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Android: Having problems with stretching/scaling on an image button
ImageView img = (ImageButton) dialog.findViewById(R.id.fullsizeimage);
          img.setScaleType(ImageView.ScaleType.CENTER_INSIDE);  //Changing ScaleType here has no effect
          img.setImageBitmap(useThisBitmap);

<?xml version="1.0" encoding="utf-8"?>
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

<ImageButton
    android:id="@+id/fullsizeimage"
    android:background="@null"
    android:layout_width="wrap_content"
    android:layout_height="fill_parent"
    android:adjustViewBounds="true"
    />

 </RelativeLayout>