Gallery Android Tutorial -

here code. want create image gallery succesfully did. want click on thumbnail appear @ bigger scale below gallery or maybe @ center of screen. should use setimageresource() method?

<?xml version="1.0" encoding="utf-8"?> <gallery xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/gallery" android:layout_width="fill_parent" android:layout_height="wrap_content" /> 

i have tried starters put imageview below gallery,but compiler gave me error.

<?xml version="1.0" encoding="utf-8"?>  <resources>    <declare-styleable name="galleryactivity">     <attr name="android:galleryitembackground" />   </declare-styleable>  </resources>    public class galleryactivity extends activity {   /** called when activity first created. */ @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.main);      gallery g = (gallery) findviewbyid(r.id.gallery);     g.setadapter(new imageadapter(this));      g.setonitemclicklistener(new onitemclicklistener() {         public void onitemclick(adapterview<?> parent, view v, int position, long id) {             toast.maketext(galleryactivity.this, "" + position, toast.length_short).show();            }     }); }  public class imageadapter extends baseadapter {     int mgalleryitembackground;     private context mcontext;      private integer[] mimageids = {             r.drawable.sample_1,             r.drawable.sample_2,             r.drawable.sample_3,             r.drawable.sample_4,             r.drawable.sample_5,             r.drawable.sample_6,             r.drawable.sample_7     };      public imageadapter(context c) {         mcontext = c;         typedarray = obtainstyledattributes(r.styleable.galleryactivity);         mgalleryitembackground = a.getresourceid(                 r.styleable.galleryactivity_android_galleryitembackground, 0);         a.recycle();     }      public int getcount() {         return mimageids.length;     }      public object getitem(int position) {         return position;     }      public long getitemid(int position) {         return position;     }      public view getview(int position, view convertview, viewgroup parent) {         imageview = new imageview(mcontext);          i.setimageresource(mimageids[position]);         i.setlayoutparams(new gallery.layoutparams(300, 220));         i.setscaletype(imageview.scaletype.fit_xy);         i.setbackgroundresource(mgalleryitembackground);          return i;     } } } 

thank in advance reading code. useful.

greetings, theo