I have a UIToolbar that needs three buttons in a radio style, meaning that of the three, only one button can be pushed at a time. The documentation makes reference to the possibility of setting up ...

I have a UITextField that is a subview of a UITableViewCell. When my view loads, I want the text field to become first responder. I have a pointer to the text field in the table cell, so to do this I ...

I want to allow the user to enter a valid date using the iPhone’s settings application. I have experimented with many of the PreferenceSpecifiers data node types including date. I have two issues: ...

I m going to use an example to properly illustrate my confusion. I can t quite wrap my head around this. In Cocoa touch, we have UIViewController and its subclass, UINavigationController. Now, UIVC ...

Basically I m downloading images off of a webserver and then caching them to the disk, but before I do so I want to mask them. I m using the masking code everyone seems to point at which can be found ...

I have an app which has to load some data at startup, so I want to display a splash-screen animation. I m using the MPMoviePlayerController to play a m4v file. The movie has it s background set to [...

Is there a way to add a location from an MKMapView in my application to the built-in Google Maps app? From what I understand there is probably one of two ways to do it: using [[UIApplication ...

I m trying to chain animation events. The application I m coding for work has a multiple choice quiz. First you pick your multiple choice answer. The quiz view fades away. Then a label ("correct" or "...