UIScrollView scroller color?

I have a UIScrollView which I am applying a black 开发者_StackOverflow中文版background, which blends in the scrollbar. I have been looking for a way to change the scrollbars color to white, but I cannot figure it out. Is there a proper way of doing this?

You can use "indicatorStyle" property:

[scrollView1 setBackgroundColor:[UIColor blackColor]];
scrollView1.indicatorStyle = UIScrollViewIndicatorStyleWhite;

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<UIScrollViewDelegate>
@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.

//ScrollView Deleagate
    func scrollViewDidScroll(scrollView: UIScrollView){
        let verticalIndicator: UIImageView = (scrollView.subviews[(scrollView.subviews.count - 1)] as! UIImageView)
        verticalIndicator.backgroundColor = UIColor.redColor()


        let horizontalIndicator: UIImageView = (scrollView.subviews[(scrollView.subviews.count - 2)] as! UIImageView)
        horizontalIndicator.backgroundColor = UIColor.blueColor()
    }