I am using IGGridView with Carousel mode. I have just added the following code to my project. What this method does is to move the circles to the bottom of the screen. 

-(void)doTest{

    NSArray* array = _gridView.visibleCells;

    for (Cell* cell in array) {

        [UIView animateWithDuration:0.5 animations:^{          

            CGRect frame = cell.frame;

            frame.origin.y += 100;            

            cell.frame = frame;

            [self.view layoutIfNeeded];         

        }];

    }

}

The circles move with the animation to the bottom of the screen but when I scroll the grid view, the -(void)cellLocationInViewportChanged:(CGPoint)location returns the initial location values for each cell. So that the circles start moving from their initial location. I thought if I update the cell frames the location parameter was going to return an updated value. Any work around to force the cellLocationInViewportChanged returns updated location value? 

I can ask my question in another way. Where does this location parameter take it's value? Which parameter do I need to change in gridview? Thank you for your support.