ios Changing UIScrollView scrollbar color to different colors

Question

How can we change color of UIScrollview\'s scroll indicator to something like blue, green etc.

I know we can change it to white, black. But other then these colors.

Answer 1

Both UIScrollView indicator are sub view of UIScrollView. So, we can access subview of UIScrollView and change the property of subview.

1 .Add UIScrollViewDelegate

@interface ViewController : UIViewController
@end

2. Add scrollViewDidScroll in implementation section

-(void)scrollViewDidScroll:(UIScrollView *)scrollView1
{
    //get refrence of vertical indicator
    UIImageView *verticalIndicator = ((UIImageView *)[scrollView.subviews objectAtIndex:(scrollView.subviews.count-1)]);
    //set color to vertical indicator
    [verticalIndicator setBackgroundColor:[UIColor redColor]];


    //get refrence of horizontal indicator
    UIImageView *horizontalIndicator = ((UIImageView *)[scrollView.subviews objectAtIndex:(scrollView.subviews.count-2)]);
    //set color to horizontal indicator
    [horizontalIndicator setBackgroundColor:[UIColor blueColor]];
}

Note:- Because these indicator update every time when you scroll (means reset to default). SO, we put this code in scrollViewDidScroll delegate method.

Demo available on GitHub - https://github.com/developerinsider/UIScrollViewIndicatorColor