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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Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy
Just started using Xcode 4.5 and I got this error in the console: Warning: Attempt to present < finishV
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414
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Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7
Starting in iOS7, there is additional space at the top of my UITableView's which have a style UITableView
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How do I test if a string is empty in Objective-C?
How do I test if an NSString is empty in Objective-C?
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Version vs build in Xcode
I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I
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This action could not be completed. Try Again (-22421)
I am trying to upload an Apple TV App to the App Store for testing purposes, but I got the issue: This Action
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Xcode 6: Keyboard does not show up in simulator
The keyboard does not show up when I run the simulator and click in the UITextView. How do I re-enable the key
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Hide strange unwanted Xcode logs
When using the Xcode 8+ and creating a new blank project, the following logs appear when running the applicati
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How to link to apps on the app store
I am creating a free version of my iPhone game. I want to have a button inside the free version that takes peo
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Placeholder in UITextView
My application uses an UITextView. Now I want the UITextView to have a placeholder similar to the one you can
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2.3K
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Eliminate extra separators below UITableView
When I set up a table view with 4 rows, there are still extra separators lines (or extra blank cells) below th
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2.3K
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How do I create delegates in Objective-C?
I know how delegates work, and I know how I can use them. But how do I create them?
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How do you trigger a block after a delay, like -performSelector:withObject:afterDelay:?
Is there a way to call a block with a primitive parameter after a delay, like using performSelector:withObject
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2.5K
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Loaded nib but the 'view' outlet was not set
I added a new nib file to my project, and tried to load it. However, when I click on the toolbar icon that is
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Can I embed a custom font in an iPhone application?
I would like to have an app include a custom font for rendering text, load it, and then use it with standard U
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Xcode process launch failed: Security
I have been developing an app for 1 or 2 weeks now and just yesterday I have updated my iPhone 5S to the iOS 8
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Xcode 7 error: "Missing iOS Distribution signing identity for ..."
I tried to upload my App to iTunes Connect resp. AppStore and got the following error: Failed to locate or
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How to check iOS version?
I want to check if the iOS version of the device is greater than 3.1.3 I tried things like: [[UIDevice curren
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Xcode error "Could not find Developer Disk Image"
When attempting to run a build on a connected iOS device in Xcode I get the error: Could not find Develope
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How do I animate constraint changes?
I'm updating an old app with an AdBannerView and when there is no ad, it slides off screen. When there is
