Source code Cara Membuat MainActivity XML di Aplikasi Android

//Author: midasoft.blogspot.com

<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"

    android:background="@drawable/back"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

   

    <Button

        android:id="@+id/button3"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/button2"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="48dp"

        android:onClick="exit"

        android:text="@string/ex" />

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignRight="@+id/button3"

        android:layout_below="@+id/textView1"

        android:onClick="Create"

        android:text="@string/create_data" />

    <Button

        android:id="@+id/button2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignRight="@+id/button1"

        android:layout_below="@+id/button1"

        android:layout_marginTop="24dp"

        android:onClick="View"

        android:text="@string/view_data" />

</RelativeLayout>