How to add a touch event to a UIView?

by

In iOS 3.2 and higher, you can use gesture recognizers. For example, this is how you would handle a tap event:

//The setup code (in viewDidLoad in your view controller)
UITapGestureRecognizer *singleFingerTap = 
  [[UITapGestureRecognizer alloc] initWithTarget:self 
                                          action:@selector(handleSingleTap:)];
[self.view addGestureRecognizer:singleFingerTap];

//The event handling method
- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer
{
  CGPoint location = [recognizer locationInView:[recognizer.view superview]];

  //Do stuff here...
}

There are a bunch of built in gestures as well. Check out the docs for iOS event handling and UIGestureRecognizer. I also have a bunch of sample code up on github that might help.

More Related Contents:

  1. How to find topmost view controller on iOS
  2. How Do I Take a Screen Shot of a UIView?
  3. Get to UIViewController from UIView?
  4. UIView Infinite 360 degree rotation animation?
  5. NSAttributedString background color and rounded corners
  6. How to use UIVisualEffectView to Blur Image?
  7. How to crop a UIImageView to a new UIImage in ‘aspect fill’ mode?
  8. Proper practice for subclassing UIView?
  9. iPhone SDK: what is the difference between loadView and viewDidLoad?
  10. How can I detect screen lock/unlock events on the iPhone?
  11. How to use UIView autoresizingMask property programmatically?
  12. Drawing UIBezierPath on code generated UIView
  13. How to add a border just on the top side of a UIView
  14. Cut transparent hole in UIView
  15. “From View Controller” disappears using UIViewControllerContextTransitioning
  16. How do you draw a line programmatically from a view controller?
  17. How to load a xib file in a UIView
  18. Can UIView be copied?
  19. Why masksToBounds = YES prevents CALayer shadow?
  20. Creating a reusable UIView with xib (and loading from storyboard)
  21. How do I present a UIViewController from SKScene?
  22. UIView – How to get notified when the view is loaded?
  23. How to draw a “speech bubble” on an iPhone?
  24. Dashed line border around UIView
  25. How do I change the color of the text in a UIPickerView under iOS 7?
  26. Creating iPhone Pop-up Menu Similar to Mail App Menu
  27. rotate a UIView around its center but several times
  28. UIView’s border color in Interface builder doesn’t work?
  29. How to mimic Keyboard animation on iOS 7 to add “Done” button to numeric keyboard?
  30. Round top corners of a UIView and add border

Leave a Comment