I have iPAD app which has UIViewController A as root view Controller of Navigation Controller. Now i have 3 more View Controllers B,C, D as subview of ViewController A. I want B not to respond or...

On Objective-C when animation starts on the UIView, no touch interaction is accepted. how can we handle this?

How i can do a UIView animation like a radar? I already have a UIView with the circles created with drawrect, but how i can create a line, doing a clock animation? Like the image below :

just as a background, this question is related to this one I posted earlier: Trying to expand/collapse UITableViewCell from a UIButton on the custom cell To summarize, I have a UITableView with se...

I have a Table View which displays images using lazy loading from AFNetworking with a placeholder image. I'm trying to accomplish a way to fade from the placeholder to the image when it's loaded. M...

I have problems with transitionWithView and animateWithDuration. One of my animateWithDuration blocks doesn't transition, it is a sudden change, and transitionWithView does not temporarily disable ...

I'm really curious as to how apple does this transition: If you go to a photo within the photos app, then try to send it in an email, you'll see this pretty cool transition where Apple grabs the im...

I have a viewController that has a tableView and a mapView, and only one is visible. I also have a toolbar with segment control with two buttons (list and map) How do I switch between the table vi...

I have a gridView, I use to display several GridViewCell : UIView. The GidViewCell adds an UILabel to itself and attaches anUITapGestureRecognizer to itself. UITapGestureRecognizer *gestureRecogni...