iOS
iOS is the mobile operating system running on the Apple iPhone, iPod touch, and iPad. Use this tag [ios] for questions related to programming on the iOS platform. Use the related tags [objective-c] and [swift] for issues specific to those programming languages.
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Constants in Objective-C
I'm developing a Cocoa application, and I'm using constant NSStrings as ways to store key names for
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How to change the name of an iOS app?
I began an iPhone project the other day with a silly development code name, and now I want to change the name
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How can I disable the UITableView selection?
When you tap a row in a UITableView, the row is highlighted and selected. Is it possible to disable this so ta
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How do I check if a string contains another string in Objective-C?
How can I check if a string (NSString) contains another smaller string? I was hoping for something like: NSS
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Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?
I'm trying to link a UILabel with an IBOutlet created in my class. My application is crashing with the f
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performSelector may cause a leak because its selector is unknown
I'm getting the following warning by the ARC compiler: "performSelector may cause a leak because its sel
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How do I sort an NSMutableArray with custom objects in it?
What I want to do seems pretty simple, but I can't find any answers on the web. I have an NSMutableArray
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How can I check for an active Internet connection on iOS or macOS?
I would like to check to see if I have an Internet connection on iOS using the Cocoa Touch libraries or on mac
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Transport security has blocked a cleartext HTTP
What setting do I need to put in my info.plist to enable HTTP mode as per the following error message? Tra
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Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
How do you use Auto Layout within UITableViewCells in a table view to let each cell's content and subview
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How can I make a UITextField move up when the keyboard is present - on starting to edit?
With the iOS SDK: I have a UIView with UITextFields that bring up a keyboard. I need it to be able to: Allow s
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What's the difference between the atomic and nonatomic attributes?
What do atomic and nonatomic mean in property declarations? @property(nonatomic, retain) UITextField *userNam
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Vertically align text to top within a UILabel
I have a UILabel with space for two lines of text. Sometimes, when the text is too short, this text is display
