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Questions tagged [objective-c]

This tag should be used only on questions that are about Objective-C features or depend on code in the language. The tags [cocoa] and [cocoa-touch] should be used to ask about Apple's frameworks or classes. Use the related tags [ios], [macos], [apple-watch] and [tvos] for issues specific to those platforms.

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Title of button truncate in middle in IOS 14

I am using custom font in my app from last year and its working fine before iOS14. In new release, Title of all button get truncated in middle. I know my button has property of truncate in middle and ...
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11 views

How to find out if the phone has recovered from low memory warning

I want to know if the app actually recovered from low memory warning (UIApplicationDidReceiveMemoryWarningNotification) based on some cleanups done in the app.
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Invalid result for supplementaryViewForElementKind

I'm trying to reset my collectionView's subviews frames and layoutAttributes whenever invalidating the layout for the bottom edge is necessary in layoutSubviews(). However every once in awhile 0.5% of ...
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10 views

beginReceivingRemoteControlEvents does not work for AVAudioSessionCategoryOptionMixWithOthers

I have been trying for this for last several weeks. I am not sure what I am doing wrong. MPRemoteCommandCenter does not even show any thing when I use AVAudioSessionCategoryOptionMixWithOthers. Please ...
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10 views

PHAsset.default().requestAVAsset returns non exportable, non playable asset

I am using [DKImagePickerController] (http://github.com/zhangao0086/DKImagePickerController) for displaying list of videos on the app. While I fetch the videos and try to export them in mp4 format ...
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17 views

Simulated devices are not supported on systems with less than 4GB of physical memory [closed]

run Apple sample project on xcode,reveal bug such as "Unable to boot device due to insufficient system memory. Too many processes. Simulated devices are not supported on systems with less than ...
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15 views

How to prevent shadows in popups iOS 13

I have quite a number of popover classes that rely on + (BOOL)wantsDefaultContentAppearance{ return NO; } to stop the shadow from being shown. Now I see that this is deprecated in ios 13. So what ...
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1answer
33 views

ios14 , TableView:didSelectRowAtIndexPath not called

after ios14 update TableView:didSelectRowAtIndexPath is not called. Running the same source in ios13 works normally tableview A Click to add to the parent view [self.superview addsubview:A] I added a ...
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11 views

How to get subtitle and closedcaption text AVPlayer

I want to get current item subtitle and closed caption text of AVPlayer. Please provide me the solution
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11 views

why dispatch_activate can't run timer again?

_timerQueue = dispatch_queue_create(timerQueueLabel.UTF8String, DISPATCH_QUEUE_SERIAL); _msgTimer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,_timerQueue); ...
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9 views

iOS extending background time on termination not being honoured

We recently started to get the app crash messages from TestFlight when the app is switched to background or terminate, when we reviewed the crash logs we found this was our app taking longer than the ...
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22 views

How do you handle Apple Sign In with WKWebView for platform less than iOS 13?

I'm working on an app that must support Apple Sign In with iOS 10.0+. For the latest iOS I can use AuthenticationServices native library. That's fine, however, for iOS 10-12 we would like to use ...
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1answer
32 views

Since Xcode 12 uitextfields of existing project has black background

A few days ago I upgraded Xcode 11 to Xcode 12, since than my app doesn't build correctly. One of the problems is that my white uitextfields become black! In the image below it should show 4 ...
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1answer
40 views

ios 14: [general] 'NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release

I'm receiving a message in the log saying [general] 'NSKeyedUnarchiveFromData' should not be used to for un-archiving and will be removed in a future release. I have recently downloaded iOS14 on my ...
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22 views

How to create LED dot matrix like background scrolling text in iOS swift

I have created an App which scrolls text based on user input. I have used LED look-alike image in the background with LED look-alike font with marquee label effect. Now I want to show text with ...

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