Se ho questo:
<?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:background="@drawable/ciccia"
android:id="@+id/mainRelative">
<Button
android:text="Left"
android:id="@+id/leftButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"/>
<Button
android:text="Right"
android:id="@+id/rightButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"/>
<ViewFlipper
android:id="@+id/flipper"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:layout_centerHorizontal="true"
android:background="#FFFFFF"
android:layout_marginLeft="70sp"
android:layout_marginRight="70sp">
<include android:id="@+id/first" layout="@layout/first_view" />
<include android:id="@+id/second" layout="@layout/second_view" />
<include android:id="@+id/third" layout="@layout/third_view" />
</ViewFlipper>
</RelativeLayout>
e nella onCreate() chiamo setContentView() passandogli l'id di questo file, come mai i due Button non vengono disegnati? Anche la findViewById() sui due Button mi ritorna null.
Qualcuno sa aiutarmi?