:max="5"
                android:progress="1" />

            <Button
                android:id="@+id/battery_status_calendar_button"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Choose end date" />

        </LinearLayout>
    </LinearLayout>
</ScrollView>