android - Dynamically display imagebuttons in AsyncTask -

so retrieving images parse , dynamically displaying them in scrollview linearlayout, can't seem add clicklistener or add them view. here's have:

mytaskparams params = new mytaskparams(drinklist.get(j).getstring("name"), data, lpos, drinklist.get(j).getobjectid(), j);                         mytask mytask = new mytask();                         mytask.execute(params); 

and in pass data , try adding imagebutton view.

private static class mytaskparams {         string name;         byte[] data;         int lpos;         string id;         int j;          public mytaskparams(string name, byte[] data, int lpos, string id, int j) {             this.data = data;             this.name = name;             this.lpos = lpos;             this.id = id;             this.j = j;         }     }      private class mytask extends asynctask<mytaskparams, void, mytaskparams> {         @override         protected mytaskparams doinbackground(mytaskparams... params) {             string name = params[0].name;             byte[] data = params[0].data;             int lpos = params[0].lpos;             string id = params[0].id;             int j = params[0].j;              log.d("doinbackground", data.tostring());              bmp = bitmapfactory.decodebytearray(data, 0, data.length);             btn = new imagebutton(getactivity());             btn.setid(j);             btn.settag(name);             btn.setimagebitmap(bmp);             btn.setbackgrounddrawable(null);             btn.setmaxheight(100);             btn.setmaxwidth(100);             btn.setonclicklistener(new drinkbuttonlistener(getactivity(), lpos, id));             llayout[lpos].addview(btn);              return null;          }     } 

why can't create clicklistener or add button view? error:

"only original thread created view hierarchy can touch views"

y ou can't touch views in other tread main.

if want manipulate view can post runnable view like

myview.post(new runnable(...));