如何设置滑块的起始位置?

How to set the starting position of the slider?

请告诉我如何设置滑块的起始位置,我找了一个小时也没找到:(

https://github.com/channguyen/range-slider-view

用这个 setInitialIndex(int value)

 rsv_large= (RangeSliderView) findViewById(R.id.rsv_large);
 rsv_large.setInitialIndex(2);