NEW: Master Swift design patterns with my latest book! >>

How to find a touch's location in a view with location(in:)

Written by Paul Hudson    @twostraws

When the user starts touching an iOS screen, touchesBegan() is immediately called with a set of UITouches. If you want to find where the user touched, you need to take one of those touches then use location(in:) on it, like this:

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if let touch = touches.first {
        let position = touch.location(in: view)
        print(position)
    }
}

That will make position a CGPoint representing where the user touched in the current view. You can if you want pass a different view to location(in:), and it will tell you where the touch was relative to that other view instead.

Available from iOS 2.0

Did this solution work for you? Please pass it on!

Other people are reading…

About the Swift Knowledge Base

This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.

Help support Hacking with Swift

This site is funded by Hacking with Swift supporters who buy my e-books. If you can, please support my work – it comes packed with bonus material!

Click here to visit the Hacking with Swift store >>