ACTYVITY_MAIN

<?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">


    <ImageButton
        android:id="@+id/imageButton"
        android:layout_width="match_parent"
        android:layout_height="252dp"
        android:background="@drawable/graient1" />

    <ImageButton
        android:id="@+id/imageButton2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/gradient2" />
</LinearLayout>