Set ImageView to a drawable (Android) -

forgive me being new , teminology may incorrect:

i have array of images in class1, when image selected id passed class2 (code below) display image , give option set wallpaper. problem is, using code below need drawable assign wallpaper, not imageview. can give me guidance in referencing actual drawable have "mywallpapermanager.setresource(need drawable here);"

thanks in advance. hope makes sense, said noob!

public class fullwallview extends activity { private button wallbutton; @override public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.wallpaper_full);      // intent data     intent = getintent();      // selected image id     int position = i.getextras().getint("id");     imageadapter imageadapter = new imageadapter(this);      imageview imageview = (imageview) findviewbyid(r.id.full_wall_view);     imageview.setimageresource(imageadapter.mthumbids[position]);      //making button clickable , setting wallpaper     wallbutton = (button) findviewbyid(r.id.apply);     wallbutton.setonclicklistener(new button.onclicklistener()     {             @override            public void onclick(view arg0) {             // todo auto-generated method stub             wallpapermanager mywallpapermanager              = wallpapermanager.getinstance(getapplicationcontext());             try {                 mywallpapermanager.setresource(need drawable here);             } catch (ioexception e) {              // todo auto-generated catch block              e.printstacktrace();             }             }}); 

first define drawable, set in imageview.

img=(imageview)findviewbyid(r.id.imageview1); drawable mydrawable = getresources().getdrawable(r.drawable.imageview1); img.setimagedrawable(mydrawable);