# 🎤 General Discussion

**URL:** https://forums.kodeco.com/c/general/16.md?page=96

[Latest](https://forums.kodeco.com/latest.md) · [Categories](https://forums.kodeco.com/categories.md) · [Tags](https://forums.kodeco.com/tags.md)

**Page:** 97

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## [iOS 10, MapKit and MKDirectiions issue](https://forums.kodeco.com/t/ios-10-mapkit-and-mkdirectiions-issue/17590)

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**Author:** [@createch](https://forums.kodeco.com/u/createch)\
**Replies:** 6\
**Last updated:** [August 3, 2016, 9:55am UTC](https://forums.kodeco.com/t/ios-10-mapkit-and-mkdirectiions-issue/17590 "2016-08-03T09:55:11Z")

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The code below runs perfectly in xCode 7.3 and on iOS 9 devices. However, when run on an iOS 10 device, the MKDirections response will not display the route step instruction. Steps to Reproduce: Run the same code in…

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## [Best way to display a list of PDF's](https://forums.kodeco.com/t/best-way-to-display-a-list-of-pdfs/17954)

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**Author:** [@endodoug](https://forums.kodeco.com/u/endodoug)\
**Replies:** 3\
**Last updated:** [August 3, 2016, 3:47am UTC](https://forums.kodeco.com/t/best-way-to-display-a-list-of-pdfs/17954 "2016-08-03T03:47:15Z")

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I need to show a list of pdf’s in a tableView/collectionView so the user can either select it(or multiple pdf’s) to attach to an email or display it in another view. Any opinions of the best/easiet way to accomplish th…

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## [Sprite Images Won't Switch Out](https://forums.kodeco.com/t/sprite-images-wont-switch-out/17414)

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**Author:** [@melvinbg](https://forums.kodeco.com/u/melvinbg)\
**Replies:** 1\
**Last updated:** [August 1, 2016, 10:42pm UTC](https://forums.kodeco.com/t/sprite-images-wont-switch-out/17414 "2016-08-01T22:42:05Z")

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I’m new to SpriteKit. I started a project and I have different sizes of the sprites that I’m using. However, for some reason, when I switch between the different iPhone simulators the images won’t switch out. What I mean…

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## [How would a put a image in swift code then have the image disappear after a second](https://forums.kodeco.com/t/how-would-a-put-a-image-in-swift-code-then-have-the-image-disappear-after-a-second/18035)

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**Author:** [@zalubski](https://forums.kodeco.com/u/zalubski)\
**Replies:** 1\
**Last updated:** [August 1, 2016, 10:39pm UTC](https://forums.kodeco.com/t/how-would-a-put-a-image-in-swift-code-then-have-the-image-disappear-after-a-second/18035 "2016-08-01T22:39:29Z")

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I would like to position a image then have it disappear after 1 second has passed what would be the code to do this? Thanks.

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## [Infinite scrolling background - how to make objects move with ground](https://forums.kodeco.com/t/infinite-scrolling-background-how-to-make-objects-move-with-ground/18026)

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**Author:** [@squilliop](https://forums.kodeco.com/u/squilliop)\
**Replies:** 0\
**Last updated:** [August 1, 2016, 5:16pm UTC](https://forums.kodeco.com/t/infinite-scrolling-background-how-to-make-objects-move-with-ground/18026 "2016-08-01T17:16:58Z")

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Swift, SpriteKit, iOS. I have an infinitely scrolling background and a character ‘walking’ on the ground plane. I want to drop objects from above and have them land on the ground - so far so good. But the objects don’t…

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## [NSTableview and Core Data Entity's](https://forums.kodeco.com/t/nstableview-and-core-data-entitys/17674)

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**Author:** [@erich\_snijder](https://forums.kodeco.com/u/erich_snijder)\
**Replies:** 3\
**Last updated:** [July 31, 2016, 9:56am UTC](https://forums.kodeco.com/t/nstableview-and-core-data-entitys/17674 "2016-07-31T09:56:45Z")

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Hi There. I’m working with Core Data and displaying the data in a NSTableView. From one Entity showing the data works fine and i’m abble to add data. Bud what i want is to display records from multiple entity’s in one…

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## [What would you ask on an interview for Jr. iOS position?](https://forums.kodeco.com/t/what-would-you-ask-on-an-interview-for-jr-ios-position/17906)

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**Author:** [@alexbush](https://forums.kodeco.com/u/alexbush)\
**Replies:** 1\
**Last updated:** [July 30, 2016, 6:29pm UTC](https://forums.kodeco.com/t/what-would-you-ask-on-an-interview-for-jr-ios-position/17906 "2016-07-30T18:29:26Z")

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Hi, interviewing some folks here at Wanelo and was wondering what kinds of quesitons do you guys ask someone who’s looking to join at a Juniour iOS position?

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## [Accessing keychain item in another app or browser](https://forums.kodeco.com/t/accessing-keychain-item-in-another-app-or-browser/17951)

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**Author:** [@cheetah2000](https://forums.kodeco.com/u/cheetah2000)\
**Replies:** 0\
**Last updated:** [July 30, 2016, 12:39am UTC](https://forums.kodeco.com/t/accessing-keychain-item-in-another-app-or-browser/17951 "2016-07-30T00:39:08Z")

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I am looking for help to setup the correct access control parameters when I an item into keychain. Please help and through some idea, here I would like to do: Create an app for iPhone Within iPhone, within an app, …

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## [UPDATED PROBLEM DESCRIPTION - How to create a "spinning" effect?](https://forums.kodeco.com/t/updated-problem-description-how-to-create-a-spinning-effect/17684)

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**Author:** [@efcjr](https://forums.kodeco.com/u/efcjr)\
**Replies:** 2\
**Last updated:** [July 29, 2016, 8:29pm UTC](https://forums.kodeco.com/t/updated-problem-description-how-to-create-a-spinning-effect/17684 "2016-07-29T20:29:43Z")

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UPDATED PROBLEM DESCRIPTION Perhaps I was not clear in my earlier description, so I have attempted to simplify it. I have a single image in my view and a button (called ROLL). The button when pressed does the followin…

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## [Dyld: program was built for Mac OS X and cannot be run in simulator](https://forums.kodeco.com/t/dyld-program-was-built-for-mac-os-x-and-cannot-be-run-in-simulator/17922)

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**Author:** [@pd\_683](https://forums.kodeco.com/u/pd_683)\
**Replies:** 0\
**Last updated:** [July 29, 2016, 10:30am UTC](https://forums.kodeco.com/t/dyld-program-was-built-for-mac-os-x-and-cannot-be-run-in-simulator/17922 "2016-07-29T10:30:42Z")

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I’m running python script in xcode. for developing IOS app but it continuously give me this error:::: dyld: program was built for Mac OS X and cannot be run in simulator . please help me to how to fix it.

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## [Hi all, I am working on app that provides share option functionality. I unable to see notes app in share option pop-up in ios app. Anyone can please help on how to enable this , so its get listed in share option in ios app](https://forums.kodeco.com/t/hi-all-i-am-working-on-app-that-provides-share-option-functionality-i-unable-to-see-notes-app-in-share-option-pop-up-in-ios-app-anyone-can-please-help-on-how-to-enable-this-so-its-get-listed-in-share-option-in-ios-app/17908)

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**Author:** [@amolpict](https://forums.kodeco.com/u/amolpict)\
**Replies:** 0\
**Last updated:** [July 28, 2016, 8:57pm UTC](https://forums.kodeco.com/t/hi-all-i-am-working-on-app-that-provides-share-option-functionality-i-unable-to-see-notes-app-in-share-option-pop-up-in-ios-app-anyone-can-please-help-on-how-to-enable-this-so-its-get-listed-in-share-option-in-ios-app/17908 "2016-07-28T20:57:12Z")

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iOS, iPhone, app extension, ios app sharing, ios 9

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## [Multiple GameScene load](https://forums.kodeco.com/t/multiple-gamescene-load/17838)

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**Author:** [@oaranger](https://forums.kodeco.com/u/oaranger)\
**Replies:** 2\
**Last updated:** [July 28, 2016, 6:13pm UTC](https://forums.kodeco.com/t/multiple-gamescene-load/17838 "2016-07-28T18:13:15Z")

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Hi team, I am using Spritekit to work on a mini game in which new SKScene is presented after player tap to restart on Game Over scene. If this sequence happen fast and often, my phone is getting very hot I assume it wa…

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## [Scrolling backgrounds - random and grouped!](https://forums.kodeco.com/t/scrolling-backgrounds-random-and-grouped/17634)

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**Author:** [@squilliop](https://forums.kodeco.com/u/squilliop)\
**Replies:** 1\
**Last updated:** [July 28, 2016, 1:03am UTC](https://forums.kodeco.com/t/scrolling-backgrounds-random-and-grouped/17634 "2016-07-28T01:03:17Z")

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here’s what i want to do - just not sure what the best approach would be programmatically speaking. make several groups of images - these are to be used as scrolling seamless backgrounds each group to have start and en…

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## [Checklist pg. 252. UISwitch does not show when app runs](https://forums.kodeco.com/t/checklist-pg-252-uiswitch-does-not-show-when-app-runs/17840)

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**Author:** [@sisball8](https://forums.kodeco.com/u/sisball8)\
**Replies:** 1\
**Last updated:** [July 28, 2016, 12:59am UTC](https://forums.kodeco.com/t/checklist-pg-252-uiswitch-does-not-show-when-app-runs/17840 "2016-07-28T00:59:04Z")

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The switch button is clearly showing when viewed on Main Storyboard. But, when the app runs, the switch button is nowhere to be found. A few things I’ve tried are: turn auto-layout on/off change simulator to iPhone 5,…

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## [Swift : use of self when you come from a long background of ObjectiveC :D](https://forums.kodeco.com/t/swift-use-of-self-when-you-come-from-a-long-background-of-objectivec-d/17853)

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**Author:** [@jtonnelier](https://forums.kodeco.com/u/jtonnelier)\
**Replies:** 2\
**Last updated:** [July 27, 2016, 7:30pm UTC](https://forums.kodeco.com/t/swift-use-of-self-when-you-come-from-a-long-background-of-objectivec-d/17853 "2016-07-27T19:30:19Z")

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Hi guys, I’ve been an iOS developper since iOS 3.0 (yes, there was dinosaurs back in those days :D) and I started Swift about 6 months after it was released (and I f\*\*\*ing love it of course). I don’t know for you guys,…

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## [Cross Compiling question - NMAP to IOS?](https://forums.kodeco.com/t/cross-compiling-question-nmap-to-ios/17859)

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**Author:** [@gdijim](https://forums.kodeco.com/u/gdijim)\
**Replies:** 0\
**Last updated:** [July 27, 2016, 5:37pm UTC](https://forums.kodeco.com/t/cross-compiling-question-nmap-to-ios/17859 "2016-07-27T17:37:37Z")

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Hi everyone, About 5 years ago, I knew how (more or less) to cross-compile libraries that were consumable by Monotouch/Xamarin applications. Specifically, I knew how to compile a previously made C project (Flite text t…

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## [I need to know what is the best way to do face detection and tracking and apply3D filters on faces](https://forums.kodeco.com/t/i-need-to-know-what-is-the-best-way-to-do-face-detection-and-tracking-and-apply3d-filters-on-faces/17842)

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**Author:** [@shahul](https://forums.kodeco.com/u/shahul)\
**Replies:** 0\
**Last updated:** [July 27, 2016, 11:25am UTC](https://forums.kodeco.com/t/i-need-to-know-what-is-the-best-way-to-do-face-detection-and-tracking-and-apply3d-filters-on-faces/17842 "2016-07-27T11:25:30Z")

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I researched on many topics like Apple Core Image Processing, Sprite Kit, Scene Kit, OpenGL ES, OpenCV & Dlib but I dont know how to start or which technology should I used. My requirement is to make an iOS app like MSQ…

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## [Return from GameScene](https://forums.kodeco.com/t/return-from-gamescene/17733)

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**Author:** [@rvmola](https://forums.kodeco.com/u/rvmola)\
**Replies:** 2\
**Last updated:** [July 26, 2016, 1:59am UTC](https://forums.kodeco.com/t/return-from-gamescene/17733 "2016-07-26T01:59:27Z")

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Hi team , I’m trying to implement a code to back to homescreen from a game scene , I created a main view, after clicking in a button my game starts , but when the game finish my intention is go back to homeScreen… I got …

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## [Which UISwitch was changed when its selector is called?](https://forums.kodeco.com/t/which-uiswitch-was-changed-when-its-selector-is-called/17686)

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**Author:** [@efcjr](https://forums.kodeco.com/u/efcjr)\
**Replies:** 2\
**Last updated:** [July 24, 2016, 12:02am UTC](https://forums.kodeco.com/t/which-uiswitch-was-changed-when-its-selector-is-called/17686 "2016-07-24T00:02:21Z")

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I have created several UISwitches programmatically. I have a selector assigned to call a method when the switch is changed. Right now the selector calls the same method regardless of which switch is changed. When the …

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## [Storyboard problem](https://forums.kodeco.com/t/storyboard-problem/17702)

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**Author:** [@justus148](https://forums.kodeco.com/u/justus148)\
**Replies:** 2\
**Last updated:** [July 23, 2016, 10:48pm UTC](https://forums.kodeco.com/t/storyboard-problem/17702 "2016-07-23T22:48:00Z")

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Hey guys, im just into programming so I still dont really understand everything… :slight\_smile: What my problem is, when I want to add a navigation controller it automatically adds another “extra” view, it looks like thi…

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## [Siri Remote dPad valueChangehandler in Simulator not working?](https://forums.kodeco.com/t/siri-remote-dpad-valuechangehandler-in-simulator-not-working/17661)

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**Author:** [@marxfr](https://forums.kodeco.com/u/marxfr)\
**Replies:** 0\
**Last updated:** [July 22, 2016, 2:08pm UTC](https://forums.kodeco.com/t/siri-remote-dpad-valuechangehandler-in-simulator-not-working/17661 "2016-07-22T14:08:13Z")

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Hi, I developed a small piece of code to get the X- and Y-Values from the Siri Remots dPad using the valueChangeHandler: self.controllerUserInteractionEnabled = false if let miniPad = self.controller?.mic…

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## [How to develop theme app...(Need advice)](https://forums.kodeco.com/t/how-to-develop-theme-app-need-advice/17629)

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**Author:** [@sadeekam](https://forums.kodeco.com/u/sadeekam)\
**Replies:** 0\
**Last updated:** [July 21, 2016, 4:08pm UTC](https://forums.kodeco.com/t/how-to-develop-theme-app-need-advice/17629 "2016-07-21T16:08:48Z")

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Hi there, I want to develop app that have have store for sale theme of user profile and also can add new theme from server. The theme can change style of view like font, image, color, border, and some theme can be add c…

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## [Implementation of smartStore in an iOS application](https://forums.kodeco.com/t/implementation-of-smartstore-in-an-ios-application/17600)

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**Author:** [@rmchrn](https://forums.kodeco.com/u/rmchrn)\
**Replies:** 0\
**Last updated:** [July 21, 2016, 5:59am UTC](https://forums.kodeco.com/t/implementation-of-smartstore-in-an-ios-application/17600 "2016-07-21T05:59:37Z")

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We are creating an application which is integrated with salesforce mobile sdk. for offline capability and synchnonization salesforce people are providing smartStore and smartSync frameworks. As of now we can be able to c…

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## [Add moving image to videos](https://forums.kodeco.com/t/add-moving-image-to-videos/17577)

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**Author:** [@nameduser](https://forums.kodeco.com/u/nameduser)\
**Replies:** 0\
**Last updated:** [July 20, 2016, 5:18pm UTC](https://forums.kodeco.com/t/add-moving-image-to-videos/17577 "2016-07-20T17:18:06Z")

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Hey there, let’s say I add an image to an existing video. There’s a good tutorial on this to start with when searching for AVFoundation. Cool stuff. But what if the image is supposed to cover a moving object in the vide…

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## [I can't understand if this is get/set or closure in Swift](https://forums.kodeco.com/t/i-cant-understand-if-this-is-get-set-or-closure-in-swift/15656)

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**Author:** [@apoorvmote](https://forums.kodeco.com/u/apoorvmote)\
**Replies:** 2\
**Last updated:** [July 20, 2016, 12:00pm UTC](https://forums.kodeco.com/t/i-cant-understand-if-this-is-get-set-or-closure-in-swift/15656 "2016-07-20T12:00:04Z")

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I am using code where its like let date: NSDate? = { return nil }() what does it mean when you type () at end of the code. Is that getter?

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## [Platform Game: Choppy SpriteNode Movement when Holding the Movement Button](https://forums.kodeco.com/t/platform-game-choppy-spritenode-movement-when-holding-the-movement-button/17532)

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**Author:** [@shuyuangoh](https://forums.kodeco.com/u/shuyuangoh)\
**Replies:** 0\
**Last updated:** [July 19, 2016, 11:13pm UTC](https://forums.kodeco.com/t/platform-game-choppy-spritenode-movement-when-holding-the-movement-button/17532 "2016-07-19T23:13:06Z")

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I am trying to make a simple platform game using swift for iOS. I encounter a problem in making the playerNode (Type: SKSpriteNode) moving smoothly to the left/right while holding down the arrow key on the screen. Thes…

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## [Unity2D: Returning back to idle state animation problem](https://forums.kodeco.com/t/unity2d-returning-back-to-idle-state-animation-problem/17517)

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**Author:** [@xxdivaxx1](https://forums.kodeco.com/u/xxdivaxx1)\
**Replies:** 0\
**Last updated:** [July 19, 2016, 3:46pm UTC](https://forums.kodeco.com/t/unity2d-returning-back-to-idle-state-animation-problem/17517 "2016-07-19T15:46:35Z")

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Since, I am a new user, I can only put two up-links, so if you could click here to read the full information, thank you :slight\_smile:. So can anyone help me with both of my problems, which is: Returning back to idle a…

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## [My code can running on simulator,but not in real device](https://forums.kodeco.com/t/my-code-can-running-on-simulator-but-not-in-real-device/17431)

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**Author:** [@showxjn](https://forums.kodeco.com/u/showxjn)\
**Replies:** 1\
**Last updated:** [July 19, 2016, 2:18pm UTC](https://forums.kodeco.com/t/my-code-can-running-on-simulator-but-not-in-real-device/17431 "2016-07-19T14:18:03Z")

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Today I met a very strange question, everything is ok when I use the simulator debugging , but with the real machine debugging I encountered the following tips:

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## [How tools like crashlytics work? How they get crash log?](https://forums.kodeco.com/t/how-tools-like-crashlytics-work-how-they-get-crash-log/17496)

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**Author:** [@fatface](https://forums.kodeco.com/u/fatface)\
**Replies:** 0\
**Last updated:** [July 19, 2016, 1:49am UTC](https://forums.kodeco.com/t/how-tools-like-crashlytics-work-how-they-get-crash-log/17496 "2016-07-19T01:49:40Z")

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I want understand how tools like crashlytics works? Like, they get crash log stack trace just fell minutes before throw and system crash? They access some kind of crash dump that is generated after crash arrived? In O…

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## [Have problem with particle system in scenekit](https://forums.kodeco.com/t/have-problem-with-particle-system-in-scenekit/17455)

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**Author:** [@kyao233](https://forums.kodeco.com/u/kyao233)\
**Replies:** 0\
**Last updated:** [July 18, 2016, 4:01am UTC](https://forums.kodeco.com/t/have-problem-with-particle-system-in-scenekit/17455 "2016-07-18T04:01:22Z")

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I have a problem that when I add particle system into my project by following the instructions in, the editor is not showing the fire, but a grey editor, it doesn’t change even if I change the background color, anyone ca…

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