# iOS **URL:** https://forums.kodeco.com/c/general/ios/17.md?page=25 [Latest](https://forums.kodeco.com/latest.md) · [Categories](https://forums.kodeco.com/categories.md) · [Tags](https://forums.kodeco.com/tags.md) **Page:** 26 --- ## [KVC and KVO resources](https://forums.kodeco.com/t/kvc-and-kvo-resources/42953)
**Author:** [@spaceghost87](https://forums.kodeco.com/u/spaceghost87)\ **Replies:** 1\ **Last updated:** [May 28, 2018, 4:52am UTC](https://forums.kodeco.com/t/kvc-and-kvo-resources/42953 "2018-05-28T04:52:34Z")
i was in a technical interview, they where asking about KVC and KVO in Objective-C theres any good resources about this topic in this site? Greeting from Chile --- ## [Where do i find the objective-c video turorials for Testing and Design Patterns?](https://forums.kodeco.com/t/where-do-i-find-the-objective-c-video-turorials-for-testing-and-design-patterns/42831)
**Author:** [@spaceghost87](https://forums.kodeco.com/u/spaceghost87)\ **Replies:** 1\ **Last updated:** [May 24, 2018, 9:19pm UTC](https://forums.kodeco.com/t/where-do-i-find-the-objective-c-video-turorials-for-testing-and-design-patterns/42831 "2018-05-24T21:19:36Z")
i’m need to improve my skills in objective-c and i need tutorials for Design Patterns and Testing, there’s any of those in this site? --- ## [Ready to Subscribe... Quick Question](https://forums.kodeco.com/t/ready-to-subscribe-quick-question/42728)
**Author:** [@dmiannay](https://forums.kodeco.com/u/dmiannay)\ **Replies:** 3\ **Last updated:** [May 23, 2018, 7:26pm UTC](https://forums.kodeco.com/t/ready-to-subscribe-quick-question/42728 "2018-05-23T19:26:29Z")
Hi Folks, I really like what you all have created here. I want to build a very simple master-detail app with a list of simple topics, and then up to ten detail items for each topic. This is all static text, no editing… --- ## [I would love to see a tutorial on app promotion and review](https://forums.kodeco.com/t/i-would-love-to-see-a-tutorial-on-app-promotion-and-review/42621)
**Author:** [@chicago](https://forums.kodeco.com/u/chicago)\ **Replies:** 1\ **Last updated:** [May 18, 2018, 11:35am UTC](https://forums.kodeco.com/t/i-would-love-to-see-a-tutorial-on-app-promotion-and-review/42621 "2018-05-18T11:35:01Z")
Coding is difficult enough, but IMHO, app promotion is infinitesimally more problematic. Failure to find successful methods to promote your app and give it some traction in todays overly saturated marketplace can make t… --- ## [Is it possible to have a callback after a phone call is ended(not VoIP, not jailbreak)](https://forums.kodeco.com/t/is-it-possible-to-have-a-callback-after-a-phone-call-is-ended-not-voip-not-jailbreak/42580)
**Author:** [@wei2lee](https://forums.kodeco.com/u/wei2lee)\ **Replies:** 1\ **Last updated:** [May 17, 2018, 5:25pm UTC](https://forums.kodeco.com/t/is-it-possible-to-have-a-callback-after-a-phone-call-is-ended-not-voip-not-jailbreak/42580 "2018-05-17T17:25:28Z")
thank for any suggestion. --- ## [How do I create a Launchscreen.xib file in Xcode?](https://forums.kodeco.com/t/how-do-i-create-a-launchscreen-xib-file-in-xcode/42222)
**Author:** [@brower](https://forums.kodeco.com/u/brower)\ **Replies:** 3\ **Last updated:** [May 17, 2018, 5:06pm UTC](https://forums.kodeco.com/t/how-do-i-create-a-launchscreen-xib-file-in-xcode/42222 "2018-05-17T17:06:32Z")
I noticed in Lyndsey Scott’s tutorial Tesseract OCR Tutorial for iOS that her project contains a Launchscreen.xib file instead of a Launchscreen.storyboard. How do I create a Launchscreen.xib file like she did? --- ## [Popover Segue anchor point](https://forums.kodeco.com/t/popover-segue-anchor-point/42344)
**Author:** [@marcal](https://forums.kodeco.com/u/marcal)\ **Replies:** 1\ **Last updated:** [May 11, 2018, 4:03pm UTC](https://forums.kodeco.com/t/popover-segue-anchor-point/42344 "2018-05-11T16:03:43Z")
Hi all, It’s been a while since I tinkered with iOS and Swift is all new to me, so sorry if I seem clumsy. On an iPad, I’m trying to display a TableView on a popover by the tap of a UIButton. I’m doing all this on Stor… --- ## [C++ for making ios app](https://forums.kodeco.com/t/c-for-making-ios-app/42479)
**Author:** [@jmgv](https://forums.kodeco.com/u/jmgv)\ **Replies:** 2\ **Last updated:** [May 11, 2018, 11:23am UTC](https://forums.kodeco.com/t/c-for-making-ios-app/42479 "2018-05-11T11:23:17Z")
Hello all, I am an old school who started programming in 80’s doing program in C and C++. On my point of view Swfit is amazing but I would like to know if is there any way of taking the most of what I know about C and C… --- ## [Audio player for playing .mp3 files](https://forums.kodeco.com/t/audio-player-for-playing-mp3-files/40184)
**Author:** [@chakri](https://forums.kodeco.com/u/chakri)\ **Replies:** 2\ **Last updated:** [May 8, 2018, 8:41pm UTC](https://forums.kodeco.com/t/audio-player-for-playing-mp3-files/40184 "2018-05-08T20:41:22Z")
Looking for audio player with in my app with back ground and in app play. Would like to show the audio controls with minimized view, while user is navigating other apps. Appreciate suggestions and reference to sample cod… --- ## [Why does CloudKit server deny request by app to ask user if he wants to share personally identifiable information with app?](https://forums.kodeco.com/t/why-does-cloudkit-server-deny-request-by-app-to-ask-user-if-he-wants-to-share-personally-identifiable-information-with-app/35547)
**Author:** [@brower](https://forums.kodeco.com/u/brower)\ **Replies:** 2\ **Last updated:** [May 8, 2018, 6:29pm UTC](https://forums.kodeco.com/t/why-does-cloudkit-server-deny-request-by-app-to-ask-user-if-he-wants-to-share-personally-identifiable-information-with-app/35547 "2018-05-08T18:29:52Z")
I have the following code in an Xcode project for an iOS app that is supposed to request from the user permission to allow CloudKit to give my app the user’s identifiable information like name and the email address of th… --- ## [Is it possible to change the string value of an existing QR Code?](https://forums.kodeco.com/t/is-it-possible-to-change-the-string-value-of-an-existing-qr-code/36802)
**Author:** [@yapdj](https://forums.kodeco.com/u/yapdj)\ **Replies:** 1\ **Last updated:** [May 6, 2018, 1:55am UTC](https://forums.kodeco.com/t/is-it-possible-to-change-the-string-value-of-an-existing-qr-code/36802 "2018-05-06T01:55:29Z")
Hello, I’m wondering if anyone knows of a way to change the string value of an existing QR Code label? I have a prototype app that can scan an existing QR Code label and display the text string associated with it on scre… --- ## [How to use C# function in objective C](https://forums.kodeco.com/t/how-to-use-c-function-in-objective-c/17552)
**Author:** [@pd\_683](https://forums.kodeco.com/u/pd_683)\ **Replies:** 1\ **Last updated:** [May 6, 2018, 1:52am UTC](https://forums.kodeco.com/t/how-to-use-c-function-in-objective-c/17552 "2018-05-06T01:52:08Z")
I’m trying to use C# function or statements in IOS (Objective C). please me help me out --- ## [Consuming a swift cocoa touch framework in Obj-c app](https://forums.kodeco.com/t/consuming-a-swift-cocoa-touch-framework-in-obj-c-app/20471)
**Author:** [@ftd](https://forums.kodeco.com/u/ftd)\ **Replies:** 1\ **Last updated:** [May 6, 2018, 1:50am UTC](https://forums.kodeco.com/t/consuming-a-swift-cocoa-touch-framework-in-obj-c-app/20471 "2018-05-06T01:50:52Z")
I am trying to write a Cocoa touch framework. But not sure which langue is better to use, swift or objective-C. The framework will be consumed by both obj-c and swift apps. I am leaning toward writing the framework with … --- ## [Invalid entitlements running an App](https://forums.kodeco.com/t/invalid-entitlements-running-an-app/13464)
**Author:** [@mahiguerag](https://forums.kodeco.com/u/mahiguerag)\ **Replies:** 1\ **Last updated:** [May 6, 2018, 1:46am UTC](https://forums.kodeco.com/t/invalid-entitlements-running-an-app/13464 "2018-05-06T01:46:06Z")
Hi, I have a problem, when I compile the App, Xcode shows this message: The entitlements specified in your application’s Code Signing Entitlements file do not match those specified in your provisioning profile. (0xE8008… --- ## [API chord sounds](https://forums.kodeco.com/t/api-chord-sounds/41515)
**Author:** [@luko](https://forums.kodeco.com/u/luko)\ **Replies:** 2\ **Last updated:** [April 30, 2018, 8:38pm UTC](https://forums.kodeco.com/t/api-chord-sounds/41515 "2018-04-30T20:38:38Z")
Hi, anyone knows any API from where to download chord sounds (on piano)? thank you --- ## [Can you reset what you’ve watched?](https://forums.kodeco.com/t/can-you-reset-what-you-ve-watched/41371)
**Author:** [@terryatkins](https://forums.kodeco.com/u/terryatkins)\ **Replies:** 2\ **Last updated:** [April 30, 2018, 6:57pm UTC](https://forums.kodeco.com/t/can-you-reset-what-you-ve-watched/41371 "2018-04-30T18:57:54Z")
Hi is it possible to reset what’s been marked as watched to unwatched? --- ## [New iOS11 accessibility features](https://forums.kodeco.com/t/new-ios11-accessibility-features/41267)
**Author:** [@capitainecaverne](https://forums.kodeco.com/u/capitainecaverne)\ **Replies:** 2\ **Last updated:** [April 30, 2018, 7:28am UTC](https://forums.kodeco.com/t/new-ios11-accessibility-features/41267 "2018-04-30T07:28:01Z")
Hi everyone, Does anyone know how to use the UIAccessibilityContainerDataTable and the UIAccessibilityContainerDataTableCell protocols ? They might be used in conjunction with the UIAccessibilityContainerType but I rea… --- ## [Will StoreKit request a review again, once the user has already rated](https://forums.kodeco.com/t/will-storekit-request-a-review-again-once-the-user-has-already-rated/41236)
**Author:** [@nontomatic](https://forums.kodeco.com/u/nontomatic)\ **Replies:** 1\ **Last updated:** [April 29, 2018, 9:27pm UTC](https://forums.kodeco.com/t/will-storekit-request-a-review-again-once-the-user-has-already-rated/41236 "2018-04-29T21:27:14Z")
I know I can setup my conditions to prompt StoreKit’s alert by using SKStoreReviewController.requestReview(). However, will it ask again once the user has already rated, because it seems I have no way in knowing whethe… --- ## [What is alternative of Dynamic Fragment (Android) in iOS?](https://forums.kodeco.com/t/what-is-alternative-of-dynamic-fragment-android-in-ios/41266)
**Author:** [@blah](https://forums.kodeco.com/u/blah)\ **Replies:** 1\ **Last updated:** [April 29, 2018, 9:09pm UTC](https://forums.kodeco.com/t/what-is-alternative-of-dynamic-fragment-android-in-ios/41266 "2018-04-29T21:09:58Z")
I am trying to make Quiz app in which question comes from server (I have an API) and I want to create UIView or anything similar to fragment in Android. I have searched but could get any good resource. Thank you in adv… --- ## [Thread 1: breakpoint 1.1 2.1](https://forums.kodeco.com/t/thread-1-breakpoint-1-1-2-1/41631)
**Author:** [@seanec](https://forums.kodeco.com/u/seanec)\ **Replies:** 1\ **Last updated:** [April 29, 2018, 9:04pm UTC](https://forums.kodeco.com/t/thread-1-breakpoint-1-1-2-1/41631 "2018-04-29T21:04:14Z")
I am getting a green error in the Thread 1: breakpoint 1.1 2.1 I have searched every page I have made in the URLSession chapter and do not see any breakpoints. I am lost trying to find out what is going on. Any help o… --- ## [Cross-platform mobile app development book](https://forums.kodeco.com/t/cross-platform-mobile-app-development-book/41562)
**Author:** [@rextruong1995](https://forums.kodeco.com/u/rextruong1995)\ **Replies:** 1\ **Last updated:** [April 29, 2018, 6:55pm UTC](https://forums.kodeco.com/t/cross-platform-mobile-app-development-book/41562 "2018-04-29T18:55:57Z")
To the RayWenderlich team, Is there any plan (if any) for a cross-platform mobile application with Xamarin book? The reason is I really enjoy your books due to its thoroughness and sprinkle of humour here and there. Ho… --- ## [Is AdMob exempt from US Export Regulations?](https://forums.kodeco.com/t/is-admob-exempt-from-us-export-regulations/35917)
**Author:** [@davenott](https://forums.kodeco.com/u/davenott)\ **Replies:** 1\ **Last updated:** [April 29, 2018, 4:19am UTC](https://forums.kodeco.com/t/is-admob-exempt-from-us-export-regulations/35917 "2018-04-29T04:19:53Z")
Hi All, I’m considering using AdMob in one of my apps to help monetise it - but I’m struggling to find a straight answer on whether I’d need to jump through all of the encryption hoops when I submit it to the app store. … --- ## [Propitiatory Applications](https://forums.kodeco.com/t/propitiatory-applications/41934)
**Author:** [@jonny](https://forums.kodeco.com/u/jonny)\ **Replies:** 3\ **Last updated:** [April 27, 2018, 7:29am UTC](https://forums.kodeco.com/t/propitiatory-applications/41934 "2018-04-27T07:29:06Z")
Hi Say you build a fee paying app for your customers to use. But essentially, someone shouldn’t be able to just download it from the iOS store and start using it. Would Enterprise mode be the correct thing to use. Or is… --- ## [Beginning Auto Layout - New](https://forums.kodeco.com/t/beginning-auto-layout-new/36068)
**Author:** [@amirfendi](https://forums.kodeco.com/u/amirfendi)\ **Replies:** 0\ **Last updated:** [October 30, 2017, 6:20pm UTC](https://forums.kodeco.com/t/beginning-auto-layout-new/36068 "2017-10-30T18:20:27Z")
Hi there … I’m getting this error when trying to adjust the constraints … the Use Standard Value is grayed out !! --- ## [How do I allow the user to resize an mkcircle object in a map view using a gesture recognizer on the mkcircle?](https://forums.kodeco.com/t/how-do-i-allow-the-user-to-resize-an-mkcircle-object-in-a-map-view-using-a-gesture-recognizer-on-the-mkcircle/35890)
**Author:** [@brower](https://forums.kodeco.com/u/brower)\ **Replies:** 0\ **Last updated:** [October 24, 2017, 11:21pm UTC](https://forums.kodeco.com/t/how-do-i-allow-the-user-to-resize-an-mkcircle-object-in-a-map-view-using-a-gesture-recognizer-on-the-mkcircle/35890 "2017-10-24T23:21:25Z")
In Apple’s iOS Reminders app, you can set a location area at which you would be reminded of your reminder. When you set the location area, you are allowed to draw a circle that covers the area of the location you want to… --- ## [Can i do an activity in not running state](https://forums.kodeco.com/t/can-i-do-an-activity-in-not-running-state/35706)
**Author:** [@gyanaprakash](https://forums.kodeco.com/u/gyanaprakash)\ **Replies:** 0\ **Last updated:** [October 19, 2017, 9:52am UTC](https://forums.kodeco.com/t/can-i-do-an-activity-in-not-running-state/35706 "2017-10-19T09:52:14Z")
Everyday on a particular time i want to one service call. at that time user may not use the app so can i do the api call? and can i track the device lock time? --- ## [Wired Error When Turning off iCloud in Core Data: Updating from App Store Version to TestFlight/Xcode Version](https://forums.kodeco.com/t/wired-error-when-turning-off-icloud-in-core-data-updating-from-app-store-version-to-testflight-xcode-version/36289)
**Author:** [@jianjin](https://forums.kodeco.com/u/jianjin)\ **Replies:** 0\ **Last updated:** [November 6, 2017, 2:35pm UTC](https://forums.kodeco.com/t/wired-error-when-turning-off-icloud-in-core-data-updating-from-app-store-version-to-testflight-xcode-version/36289 "2017-11-06T14:35:03Z")
Say I have an app, version 1.0 using iCloud with Core Data. I want to turn iCloud off in version 2.0. I use the methods described here. When I install version 1.0 from Xcode, then update to version 2.0 from Xcode, it w… --- ## [UICollectionView like in Apple Music Browse section](https://forums.kodeco.com/t/uicollectionview-like-in-apple-music-browse-section/41759)
**Author:** [@tobitech](https://forums.kodeco.com/u/tobitech)\ **Replies:** 3\ **Last updated:** [April 26, 2018, 11:06am UTC](https://forums.kodeco.com/t/uicollectionview-like-in-apple-music-browse-section/41759 "2018-04-26T11:06:21Z")
Hello everyone, can someone please explain how to achieve this kind of paginated cells for UICollectionView in Swift. this shot is from Apple Music, on the playlists section it’s a paginated horizontal list, but when you… --- ## [Missing Realm forum and error](https://forums.kodeco.com/t/missing-realm-forum-and-error/41647)
**Author:** [@gilroykilroy](https://forums.kodeco.com/u/gilroykilroy)\ **Replies:** 6\ **Last updated:** [April 26, 2018, 7:35am UTC](https://forums.kodeco.com/t/missing-realm-forum-and-error/41647 "2018-04-26T07:35:59Z")
There seems to be no forum to discuss the new Realm book Trying to use the playground in Chapter 3 gives: Playground execution failed: error: Couldn’t lookup symbols: \_T010RealmSwift0A0C13ConfigurationVAE10Foun… --- ## [Got problem with import pygame. Can anyone help](https://forums.kodeco.com/t/got-problem-with-import-pygame-can-anyone-help/41708)
**Author:** [@sharul](https://forums.kodeco.com/u/sharul)\ **Replies:** 1\ **Last updated:** [April 20, 2018, 4:37am UTC](https://forums.kodeco.com/t/got-problem-with-import-pygame-can-anyone-help/41708 "2018-04-20T04:37:43Z")
Python 2.7.14 (v2.7.14:84471935ed, Sep 16 2017, 12:01:12) \[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)\] on darwin Type “copyright”, “credits” or “license()” for more information. WARNING: The version of Tcl/Tk (8.5.9… [Previous page](https://forums.kodeco.com/c/general/ios/17.md?page=24) [Next page](https://forums.kodeco.com/c/general/ios/17.md?page=26)