# iOS **URL:** https://forums.kodeco.com/c/general/ios/17.md?page=11 [Latest](https://forums.kodeco.com/latest.md) · [Categories](https://forums.kodeco.com/categories.md) · [Tags](https://forums.kodeco.com/tags.md) **Page:** 12 --- ## [ArcballCamera.rotate runtime error](https://forums.kodeco.com/t/arcballcamera-rotate-runtime-error/110446)
**Author:** [@jiangwei221](https://forums.kodeco.com/u/jiangwei221)\ **Replies:** 2\ **Last updated:** [July 7, 2020, 12:11am UTC](https://forums.kodeco.com/t/arcballcamera-rotate-runtime-error/110446 "2020-07-07T00:11:05Z")
Hi: I’m using Xcode 11.4.1, macOS version 10.15.4. I tried to run project 05-lighting-fundamentals and 06-textures on an iOS simulator, but when I drag my mouse over the simulator screen, it gives me runtime error. … --- ## [webRTC development with iOS and swiftUI](https://forums.kodeco.com/t/webrtc-development-with-ios-and-swiftui/108103)
**Author:** [@sridhar\_cp](https://forums.kodeco.com/u/sridhar_cp)\ **Replies:** 1\ **Last updated:** [July 6, 2020, 2:29am UTC](https://forums.kodeco.com/t/webrtc-development-with-ios-and-swiftui/108103 "2020-07-06T02:29:21Z")
I have been on the search for an example/tutorial on webRTC video-in playing on an iOS app, preferably SwiftUI (or can use UIRepresentable)… It would be awesome if RW team can make a post on it. Are there any good blogs/… --- ## [Rendering dynamic view controllers with associated views](https://forums.kodeco.com/t/rendering-dynamic-view-controllers-with-associated-views/105042)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [July 5, 2020, 6:06am UTC](https://forums.kodeco.com/t/rendering-dynamic-view-controllers-with-associated-views/105042 "2020-07-05T06:06:03Z")
TODO: \[ Is there a clean/standard/better way to do this? \] This is what I am thinking + Protocol struct PointOfInterestSubType { var title: String var image: UIImage var color: UIColor // subtype's view might… --- ## [Debugging - Breakpoints](https://forums.kodeco.com/t/debugging-breakpoints/104006)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [July 5, 2020, 6:05am UTC](https://forums.kodeco.com/t/debugging-breakpoints/104006 "2020-07-05T06:05:42Z")
I am tracking dark mode by setting up an event in the viewDidLoad of the root view controller (could set it up in didFinishLaunchingWithOptions) . . . change the launch in the scheme to “Wait for the executable to be… --- ## [Flat structure of objects - efficient way to link up parent with child?](https://forums.kodeco.com/t/flat-structure-of-objects-efficient-way-to-link-up-parent-with-child/106509)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [July 5, 2020, 6:05am UTC](https://forums.kodeco.com/t/flat-structure-of-objects-efficient-way-to-link-up-parent-with-child/106509 "2020-07-05T06:05:19Z")
GET request’s response would be something like the following ––– meaning the concept of a category vs its sub-category is determined via parent attribute I am thinking of parsing all the Category objects + filte… --- ## [Moonwalk App lesson 1](https://forums.kodeco.com/t/moonwalk-app-lesson-1/107491)
**Author:** [@chriskiepfer](https://forums.kodeco.com/u/chriskiepfer)\ **Replies:** 6\ **Last updated:** [July 5, 2020, 2:49am UTC](https://forums.kodeco.com/t/moonwalk-app-lesson-1/107491 "2020-07-05T02:49:08Z")
Hi there, I have just completed part one of the lesson (I did not opt to do the colored lines section) and I have everything working great! I have one problem with the stoprun function. When that is pressed (in the simul… --- ## [iMessage Audio Record View](https://forums.kodeco.com/t/imessage-audio-record-view/106136)
**Author:** [@lsimonelli17](https://forums.kodeco.com/u/lsimonelli17)\ **Replies:** 3\ **Last updated:** [July 5, 2020, 12:05am UTC](https://forums.kodeco.com/t/imessage-audio-record-view/106136 "2020-07-05T00:05:53Z")
I’m developing a chat similar to the native apple (iMessage). I have no idea how to replicate or create something similar to the recording of iMessage voice messages (I mean graphically, long press on the button, the vi… --- ## [Performing tasks in the background so that iOS does not freeze the application](https://forums.kodeco.com/t/performing-tasks-in-the-background-so-that-ios-does-not-freeze-the-application/105382)
**Author:** [@jerryngton](https://forums.kodeco.com/u/jerryngton)\ **Replies:** 1\ **Last updated:** [July 4, 2020, 4:53pm UTC](https://forums.kodeco.com/t/performing-tasks-in-the-background-so-that-ios-does-not-freeze-the-application/105382 "2020-07-04T16:53:42Z")
Hello gurus, can you help me to reach out some functionality from iOS. I need to set some settings in the application in time so that the application wakes up at a certain point in time and initiates a socket connection… --- ## [Can not find any extensions folder for book IOS apprentice downloaded](https://forums.kodeco.com/t/can-not-find-any-extensions-folder-for-book-ios-apprentice-downloaded/105251)
**Author:** [@rayzhang523](https://forums.kodeco.com/u/rayzhang523)\ **Replies:** 1\ **Last updated:** [July 4, 2020, 4:50pm UTC](https://forums.kodeco.com/t/can-not-find-any-extensions-folder-for-book-ios-apprentice-downloaded/105251 "2020-07-04T16:50:39Z")
can not find any extensions folder for book IOS apprentice downloaded --- ## [Navigation Controller and Tab Bar Controller wont release memory](https://forums.kodeco.com/t/navigation-controller-and-tab-bar-controller-wont-release-memory/105128)
**Author:** [@iostok69](https://forums.kodeco.com/u/iostok69)\ **Replies:** 3\ **Last updated:** [July 4, 2020, 4:28pm UTC](https://forums.kodeco.com/t/navigation-controller-and-tab-bar-controller-wont-release-memory/105128 "2020-07-04T16:28:54Z")
Hello everyone, I have having memory issue with TabBar and NavigationController. Memory will not get released when I clicked “Back” in navigationBar or tabBar. Do anyone know how to deal with it? I used weak self in all … --- ## [Word search game/puzzle](https://forums.kodeco.com/t/word-search-game-puzzle/69951)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 4\ **Last updated:** [July 10, 2019, 1:34pm UTC](https://forums.kodeco.com/t/word-search-game-puzzle/69951 "2019-07-10T13:34:22Z")
any tutorials out there? (couldn’t find any good ones per say) and/or any pointers on how one would go about designing such a game/puzzle --- ## [iOSApprentice Ch 32](https://forums.kodeco.com/t/iosapprentice-ch-32/94093)
**Author:** [@syktek](https://forums.kodeco.com/u/syktek)\ **Replies:** 2\ **Last updated:** [July 2, 2020, 11:43pm UTC](https://forums.kodeco.com/t/iosapprentice-ch-32/94093 "2020-07-02T23:43:39Z")
I’m up to ch 32 in MyLocations. The program compiles but has a fatal error in AppDelegate.swift func application(\_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: \[UIApplication.LaunchOptionsKe… --- ## [TextField.linelimit(nil) is not resulting in multiline TextField](https://forums.kodeco.com/t/textfield-linelimit-nil-is-not-resulting-in-multiline-textfield/111200)
**Author:** [@ishwar\_jindal](https://forums.kodeco.com/u/ishwar_jindal)\ **Replies:** 1\ **Last updated:** [June 27, 2020, 11:24pm UTC](https://forums.kodeco.com/t/textfield-linelimit-nil-is-not-resulting-in-multiline-textfield/111200 "2020-06-27T23:24:09Z")
I am trying to come up with an appearance in SwiftUI where user can enter multiple line of text on screen. For this I am using TextField and setting linelimit to nil. But output is not showing TextField as multiline. Be… --- ## [Up to date SpriteKit tutorials](https://forums.kodeco.com/t/up-to-date-spritekit-tutorials/112669)
**Author:** [@andrewadey1985](https://forums.kodeco.com/u/andrewadey1985)\ **Replies:** 1\ **Last updated:** [June 23, 2020, 4:46pm UTC](https://forums.kodeco.com/t/up-to-date-spritekit-tutorials/112669 "2020-06-23T16:46:42Z")
Hi Everyone, I’m really struggling to find up to date SpriteKit tutorials or courses. I have a little experience of swift and Xcode but on a whole I’d say I’m just a beginner and I’m looking for some good learning mater… --- ## [Is there anyway to category video in your mobile apps as "path "category](https://forums.kodeco.com/t/is-there-anyway-to-category-video-in-your-mobile-apps-as-path-category/112220)
**Author:** [@yangwulong1978](https://forums.kodeco.com/u/yangwulong1978)\ **Replies:** 1\ **Last updated:** [June 23, 2020, 4:24pm UTC](https://forums.kodeco.com/t/is-there-anyway-to-category-video-in-your-mobile-apps-as-path-category/112220 "2020-06-23T16:24:36Z")
I have downloaded your raywenderlich apps to watch video. my question is is there anyway to category video in your mobile apps as "path "category ,which is available in your website. --- ## [Accessory Detail Button on Custom Table View Cell ⇒ Memory Leak](https://forums.kodeco.com/t/accessory-detail-button-on-custom-table-view-cell-memory-leak/110646)
**Author:** [@hettiger](https://forums.kodeco.com/u/hettiger)\ **Replies:** 3\ **Last updated:** [June 19, 2020, 5:47pm UTC](https://forums.kodeco.com/t/accessory-detail-button-on-custom-table-view-cell-memory-leak/110646 "2020-06-19T17:47:44Z")
I have a demo project on GitHub that is demonstrating a memory leak in iOS 13.5 with Accessory Detail Buttons on Custom Table View Cells. This is a very simple app that I’ve built just for demonstrating this problem—how… --- ## [Text.background accepting Color is not very intuitive](https://forums.kodeco.com/t/text-background-accepting-color-is-not-very-intuitive/109948)
**Author:** [@ishwar\_jindal](https://forums.kodeco.com/u/ishwar_jindal)\ **Replies:** 2\ **Last updated:** [June 12, 2020, 12:14am UTC](https://forums.kodeco.com/t/text-background-accepting-color-is-not-very-intuitive/109948 "2020-06-12T00:14:56Z")
I am going through https://www.raywenderlich.com/4001741-swiftui/lessons/4 and was stuck on Text.background where in video the backcolor was changed to Color.gray. Just out of curiosity I tried to check the documentatio… --- ## [Pre-selection of a collection view cell](https://forums.kodeco.com/t/pre-selection-of-a-collection-view-cell/107264)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [April 29, 2020, 12:27pm UTC](https://forums.kodeco.com/t/pre-selection-of-a-collection-view-cell/107264 "2020-04-29T12:27:21Z")
pre-selection of a collection view cell (of a collection view inside a table view cell) → needs to propagate two view models to reach the view controller (which has access to the view model of the table view of course) -… --- ## [Typealias with closure](https://forums.kodeco.com/t/typealias-with-closure/107640)
**Author:** [@javed](https://forums.kodeco.com/u/javed)\ **Replies:** 1\ **Last updated:** [May 3, 2020, 11:11pm UTC](https://forums.kodeco.com/t/typealias-with-closure/107640 "2020-05-03T23:11:18Z")
Hi Team, Basically this is the code i want to understand why typealias is used typealias DownloadCountHandler = (Int)-\>() var onDownloadFileCompleteCount : DownloadCountHandler?{ didSet{ if onDownloadFileCompleteCou… --- ## [Deploying updated iOS Builds for my app](https://forums.kodeco.com/t/deploying-updated-ios-builds-for-my-app/107227)
**Author:** [@andrewt1](https://forums.kodeco.com/u/andrewt1)\ **Replies:** 2\ **Last updated:** [May 2, 2020, 4:45am UTC](https://forums.kodeco.com/t/deploying-updated-ios-builds-for-my-app/107227 "2020-05-02T04:45:01Z")
I’ve successfully created version 1.0.0 Build 1 for my app. I then made some updates to my code. Added, committed, pushed etc. to my GitHub branch. Then attempted to create what I called version 1.0.2 Build 2 for my app.… --- ## [Binary Tree test case . swift not connecting properly](https://forums.kodeco.com/t/binary-tree-test-case-swift-not-connecting-properly/104744)
**Author:** [@davidrandolph](https://forums.kodeco.com/u/davidrandolph)\ **Replies:** 1\ **Last updated:** [May 2, 2020, 5:09am UTC](https://forums.kodeco.com/t/binary-tree-test-case-swift-not-connecting-properly/104744 "2020-05-02T05:09:09Z")
Hello, I’m currently trying to print my basic binary tree on the binaryTreeTestCase.swift which I downloaded from the site. I followed the video and my code run without error but, my functions don’t seem to print output… --- ## [Raywenderlich website not working](https://forums.kodeco.com/t/raywenderlich-website-not-working/104431)
**Author:** [@flmcl](https://forums.kodeco.com/u/flmcl)\ **Replies:** 4\ **Last updated:** [April 8, 2020, 9:00am UTC](https://forums.kodeco.com/t/raywenderlich-website-not-working/104431 "2020-04-08T09:00:51Z")
I can’t get any of the videos working, what am I doing wrong. --- ## [Unable to receive notification data in Swift 5](https://forums.kodeco.com/t/unable-to-receive-notification-data-in-swift-5/107216)
**Author:** [@blakerocks](https://forums.kodeco.com/u/blakerocks)\ **Replies:** 3\ **Last updated:** [May 19, 2020, 3:35pm UTC](https://forums.kodeco.com/t/unable-to-receive-notification-data-in-swift-5/107216 "2020-05-19T15:35:50Z")
Hello everyone, I’m trying to handle notifications in Swift 5 when my app is completely closed. All the methods I tried, I can’t receive the data of the notification when the app opens. Does anyone know how to fix this? --- ## [Https://www.raywenderlich.com/6080-universal-links-make-the-connection](https://forums.kodeco.com/t/https-www-raywenderlich-com-6080-universal-links-make-the-connection/108494)
**Author:** [@collpoll](https://forums.kodeco.com/u/collpoll)\ **Replies:** 1\ **Last updated:** [May 13, 2020, 2:59pm UTC](https://forums.kodeco.com/t/https-www-raywenderlich-com-6080-universal-links-make-the-connection/108494 "2020-05-13T14:59:18Z")
“applinks:\*collpoll.com” is defined in Associated Domains . because we have multiple subdomains. A wildcard by prefixing \* is not working in my case. https://bi.collpoll.com/apple-app-site-association Please help me --- ## [UITableViewDelegate methods not invoked in ios13.1](https://forums.kodeco.com/t/uitableviewdelegate-methods-not-invoked-in-ios13-1/85460)
**Author:** [@jas](https://forums.kodeco.com/u/jas)\ **Replies:** 3\ **Last updated:** [May 2, 2020, 5:24am UTC](https://forums.kodeco.com/t/uitableviewdelegate-methods-not-invoked-in-ios13-1/85460 "2020-05-02T05:24:25Z")
I have encountered a strange issue with ios 13 where UITableViewDelegate methods in my app (ie: didSelectRowAt) are not being invoked. This has worked without issues in ios 9 through 12. The table view is set up progra… --- ## [Any pro tips for naming?](https://forums.kodeco.com/t/any-pro-tips-for-naming/107091)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [May 2, 2020, 5:00am UTC](https://forums.kodeco.com/t/any-pro-tips-for-naming/107091 "2020-05-02T05:00:09Z")
Is getting tricky to be concise + descriptive whilst also loosely following the already existing naming pattern in the project --- ## [Advices on tech stack and frameworks for TikTok like app](https://forums.kodeco.com/t/advices-on-tech-stack-and-frameworks-for-tiktok-like-app/107045)
**Author:** [@benj](https://forums.kodeco.com/u/benj)\ **Replies:** 1\ **Last updated:** [April 29, 2020, 4:11pm UTC](https://forums.kodeco.com/t/advices-on-tech-stack-and-frameworks-for-tiktok-like-app/107045 "2020-04-29T16:11:01Z")
Hello, I need to develop an app that ressemble tik tok: easy image upload for user with smooth video browsing. Could you please advice on: Which tech stack in the backend do you advise to receive and process videos. W… --- ## [SFSafariViewController + Testing \[Firebase Crashlytics\]](https://forums.kodeco.com/t/sfsafariviewcontroller-testing-firebase-crashlytics/105445)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 2\ **Last updated:** [April 17, 2020, 3:00pm UTC](https://forums.kodeco.com/t/sfsafariviewcontroller-testing-firebase-crashlytics/105445 "2020-04-17T15:00:58Z")
Post looking at the stack trace, I now check existence of http or https via the following if \["http", "https"\].contains(url.scheme?.lowercased() ?? "") { log.info("Can open with SFSafariViewController") let safariVi… --- ## [\[SCENEKIT\] seek suggestions](https://forums.kodeco.com/t/scenekit-seek-suggestions/102351)
**Author:** [@behr](https://forums.kodeco.com/u/behr)\ **Replies:** 3\ **Last updated:** [April 13, 2020, 12:27pm UTC](https://forums.kodeco.com/t/scenekit-seek-suggestions/102351 "2020-04-13T12:27:18Z")
Hello First off all sorry. I tried to find out a proper discussion thread to post this message but I could not find a general thread about SCENEKIT. I really want to use SceneKit. Unity is not my option. I want to mak… --- ## [Gradient Shadow How To?](https://forums.kodeco.com/t/gradient-shadow-how-to/93462)
**Author:** [@lganti](https://forums.kodeco.com/u/lganti)\ **Replies:** 3\ **Last updated:** [April 12, 2020, 2:21pm UTC](https://forums.kodeco.com/t/gradient-shadow-how-to/93462 "2020-04-12T14:21:24Z")
Has anyone implemented a gradient shadow for a view (same as that of the gradience in the view)? I am looking into adding a CAGradientLayer as a sublayer and adding some filter or alike - no progress yet I am able to ap… [Previous page](https://forums.kodeco.com/c/general/ios/17.md?page=10) [Next page](https://forums.kodeco.com/c/general/ios/17.md?page=12)