<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".SendBroadcastActivity">

    <Button
            android:text="@string/send_broadcast"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintStart_toStartOf="parent" app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent" android:id="@+id/button" android:onClick="broadcastIntent"/>
</android.support.constraint.ConstraintLayout>