uitouch

I have a series of UIViews inside a UIScrollView, and the UIViewControllers for those views are not receiving the touch events. If I take the views out of the scroll view then it works. I have enabled userInteraction on the views but it's still not working! This must be possible and I'd be really grateful if someone could point me in the right direction! Thanks, Mike Do the views have their own touch handlers, or are you relying on the viewcontroller to get the touches? Depending on how you have set things up, the views may be handling the touches without passing through to the view controller

Hey I know there are already a few posts about this - yet I still can't find an adequate answer for the problem I'm having. Just new to cocoa and iOS, I'm in the middle of developing my first iOS game. In this game I would like to be able to calculate the speed of a user's swipe. I'm having no difficulty finding the distance between successive touches in the swipe motion, but am having difficulty determining the time elapsed between the touches in touchesMoved: I do calculations with the current touch as well as keep track of the last previously recorded touch as a UITouch in touchesEnded: I

I am new to iOS, I am using UIPanGestureRecognizer in my project. In which I have a requirement to get current touch point and previous touch point when I am dragging the view. I am struggling to get these two points. If I use touchesBegan method Instead of using UIPanGestureRecognizer , I could get these two points by the following code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ CGPoint touchPoint = [[touches anyObject] locationInView:self]; CGPoint previous=[[touches anyObject]previousLocationInView:self]; } I need to get these two points in UIPanGestureRecognizer

I have the following code for testing purposes: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self customTouchHandler:touches]; } - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { [self customTouchHandler:touches]; } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { [self customTouchHandler:touches]; } - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { [self customTouchHandler:touches]; } - (void)customTouchHandler:(NSSet *)touches { for(UITouch* touch in touches){ if(touch.phase == UITouchPhaseBegan) touchesStarted++;

I am able to understand that when user just touches the view, touches Began and Ended called. When user swipes their hand on a view, touches Moved method gets called. But when does touches Cancelled get called or by what action on user this method gets called? I think probably the most common reason for touchesCancelled being called (since iOS 3.2 anyway) is following the recognition of a gesture by a UIGestureRecognizer. If your view has any kind of gesture recognizer attached to it then it is often very important to provide a custom implementation of the touchesCancelled method - note this

Is there a way to get the UITouch objects associated with a gesture? UIGestureRecognizer doesn't seem to have any methods for this. Jay's right... you'll want a subclass. Try this one for size, it's from one of my projects. In DragGestureRecognizer.h: @interface DragGestureRecognizer : UILongPressGestureRecognizer { } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event; @end @protocol DragGestureRecognizerDelegate <UIGestureRecognizerDelegate> - (void) gestureRecognizer:(UIGestureRecognizer *)gr movedWithTouches:(NSSet*)touches andEvent:(UIEvent *)event; @end And in