public void invalidateWheelItemDrawable(int position) {
        int adapterPos = rawPositionToAdapterPosition(position);
        if (isEmptyItemPosition(adapterPos)) return;

        CacheItem cacheItem = mItemCacheArray[adapterPos];
        if (cacheItem != null) cacheItem.mDirty = true;
        invalidate();
    }
public void invalidateWheelItemDrawable ( int position ) { int adapterPos = rawPositionToAdapterPosition ( position ) ; if ( isEmptyItemPosition ( adapterPos ) ) return ; CacheItem cacheItem = mItemCacheArray [ adapterPos ] ; if ( cacheItem != null ) cacheItem . mDirty = true ; invalidate ( ) ; }
Invalidate the drawable at the specific position so that the next Draw call
will refresh the Drawable at this given position in the adapter.