activity_main.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"
	tools:context=".MainActivity" >

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

	<RadioGroup
		android:layout_width="match_parent"
		android:layout_height="wrap_content" >

		<RadioButton
			android:id="@+id/radioOutdoor"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_weight="1"
			android:text="@string/outdoor" />

		<RadioButton
			android:id="@+id/radioIndoor"
			android:layout_width="match_parent"
			android:layout_height="wrap_content"
			android:layout_weight="1"
			android:text="@string/indoor" />
	</RadioGroup>

	<Button
		android:id="@+id/buttonStartRun"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:text="@string/startRunning" />

	<Button
		android:id="@+id/buttonCheckPrevious"
		android:layout_width="match_parent"
		android:layout_height="wrap_content"
		android:text="@string/checkPrevious" />
</LinearLayout>