java - Android numberpicker edge scrolling glitch -

i've created number picker string values.

public void setvalues() {     boolean defaultavaliable = false;     int defaultrow = 0;     string[] values = new string[pickvalues.size()];     (int = 0; < pickvalues.size(); i++) {         if (pickvalues.get(i).equals("01:00")) {             defaultavaliable = true;             defaultrow = i;         }         values[i] = pickvalues.get(i);     }      timepicker.setmaxvalue(values.length - 1);     timepicker.setminvalue(0);     timepicker.setwrapselectorwheel(false);     timepicker.setdisplayedvalues(values);      if (defaultavaliable) {         timepicker.setvalue(defaultrow);     } } 

and when scroll edge values (first or last) picker first jumps item in weird, not smooth way , after when try go other values doesn't scroll. picker glitches on edge value , after time goes back. in way looks scroll on edge value , needs scrolling back.

has else had problem or have suggestions check?

edit 1:

so i've got point know problem when change font size in numberpicker, , don't know why. set font size on 39 starts stuck on first , last item.

private void updateview(view view) {     if(view instanceof edittext){         ((edittext) view).settextsize(39);         ((edittext) view).settextcolor(getresources().getcolor(r.color.mp_white));         ((edittext) view).setfocusable(false);     } } 

does know row size? or if have change size of it, detects scrolling correctly?