How to change Image on a slider ?

How do I change just the image on a slider?
I've tried `slider.removeSliderAt(0);` and then add new one. But it just adds it at the end of the sliders.
Also tried `slider.removeAllSliders(); `and then add all new ones. But the little dots at the bottom are more than the sliders.
Edit:
Only way I found to do this is to just refresh the activity and load it again.
```
Intent refresh =new Intent(this, MyActivity.class);
startActivity(refresh);
overridePendingTransition(0,0);
```