# šŸŽ¤ General Discussion **URL:** https://forums.kodeco.com/c/general/16.md?page=78 [Latest](https://forums.kodeco.com/latest.md) Ā· [Categories](https://forums.kodeco.com/categories.md) Ā· [Tags](https://forums.kodeco.com/tags.md) **Page:** 79 --- ## [A To-Do File or ReadMe File](https://forums.kodeco.com/t/a-to-do-file-or-readme-file/31128)
**Author:** [@jdelatorre312](https://forums.kodeco.com/u/jdelatorre312)\ **Replies:** 0\ **Last updated:** [June 20, 2017, 1:47am UTC](https://forums.kodeco.com/t/a-to-do-file-or-readme-file/31128 "2017-06-20T01:47:57Z")
Hi, Iā€™m new to ios development and wanted to know what was best practices when it came to creating a todo list file or readme file. A place to add notes about an app or a reminder of a few things to keep in mind. --- ## [Handle OAuth2 Authentication w/ SFSafariViewController](https://forums.kodeco.com/t/handle-oauth2-authentication-w-sfsafariviewcontroller/31089)
**Author:** [@bionik6](https://forums.kodeco.com/u/bionik6)\ **Replies:** 0\ **Last updated:** [June 19, 2017, 4:18am UTC](https://forums.kodeco.com/t/handle-oauth2-authentication-w-sfsafariviewcontroller/31089 "2017-06-19T04:18:35Z")
Hello, Am currently building an app which requires user authentication with OAuth2. The service am trying to log in is Todoist. Iā€™ve already done all the necessary setup (showing the login page in a SFSafariVC, defininā€¦ --- ## [Create while loop on timer (swift3)](https://forums.kodeco.com/t/create-while-loop-on-timer-swift3/31045)
**Author:** [@zalubski](https://forums.kodeco.com/u/zalubski)\ **Replies:** 1\ **Last updated:** [June 17, 2017, 9:42pm UTC](https://forums.kodeco.com/t/create-while-loop-on-timer-swift3/31045 "2017-06-17T21:42:14Z")
The code below when compiled is completed instantly. I would like the counter to add 1 every second. So the program should run for 556 seconds. Every second goes by the counter increase by 1. var counā€¦ --- ## [Circular image load not working in swift 3](https://forums.kodeco.com/t/circular-image-load-not-working-in-swift-3/30966)
**Author:** [@keyvan1](https://forums.kodeco.com/u/keyvan1)\ **Replies:** 0\ **Last updated:** [June 15, 2017, 12:31pm UTC](https://forums.kodeco.com/t/circular-image-load-not-working-in-swift-3/30966 "2017-06-15T12:31:38Z")
The following codes used to work in swift 2 but in swift 3 it loads the image with effect but it puts a gray square on top of image on the second touch!!! I use sdWebImage to show the progress indicator call like this: ā€¦ --- ## [Buy multiple PDFs at once](https://forums.kodeco.com/t/buy-multiple-pdfs-at-once/30931)
**Author:** [@macromizer](https://forums.kodeco.com/u/macromizer)\ **Replies:** 0\ **Last updated:** [June 14, 2017, 8:18pm UTC](https://forums.kodeco.com/t/buy-multiple-pdfs-at-once/30931 "2017-06-14T20:18:17Z")
Is there no way to buy multiple books at once via the store instead of having to do a separate checkout for each PDF purchase? --- ## [Install Android Studio, need your help!](https://forums.kodeco.com/t/install-android-studio-need-your-help/15037)
**Author:** [@markone](https://forums.kodeco.com/u/markone)\ **Replies:** 6\ **Last updated:** [July 4, 2016, 5:05pm UTC](https://forums.kodeco.com/t/install-android-studio-need-your-help/15037 "2016-07-04T17:05:11Z")
Hi, Tried to install Android Studio, I run android-studio-bundle-143.2739321-windows.exe. The ā€œAndroid Studio Setupā€ window appeared with 3 selections: Android Studio(without tick), Android SDK(with tick) and Android Vā€¦ --- ## [Podspec trouble](https://forums.kodeco.com/t/podspec-trouble/30887)
**Author:** [@puppet](https://forums.kodeco.com/u/puppet)\ **Replies:** 0\ **Last updated:** [June 13, 2017, 9:23pm UTC](https://forums.kodeco.com/t/podspec-trouble/30887 "2017-06-13T21:23:57Z")
Hello, Iā€™m trying to install a Pod as per tutorial iOS Frameworks Tutorial (https://www.raywenderlich.com/126365/ios-frameworks-tutorial)). When I try to do ā€˜pod installā€™ it seems thereā€™s an issue with the podspec fileā€¦ --- ## [NSFileProviderExtension results in console errors and no breakpoints fired](https://forums.kodeco.com/t/nsfileproviderextension-results-in-console-errors-and-no-breakpoints-fired/30842)
**Author:** [@cdisdero](https://forums.kodeco.com/u/cdisdero)\ **Replies:** 0\ **Last updated:** [June 13, 2017, 3:21am UTC](https://forums.kodeco.com/t/nsfileproviderextension-results-in-console-errors-and-no-breakpoints-fired/30842 "2017-06-13T03:21:19Z")
Greetings! After being inspired by WWDC 2017, Iā€™m trying to write a simple NSFileProviderExtension in Swift in a simple Single View iOS app with the new Xcode 9 / iOS 11 beta. I used the templates in Xcode to create a ā€¦ --- ## [Problem with collision detection](https://forums.kodeco.com/t/problem-with-collision-detection/30827)
**Author:** [@rousco](https://forums.kodeco.com/u/rousco)\ **Replies:** 0\ **Last updated:** [June 12, 2017, 2:29pm UTC](https://forums.kodeco.com/t/problem-with-collision-detection/30827 "2017-06-12T14:29:18Z")
Hello all, I have some Swift source code (mainly based on the MegaJump tutorial) where I want to object to bounce of eachother (see below extract). I canā€™t manage to get the player bounce of the background, while I did ā€¦ --- ## [Imported CSV Data - Working with arrays and dictionary](https://forums.kodeco.com/t/imported-csv-data-working-with-arrays-and-dictionary/30779)
**Author:** [@asterism](https://forums.kodeco.com/u/asterism)\ **Replies:** 0\ **Last updated:** [June 11, 2017, 10:54am UTC](https://forums.kodeco.com/t/imported-csv-data-working-with-arrays-and-dictionary/30779 "2017-06-11T10:54:21Z")
I am working with a large CSV file containing following data: DataID1234,72.819595,14.407141 ... ... ... I managed to import the CSV file into an array giving this console output: \["DataID123", "73.075584", "12.6312ā€¦ --- ## [No exercise projects to be downloaded for video courses](https://forums.kodeco.com/t/no-exercise-projects-to-be-downloaded-for-video-courses/30771)
**Author:** [@guoxing](https://forums.kodeco.com/u/guoxing)\ **Replies:** 0\ **Last updated:** [June 10, 2017, 8:22pm UTC](https://forums.kodeco.com/t/no-exercise-projects-to-be-downloaded-for-video-courses/30771 "2017-06-10T20:22:47Z")
recently I noticed that no exercise projects for video courses can be downloaded anymore. These projects are very helpful to understand the courses. So please make that available again. Thanks! --- ## [Video request: NSOperations](https://forums.kodeco.com/t/video-request-nsoperations/30765)
**Author:** [@maximilian](https://forums.kodeco.com/u/maximilian)\ **Replies:** 0\ **Last updated:** [June 10, 2017, 4:35pm UTC](https://forums.kodeco.com/t/video-request-nsoperations/30765 "2017-06-10T16:35:28Z")
I would love to see an advanced NSOperation video tutorial series that goes in depth on creating custom operations, having dependencies, passing data from operation to the next, and having a path of operations, such as rā€¦ --- ## [Lockups in divTemplate not working](https://forums.kodeco.com/t/lockups-in-divtemplate-not-working/30696)
**Author:** [@kevinsnow](https://forums.kodeco.com/u/kevinsnow)\ **Replies:** 0\ **Last updated:** [June 8, 2017, 8:19pm UTC](https://forums.kodeco.com/t/lockups-in-divtemplate-not-working/30696 "2017-06-08T20:19:31Z")
I have a simple situation that isnā€™t working. Itā€™s a , with a in the center and a on the bottom. Only the button is selectable and I canā€™t figure out why. The lockup is visible, with the expected image and size, itā€™s jā€¦ --- ## [Help FireDatabase using Swift3 how to read data](https://forums.kodeco.com/t/help-firedatabase-using-swift3-how-to-read-data/30689)
**Author:** [@michel](https://forums.kodeco.com/u/michel)\ **Replies:** 0\ **Last updated:** [June 8, 2017, 6:16pm UTC](https://forums.kodeco.com/t/help-firedatabase-using-swift3-how-to-read-data/30689 "2017-06-08T18:16:12Z")
Hello, Thanks to accepting me in your Forums. I have a problem to read data in my FireDataBase. My listing ā€¦ // // ViewController.swift // FirebaseDatabase // // Created by Michel on 08/05/2017. // Copyrightā€¦ --- ## [Can someone please tell me how to resolve this warning](https://forums.kodeco.com/t/can-someone-please-tell-me-how-to-resolve-this-warning/30644)
**Author:** [@hcri50](https://forums.kodeco.com/u/hcri50)\ **Replies:** 2\ **Last updated:** [June 7, 2017, 4:30pm UTC](https://forums.kodeco.com/t/can-someone-please-tell-me-how-to-resolve-this-warning/30644 "2017-06-07T16:30:02Z")
Arrayā€™ during its initialization is never read I am trying to understand the meaning and I have no idea on how to approach the problem. For I am using the Array but it says that it is not being read. I just changed thā€¦ --- ## [iBook reader like UI](https://forums.kodeco.com/t/ibook-reader-like-ui/30610)
**Author:** [@kaungsoe](https://forums.kodeco.com/u/kaungsoe)\ **Replies:** 0\ **Last updated:** [June 7, 2017, 4:33am UTC](https://forums.kodeco.com/t/ibook-reader-like-ui/30610 "2017-06-07T04:33:52Z")
Hello, i want to build an app like iBook. I have book data from back end server and i populate them in collection view. What i want to do is when user select certain book, i want to show content of book in ui like iBook ā€¦ --- ## [TabViewController](https://forums.kodeco.com/t/tabviewcontroller/30603)
**Author:** [@baoempoli](https://forums.kodeco.com/u/baoempoli)\ **Replies:** 0\ **Last updated:** [June 6, 2017, 10:28pm UTC](https://forums.kodeco.com/t/tabviewcontroller/30603 "2017-06-06T22:28:49Z")
I need to pass variable fron two tabviewcontroller itemā€¦ what si the best way? --- ## [A better design pattern for lazy instantiation of child view controllers in a slide-out navigation app](https://forums.kodeco.com/t/a-better-design-pattern-for-lazy-instantiation-of-child-view-controllers-in-a-slide-out-navigation-app/30579)
**Author:** [@muclbahaloute](https://forums.kodeco.com/u/muclbahaloute)\ **Replies:** 1\ **Last updated:** [June 6, 2017, 3:31pm UTC](https://forums.kodeco.com/t/a-better-design-pattern-for-lazy-instantiation-of-child-view-controllers-in-a-slide-out-navigation-app/30579 "2017-06-06T15:31:49Z")
Hey everyone, Based on James Frostā€™s excellent tutorial on creating a slide-out navigation panel (https://www.raywenderlich.com/78568/create-slide-out-navigation-panel-swift) Iā€™ve been working on a version of that code ā€¦ --- ## [Built-in document scanner](https://forums.kodeco.com/t/built-in-document-scanner/30565)
**Author:** [@rufy](https://forums.kodeco.com/u/rufy)\ **Replies:** 0\ **Last updated:** [June 6, 2017, 9:55am UTC](https://forums.kodeco.com/t/built-in-document-scanner/30565 "2017-06-06T09:55:26Z")
Hi everyone, if you have seen the wwdc you know this feature, right? just question: there are also some OCR Api? and which are? --- ## [Drop Charge Platform Landing](https://forums.kodeco.com/t/drop-charge-platform-landing/30555)
**Author:** [@darkmatter](https://forums.kodeco.com/u/darkmatter)\ **Replies:** 1\ **Last updated:** [June 6, 2017, 1:27am UTC](https://forums.kodeco.com/t/drop-charge-platform-landing/30555 "2017-06-06T01:27:00Z")
Hey I am looking for a little clarification on how the platforms have physics bodies but the character is not affected by them when it is flying but can land on them when he is landing. What exactly is going on ? Sorry bā€¦ --- ## [How to debounce notification (swift3)](https://forums.kodeco.com/t/how-to-debounce-notification-swift3/30546)
**Author:** [@zalubski](https://forums.kodeco.com/u/zalubski)\ **Replies:** 0\ **Last updated:** [June 5, 2017, 8:23pm UTC](https://forums.kodeco.com/t/how-to-debounce-notification-swift3/30546 "2017-06-05T20:23:35Z")
If the start button is pressed my notification will go continue to go off every 30 seconds infinitely. I want to make it so that every time the user hits the start button the countdown is reset and the notification will ā€¦ --- ## [Masked Image not saving photo](https://forums.kodeco.com/t/masked-image-not-saving-photo/30457)
**Author:** [@zalubski](https://forums.kodeco.com/u/zalubski)\ **Replies:** 0\ **Last updated:** [June 2, 2017, 9:28pm UTC](https://forums.kodeco.com/t/masked-image-not-saving-photo/30457 "2017-06-02T21:28:07Z")
My code takes a photo and masks it on a imageview. However the mask effect is not saved with the photo. Just the standard photo is saved. import UIKit class ViewController: UIViewController, UINavigationControllerDelegā€¦ --- ## [Button that doesn't move while scrolling](https://forums.kodeco.com/t/button-that-doesnt-move-while-scrolling/30419)
**Author:** [@ghost6ix](https://forums.kodeco.com/u/ghost6ix)\ **Replies:** 1\ **Last updated:** [June 2, 2017, 8:58am UTC](https://forums.kodeco.com/t/button-that-doesnt-move-while-scrolling/30419 "2017-06-02T08:58:49Z")
How do i have a button on a view controller that doesnā€™t move while scrolling? --- ## [Expression was too complex to be solved in reasonable time; consider breaking up the expression into distinct sub-expressions](https://forums.kodeco.com/t/expression-was-too-complex-to-be-solved-in-reasonable-time-consider-breaking-up-the-expression-into-distinct-sub-expressions/30429)
**Author:** [@rufy](https://forums.kodeco.com/u/rufy)\ **Replies:** 0\ **Last updated:** [June 2, 2017, 8:52am UTC](https://forums.kodeco.com/t/expression-was-too-complex-to-be-solved-in-reasonable-time-consider-breaking-up-the-expression-into-distinct-sub-expressions/30429 "2017-06-02T08:52:44Z")
This is my method that I use to popolate my DB. obvious, itā€™s not used by user, but I use it to popolate the sqlite file that import in the app. DataBaseManager.sharedInstance.insertKanji(WithData: \["kanji":"äø€", "radicaā€¦ --- ## [How to add a blur effect to a view such that the subview is not affected](https://forums.kodeco.com/t/how-to-add-a-blur-effect-to-a-view-such-that-the-subview-is-not-affected/30388)
**Author:** [@savitha\_2410](https://forums.kodeco.com/u/savitha_2410)\ **Replies:** 0\ **Last updated:** [June 1, 2017, 11:30am UTC](https://forums.kodeco.com/t/how-to-add-a-blur-effect-to-a-view-such-that-the-subview-is-not-affected/30388 "2017-06-01T11:30:37Z")
i have a view. on its, layer i have a videolayer. now i want to blur the video layer, which is done using blureffect and visualeffect view , but i want to have another view on top of the visual efffect which should not ā€¦ --- ## [Qeuestion about scene kit](https://forums.kodeco.com/t/qeuestion-about-scene-kit/30158)
**Author:** [@maverick01](https://forums.kodeco.com/u/maverick01)\ **Replies:** 2\ **Last updated:** [May 30, 2017, 2:47pm UTC](https://forums.kodeco.com/t/qeuestion-about-scene-kit/30158 "2017-05-30T14:47:08Z")
Hey everyone. Got a little problem with scene kit need some questions answered. Anyone know how to complete the second tutorial when it assigns a line before it is already made. If anyone can please help shoot me an E-mā€¦ --- ## [filteringMode nearest not working](https://forums.kodeco.com/t/filteringmode-nearest-not-working/30260)
**Author:** [@nehemie](https://forums.kodeco.com/u/nehemie)\ **Replies:** 0\ **Last updated:** [May 30, 2017, 2:11am UTC](https://forums.kodeco.com/t/filteringmode-nearest-not-working/30260 "2017-05-30T02:11:55Z")
Hi Everyone I used the extension available in the tutorial Beginning Tile Maps of the 2D Apple Games by Tutorial book (page 337) for my own plateform game and the " filteringMode = .nearest " keeps my sprites blurry. hā€¦ --- ## [Best numerical libraries to use in iOS development](https://forums.kodeco.com/t/best-numerical-libraries-to-use-in-ios-development/30239)
**Author:** [@oskrgab](https://forums.kodeco.com/u/oskrgab)\ **Replies:** 0\ **Last updated:** [May 29, 2017, 3:00pm UTC](https://forums.kodeco.com/t/best-numerical-libraries-to-use-in-ios-development/30239 "2017-05-29T15:00:37Z")
Hello, Iā€™m just starting in iOS development and my goal is to develop an engineering app that uses many matlab-like functions and algorithms. (numerical analysis, root finding, special functions, matrix operations, etc)ā€¦ --- ## [iOS app connect to website](https://forums.kodeco.com/t/ios-app-connect-to-website/30236)
**Author:** [@brower](https://forums.kodeco.com/u/brower)\ **Replies:** 2\ **Last updated:** [May 29, 2017, 7:42pm UTC](https://forums.kodeco.com/t/ios-app-connect-to-website/30236 "2017-05-29T19:42:56Z")
What resources are available for me to learn how to connect my app to a website like Facebook or Angieā€™s List or Ebay? --- ## [My setupCamera() line when i put it in the gameviewcontroller always tell me expected declaration how do i fix it it's for sceneKit tutorial 2](https://forums.kodeco.com/t/my-setupcamera-line-when-i-put-it-in-the-gameviewcontroller-always-tell-me-expected-declaration-how-do-i-fix-it-its-for-scenekit-tutorial-2/30210)
**Author:** [@maverick01](https://forums.kodeco.com/u/maverick01)\ **Replies:** 0\ **Last updated:** [May 29, 2017, 4:23am UTC](https://forums.kodeco.com/t/my-setupcamera-line-when-i-put-it-in-the-gameviewcontroller-always-tell-me-expected-declaration-how-do-i-fix-it-its-for-scenekit-tutorial-2/30210 "2017-05-29T04:23:17Z")
Need help fixing my encoding like the setupCamera() line just under scnScene() keeps saying expressed declaration. Thatā€™s in scene Kit Tutorial 2 How do I pass this point. i need some help. [Previous page](https://forums.kodeco.com/c/general/16.md?page=77) [Next page](https://forums.kodeco.com/c/general/16.md?page=79)