ViewTreeObserver vto = hscrollview.getViewTreeObserver();            vto.addOnPreDrawListener(newViewTreeObserver.OnPreDrawListener() {                @Override                publicboolean onPreDraw() {                     if(hasMeasured == false){                          intwid = hscrollview.getWidth();                          inthei = hscrollview.getHeight();                          if(wid != 0 && hei != 0){                              hasMeasured= true;                          }                     }                     returntrue;                }            });