android - GridView not displaying if called not from button -


i'm new java, android etc. have problem not able figure out.

i have gridview populated imageadapter based on universalimageloader. when click button launch method,

public void buttonsearch(view view) { imagesearch();       }

gridview display images. when call directly.

imagesearch("somestring");

it's showing nothing @ all. "debug" messages can see imageadapter working. , when click button, gridview starts filling content.

private void imagesearch(string... params) throws clientprotocolexception,         jsonexception, ioexception, interruptedexception,         executionexception {      edittext wordimage = (edittext) findviewbyid(r.id.wordimage);     string previos = null;       string wordtotr = null;         string strwordtos = null;          if ( params.length != 0 )           {           previos = params[0];           }         if ( previos != null)           {             strwordtos = previos;              wordimage.settext(strwordtos);           }             strwordtos = wordimage.gettext().tostring().replaceall(" ", "%20");      parsejsonimages geturls = new parsejsonimages();      geturls.execute(strwordtos);     urlsp = geturls.get();     list<string> urls = new arraylist<string>();      urls = new arraylist<string>(urlsp.values());     directurls = new arraylist<string>(urlsp.keyset());     int j = 0;      while (urls.size() > j) {         urls.set(j, "http://someaddress:" + urls.get(j));         j++;     }      gridview gridview = (gridview) findviewbyid(r.id.gridviewimages);      integer gwight = gridview.getwidth();     integer ghight = gridview.getheight();     imageadapter images = new imageadapter(this, urls, ghight, gwight);     gridview.setadapter(images);     gridview.setselected(true);       gridview.setonitemclicklistener(new onitemclicklistener() {            public void setalphatoimagebypos(integer pos, integer alpha)         {              gridview gridview = (gridview) findviewbyid(r.id.gridviewimages);             imageview imgrecoil = (imageview) (gridview                     .getchildat(pos));             imgrecoil.setalpha(alpha);          }          public void onitemclick(adapterview parent, view v, int position,                 long id) {              if (strimgtag > -1) {                 setalphatoimagebypos(strimgtag, 255);                            strimgtag = position;                 setalphatoimagebypos(strimgtag, 128);           }      });

edit: ok problem solved explaining later

ok, tried dimensions before gridview drawn. in oncreate() when called method launch code after gridview drawn.

public void waiter()     {         final gridview gridview1 = (gridview) findviewbyid(r.id.gridviewimages);          gridview1.getviewtreeobserver().addongloballayoutlistener(new viewtreeobserver.ongloballayoutlistener()            {                 @override                 public void ongloballayout()                  {                     gridview1.getviewtreeobserver().removeglobalonlayoutlistener(this);                     gwight = gridview1.getwidth();                      ghight = gridview1.getheight();                         try {                     imagesearch(wordfromprev);                     } catch (clientprotocolexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     } catch (jsonexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     } catch (ioexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     } catch (interruptedexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     } catch (executionexception e) {                         // todo auto-generated catch block                         e.printstacktrace();                     }                 }           });     }

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