<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.sergey.notify.MainActivity">
    <Button
        android:id="@+id/btn_displaynotif"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Display Notification"
        android:onClick="onClick"/>
</RelativeLayout>

