ios-camera Archives

-[UIThreadSafeNode canPerformAction:withSender:]: unrecognized selector sent to instance

January 17, 2021 Ogima Cooper

Question or problem in the Swift programming language: I am facing this crash in my iOS app.

Swift: Subclassing UITextView or UICollectionView and proper initialization

January 17, 2021 Oceane Wilson

Question or problem in the Swift programming language: The problem with subclassing UITextView (and UICollectionView) is that designated constructor is “initWithFrame”. But in real life, when it loads from storyboard, initWithCoder will be called.

didReceiveRemoteNotification:fetchCompletionHandler: but the completion handler was never called

January 15, 2021 Andrew Rocky

Question or problem in the Swift programming language: I’ve been trying to implement the fetch completion block with no luck. Whenever I send an APN, xcode still complains that it’s not implemented. Here’s my code

Variadic Parameters v Array Parameter

January 15, 2021 Oceane Wilson

Question or problem in the Swift programming language: I am struggling to see if there is an obvious advantage over which method to use when passing values into a function. My code below may not be the best example to explain the decision I’m trying to make, but it is, in my opinion, the easiest […]

NSUserDefaults in iOS Playground

January 15, 2021 Simon Abital

Question or problem in the Swift programming language: There seems to be a strange issue with iOS Playgrounds where NSUserDefaults always returnsnil instead of the actual value.

How to present an UIImagePickerController in a Popover with iOS 9 and Swift

January 15, 2021 Jeffrey Schneider

Question or problem in the Swift programming language: I’m trying to present the photo library, in a popover, on an iPad with iOS 9 beta 4 and Swift. The preferred way is through a popover, but UIPopoverController is now deprecated. Apparently it’s now done through UIViewController, but there is no documentation, or sample code out […]

NSFetchedResultsController XCode 7 issue

January 15, 2021 Bell Jacquise

Question or problem in the Swift programming language: Xcode 7 beta 6 and and NSFetchedResultsController gave me headache today. If I compile same(with Swift 2 fixes) code with Xcode 6, program works on device and simulators(iOS 7, iOS8). However if I compile with Xcode 7 beta 6, program crashes on device(iOS 8.4) with following error […]

UICollectionView Header and Footer View

January 15, 2021 Bell Jacquise

Question or problem in the Swift programming language: Hello I am wondering how do we achieve this?

What’s the difference between DISPATCH_QUEUE_CONCURRENT and DISPATCH_QUEUE_SERIAL

January 15, 2021 Bell Jacquise

Question or problem in the Swift programming language: I implement the following class:

iOS 9 – Xcode: “Follows Readable Width” programmatically

January 15, 2021 Ollie MC

Question or problem in the Swift programming language: In iOS 9, there is an option in the Xcode SIZE inspector called “Follows Readable Width” which will place padding on the left/right sides of a view so that it won’t stretch out so far (especially on iPads) in order to make the content easier to read.