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CustomScrollViewIndicators

This project demonstrates how to customize UIScrollView indicator insets.

How It Works:

UIScrollView uses UIImages for displaying scroll indicators. So, we can use the tintColor property along with UIImageModeAlwaysTemplate to change the color of the bars.

Implementation:

The sample implementation, in Swift 2.2, below.

// MARK: - Color the Scroll View
    
    func setScrollIndicatorColor(color: UIColor) {
        
        for view in self.tableView.subviews {
            if view.isKindOfClass(UIImageView.self),
                let imageView = view as? UIImageView,
                let image = imageView.image  {
                
                imageView.tintColor = color
                imageView.image = image.imageWithRenderingMode(.AlwaysTemplate)
            }
        }
        
        self.tableView.flashScrollIndicators()
    }

Some thoughts:

  • The method for finding the scroll indicator images might break if the internal implementation changes.
  • The project has a pretty neat sorting technique for ensuring that the color names appear in the correct order.
  • I've successfully submitted an app to the App Store with this code included, butyour mileage may vary.

License:

MIT

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A quick demo project demonstrating how to customize UIScrollView's scroll indicators.

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