Fitting three buttons and a background image in android -

i trying develop android app should ios have done last month. there view background image , 3 buttons. background image has header part , footer part, , need 3 buttons stay between these 2 parts. screenshot ios version , desired output android activity:

and have layout file activity:

   <?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical"     android:background="@drawable/fondo_pantalla"> >  <button         android:id="@+id/button2"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_below="@+id/button1"         android:drawableleft="@drawable/actividades_izq"         android:text="actividades" />      <button         android:id="@+id/button1"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_alignparenttop="true"         android:drawableleft="@drawable/agenda_izq"         android:paddingtop="60dp"         android:text="agenda" />      <button         android:id="@+id/button3"         android:layout_width="fill_parent"         android:layout_height="wrap_content"         android:layout_alignparentleft="true"         android:layout_below="@+id/button2"         android:drawableleft="@drawable/suscribete_izq"         android:text="recibir información de juventud" />  </relativelayout> 

i want layout looks same or similar on devices, in portrait mode.

now looks different depending on screen size.

any welcome.

i think using linear layout weight solve problem. try this.

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     android:orientation="vertical"     android:weightsum="3"     android:background="@drawable/ic_action_search">        <button         android:id="@+id/button1"         android:layout_width="fill_parent"         android:layout_height="0dp"         android:layout_weight="1"         android:drawableleft="@drawable/ic_launcher"         android:text="agenda" />     <button         android:id="@+id/button2"         android:layout_width="fill_parent"         android:layout_height="0dp"         android:layout_weight="1"         android:drawableleft="@drawable/ic_action_search"         android:text="actividades" />      <button         android:id="@+id/button3"         android:layout_width="fill_parent"         android:layout_height="0dp"         android:layout_weight="1"         android:drawableleft="@drawable/fail"         android:text="recibir información de juventud" />  </linearlayout>