I am defining this method in my UITableViewController subclass: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan:touches withEvent:event]; NSLog(@"touch beg...

The responder chain is cool. Particularly, being able to send custom actions to the first responder that will bubble up to anyone else that might be interested: [[UIApplication sharedApplication]...

I have a class ASTextField which extends after UITextField and I want to define textFieldResponder. Is any solution to write below line in Swift ?? UIResponder* nextResponder = [textField.supervi...

I've noticed that touchesEnded don't always get delivered to an SKScene on multi touch. Depending on speed of removing fingers etc, I would permanently miss some of the touchesEnded. touchesCancell...

I'd like to make a UIKeyCommand that uses only the [return] key. So far I've tried: UIKeyCommand *selectCommand = [UIKeyCommand keyCommandWithInput:@"\n" modifierFlags:0 action:@selector(chooseSel...

I am working with multitouch while writing, So basically what I am doing is, I am writing with hand support, because typically, its how user writes, I followed this link How to ignore certain UITou...

In my App I want to disable the Copy/Paste/Cut of contents that are showed by a UIWebView object. To achieve this, I created a UIWebView subclass and overrode the - (BOOL)canPerformAction:(SEL)acti...

What are the standard sizes of a UIToolbar for the following: iPhone/iPod iPhone 3.5 inch vertical iPhone 3.5 inch horizontal iPhone 4 inch vertical iPhone 4 inch horizontal iPad iPad vertic...

I noticed that when creating a new project with the iPhone Master-Detail template in Xcode 4.2 beta 4, it does: // AppDelegate.h @interface AppDelegate : UIResponder <UIApplicationDelegate>...

I would like to detect the (initial) touch position in my UIScrollView when the user starts dragging. I have googled this issue and many seem to struggle with this very issue. Now, while I still ca...

I have a UIScrollView that is set to have a clear background. Part of the scrollview does have content, but part does not (so it shows other views behind it). I would like to be able to click throu...

In Mac OS X, you can find the first responder like this: [[self window] firstResponder] Is there any way of doing it in iOS? Or do you need to enumerate the child controls and send an isFi...

What's the purpose for making UIViewController a subclass of UIResponder? Was it done solely to pass the rotation events? I could not find any definitive info on that in the docs. Update I under...

Currently I am using UIKeyinput but it is only sending a single delteBackward event even when I hold down the delete key for a long time. How can I make it send me multiple event calls when I hold ...

I added a UIView that relied on TouchesMoved: events to drag touches. There's a long press, tap, rotate and pinch gesture recognizers already present within the same view controller. I'm running in...

I'm trying to handle touch events with touchesBegan in an overlay to a parent UIView but also allow the touch input to pass through to sibling UIViews underneath. I expected there would be some str...

I'm confused about severals first responder points: If I call - becomeFirstResponder, does system call – canBecomeFirstResponder first? Why? Why are there both - becomeFirstResponder and – canBec...

How would you allow a UIGestureRecognizer of a UIView to receive a touch event but also make sure that another, underlaying/overlaying UIView also receives that very same touch event? Lets say I h...

Suppose I have a UIViewController subclass that takes care of some UIViews. These UIViews are added as subviews of the UIViewController's view property): UIViewController: - (void)viewDidLoad { ...

I'm a newbie. I can't figure out how and where to call ResignFirstResponder to get rid of the keyboard when the user finished entering the text in an UITextField. I'm a bit confused by the UIRespon...