How to detect edge swipes
Detecting pan gestures is easy enough with a regular UIPanGestureRecognizer, but there's a special gesture recognizer to use if you want to detect the user swiping from the edge of their screen. The example below demonstrates detecting the user swiping from the left edge of the screen:
override func viewDidLoad() {
super.viewDidLoad()
let edgePan = UIScreenEdgePanGestureRecognizer(target: self, action: #selector(screenEdgeSwiped))
edgePan.edges = .left
view.addGestureRecognizer(edgePan)
}
@objc func screenEdgeSwiped(_ recognizer: UIScreenEdgePanGestureRecognizer) {
if recognizer.state == .recognized {
print("Screen edge swiped!")
}
}Available from iOS 7.0
Did this solution work for you? Please pass it on!
Other people are reading…
- How to add a shadow to a UIView
- How to hide the navigation bar using hidesBarsOnTap
- How to subclass UIApplication using UIApplicationMain
- How to make a clear button appear in a textfield
- How to make UITableViewCell separators go edge to edge
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
