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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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6 views

Namespace SIGNAL, Code 0x5 with EXC_BREAKPOINT (SIGTRAP)

I am unable to reproduce the issue. One of my user sent the crash log and the issue seem to point to NSUserDefault setBool:forKey method. Not working for user Device iPhone 6, iOS version: 12.4.4. ...
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11 views

Skip migratePersistentStore code if can't find mapping model for migration

I am working with migration from SQLite to SQLcipher.[coordinator migratePersistentStore:oldStore toURL:newDatabaseURL options:options withType:EncryptedStoreType error:&error];I also add some ...
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1answer
17 views

+[NSData bookmarkDataWithContentsOfURL:]: unrecognized selector sent to class

I am trying to resolve an alias file's original path using Objective-C(or maybe C++; it's an .mm file). Not being very much familiar, I am somehow missing + and - methods' usage. I am aware of them ...
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7 views

Apple watch OS error upon playing m3u8 link on WKInterfaceInlineMovie

This is the code;NSURL *movieURL = [NSURL URLWithString:@"http://media.smc-host.com:1935/cycnow.com/cyc1/playlist.m3u8"];[self.cycmovieplayer setMovieURL:movieURL];Here is the error upon ...
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13 views

Collection view dequeueing same cell for consecutive index paths

Has anyone run into the issue where a UICollectionView dequeues the same cell for consecutive indexpaths? This is happening when I call [self.collectionView deleteItemsAtIndexPaths:indexPaths];The ...
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16 views

Frame dropping when using AVAssetWriter?

I’m working on an app that processes video frames, draws effects on the frame and saves them. When saving the video using AVAssetWriter I get stutters in the resulting video, but when I reduce the ...
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0answers
7 views

Objective C: How to share PHObjects [closed]

I want so share several PHObjects (depending on user selection), either via the UIActivityController and I also want to offer the possibility to create a new album in the user's photo app out of the ...
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0answers
14 views

Video transitions in iOS - blur, zoom etc

I am working on a video editing app for iOS, I am currently struggling to add smooth transitions to the app.For example:My video is composited using AVMutableVideoComposition and AVAssetTrack.I ...
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2answers
30 views

UIView Animation version issue

I am getting this error: beginAnimations:context: is deprecated: first deprecated in iOS 13.0 - Use the block-based animation API instead for these lines.I am trying to learn Swift coding and ...
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22 views

iOS UIKeyboardWillShow fires unexpectedly

I have a UITextView and a UITableView, and I need to adjust the bottom position and scrolling of the TableView as the keyboard opens and closes, and so I setup notifications for the keyboard. Not ...
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8 views

NSScrollView setMagnification: centeredAtPoint: a possible bug?

I have a NSScrollView and I need to zoom the documentView by mouse (vertical movement) around a focus point (point inside documentView). I used NSScrollView - (void)setMagnification:(CGFloat)...
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10 views

What user defaults can I use as a macOS app's plug-in?

I am creating a plug-in in Objective-C to a third-party macOS app. I would like to store some values in NSUserDefaults. I need to be able to read and set the values from the plug-in as well as from a ...
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1answer
27 views

How are url scheme and file types handlers found/registered on macOS?

I am creating a plug-in in Objective-C to a third-party macOS app. I want to register and handle url scheme (like myscheme://somedatahere) and file types - for example, when a user double click on a ...
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15 views

How to create and bundle an app inside a macOS app's plug-in?

I am creating a plug-in in Objective-C to a third-party macOS app. I want to register and handle url and file types - for example, when a user double click on a file our plug-in should be notified. ...
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3answers
61 views

Tableview header cell expand with same cardView in swift?

I have attached the image click the card view expands the same card inside the table cell dynamically its passible to achieve this? I have searched a lot but not workingHear my code added header ...

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