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Watch kit pitfalls. developing iOS app for Dribbble.

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Agilie Team
Agilie Team

This document discusses developing an iOS app using the Dribbble API and WatchKit. It provides information on setting up OAuth authentication with the Dribbble API, common HTTP response codes, API rate limits, and WatchKit app architecture. It also covers techniques for communication between the WatchKit extension and iOS app like openParentApplication, App Groups, and Handoff.

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WatchKit Pitfalls Developing iOS App for Dribbble Zgonik Vova
Register your application Website URL Callback URL Client ID Client Secret Client Access Token https://dribbble.com/account/applications/new
OAuth2 solutions NXOauth2Client GTMOAuth2 Detailed error handling Block callbacks No response body on auth error NSNotificationCenter
Dribbble API understanding of HTTP response codes 422 Unprocessable Entity 400 Bad request 500 Internal server error 403 Operation is forbidden upload shot or attachment without mimeType follow more than 1800 followers follow own userId incorrect parameter name upload limit: - 48 shots per month - 5 shots per day access denied (canUplodShot = NO) 429 Too many requests 304 Content not modified 404 Not found 204 No content API restrictions: 60 requests per minute 10000 requests per day no like shot, like comment transaction entry found no following transaction entry 束A follows B損 found presence of transaction entry for user 束A follows user B損 response on delete request for: like comment, like shot if the resource has not changed in conditional request with parameter If-Modified-Since POST incorrect JSON
Watch kit pitfalls. developing iOS app for Dribbble.
Requests Rate Limiting low-priority check if like shot check if follow user 60 per minute 10000 per day high-priority account request switch & load category of shots like shot follow user
Apple Watch
watchOS App WatchKit App WatchKit app Target Storyboard Resources WatchKit Extension WatchKit extension target WatchKit code and Resources WatchKit App IOS App iOS app target iOS Code WatchKit Extension WatchKit app stores on watch device and consist of storyboard and static resources (images, fonts) WatchKit Extension stores on iPhone and consist of source and resources all source executes on iPhone, without iPhone Watch app wont launch
NOT SURE OF WHAT IS GOING ON HERE
iPhone Extension Communication Glance Notification WKInterfaceController Apple Watch WatchKit App Storyboard Resources WatchKit Extension Code Resources WatchKitWatchKit
WatchKit Launch Flow Launch WatchKit APP Load initial interface controller Initialize UI Display UI Storyboard Interface controller init willActivate user launches app on watch watchKit finds initial controller in storyboard and notifies iPhone watchKit Extension should be launched and specified class of controller is instantinated WatchKit Extension
Watch kit pitfalls. developing iOS app for Dribbble.
Glance no interactive items: buttons, switches no vertical scrolling San Francisco system font only Apple doesnt recommend use maps and tables
Notification short look no interactive items: buttons, switches, sliders allow different typefaces of system font allow change tint color with app Name
Notification long look system stuff application content action defined in watch app two types activation mode: background & foreground
openParentApplication:reply: App Groups Darwin-notification Handoff WatchKit Extension and App Communication Communication model classes, web services, credentials restricted API: ! any API marked with NS_EXTENSION_UNAVAILABLE ! calls to UIApplication +sharedApplication ! access the camera or microphone on an iOS device ! receive data using AirDrop Sharing code
openParentApplication API on watch App [WKInterfaceController openParentApplication:reply:] API on main application: implement (:handleWatchKitExtensionRequest:reply:) main app launches in background error handling available - slower than other methods + API calls time increases - objects should conform <NSCoding>
App Groups com.apple.security.application-groups entitlement initWithSuiteName: (NSUserDefaults) containerURLForSecurityApplicationGroupIdentifier: (NSFileManager) - main app cant notify watch about new data
Darwin-notifications Exchange messages between processes in iOS by means of Darwin-notifications pod MMWormHole Sending process Notification notifyd routines allow processes to exchange stateless notification events process 1 process 2 process 3 Client processesnotification is just a signal it can't transport any data apart from the notification identifier
Handoff NSUserActivity in main apps Info.plist perform updateUserActivity:userInfo:webpageURL: in WKInterfaceController handle activity event in AppDelegate: - application:willContinueUserActivity - application:continueUserActivity:restorationHandler
Shot Bucket App
ApiClient AppDelegate ShotsViewController WKInterfaceControllerWatch App Main App Core structure ShotsController Data source Networking ShotBucketCore Framework App Models Oauth2Clients Api Clients ActionManager
Gallery on WatchKit
. . . . . . . . . Gallery on WatchKit reloadRootControllersWithNames: contexts: swipe Initial Interface Controller swipe 12:0012-0012-00 12-00 Load more Modal controller 12-00Close ContentContent More pictures?
Page-based Controller Life Cycle Changes
Watch kit pitfalls. developing iOS app for Dribbble.
Smart personalized notifications without backend Background fetch Conditional request Last-Modified: Sat, 22 Feb 2014 17:10:33 GMT HTTP/1.1 304 Not ModifiedHTTP/1.1 200 OK Local notification No action
BG Fetch issues - [UIApplication performFetchWithCompletionHandler:] UIBackgroundFetchResult UIBackgroundFetchResultNewData UIBackgroundFetchResultNoData UIBackgroundFetchResultFailed
Watch kit pitfalls. developing iOS app for Dribbble.
https://github.com/agilie/dribbble-ios-sdk

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Watch kit pitfalls. developing iOS app for Dribbble.

  • 1. WatchKit Pitfalls Developing iOS App for Dribbble Zgonik Vova
  • 2. Register your application Website URL Callback URL Client ID Client Secret Client Access Token https://dribbble.com/account/applications/new
  • 3. OAuth2 solutions NXOauth2Client GTMOAuth2 Detailed error handling Block callbacks No response body on auth error NSNotificationCenter
  • 4. Dribbble API understanding of HTTP response codes 422 Unprocessable Entity 400 Bad request 500 Internal server error 403 Operation is forbidden upload shot or attachment without mimeType follow more than 1800 followers follow own userId incorrect parameter name upload limit: - 48 shots per month - 5 shots per day access denied (canUplodShot = NO) 429 Too many requests 304 Content not modified 404 Not found 204 No content API restrictions: 60 requests per minute 10000 requests per day no like shot, like comment transaction entry found no following transaction entry 束A follows B損 found presence of transaction entry for user 束A follows user B損 response on delete request for: like comment, like shot if the resource has not changed in conditional request with parameter If-Modified-Since POST incorrect JSON
  • 6. Requests Rate Limiting low-priority check if like shot check if follow user 60 per minute 10000 per day high-priority account request switch & load category of shots like shot follow user
  • 8. watchOS App WatchKit App WatchKit app Target Storyboard Resources WatchKit Extension WatchKit extension target WatchKit code and Resources WatchKit App IOS App iOS app target iOS Code WatchKit Extension WatchKit app stores on watch device and consist of storyboard and static resources (images, fonts) WatchKit Extension stores on iPhone and consist of source and resources all source executes on iPhone, without iPhone Watch app wont launch
  • 9. NOT SURE OF WHAT IS GOING ON HERE
  • 10. iPhone Extension Communication Glance Notification WKInterfaceController Apple Watch WatchKit App Storyboard Resources WatchKit Extension Code Resources WatchKitWatchKit
  • 11. WatchKit Launch Flow Launch WatchKit APP Load initial interface controller Initialize UI Display UI Storyboard Interface controller init willActivate user launches app on watch watchKit finds initial controller in storyboard and notifies iPhone watchKit Extension should be launched and specified class of controller is instantinated WatchKit Extension
  • 13. Glance no interactive items: buttons, switches no vertical scrolling San Francisco system font only Apple doesnt recommend use maps and tables
  • 14. Notification short look no interactive items: buttons, switches, sliders allow different typefaces of system font allow change tint color with app Name
  • 15. Notification long look system stuff application content action defined in watch app two types activation mode: background & foreground
  • 16. openParentApplication:reply: App Groups Darwin-notification Handoff WatchKit Extension and App Communication Communication model classes, web services, credentials restricted API: ! any API marked with NS_EXTENSION_UNAVAILABLE ! calls to UIApplication +sharedApplication ! access the camera or microphone on an iOS device ! receive data using AirDrop Sharing code
  • 17. openParentApplication API on watch App [WKInterfaceController openParentApplication:reply:] API on main application: implement (:handleWatchKitExtensionRequest:reply:) main app launches in background error handling available - slower than other methods + API calls time increases - objects should conform <NSCoding>
  • 18. App Groups com.apple.security.application-groups entitlement initWithSuiteName: (NSUserDefaults) containerURLForSecurityApplicationGroupIdentifier: (NSFileManager) - main app cant notify watch about new data
  • 19. Darwin-notifications Exchange messages between processes in iOS by means of Darwin-notifications pod MMWormHole Sending process Notification notifyd routines allow processes to exchange stateless notification events process 1 process 2 process 3 Client processesnotification is just a signal it can't transport any data apart from the notification identifier
  • 20. Handoff NSUserActivity in main apps Info.plist perform updateUserActivity:userInfo:webpageURL: in WKInterfaceController handle activity event in AppDelegate: - application:willContinueUserActivity - application:continueUserActivity:restorationHandler
  • 22. ApiClient AppDelegate ShotsViewController WKInterfaceControllerWatch App Main App Core structure ShotsController Data source Networking ShotBucketCore Framework App Models Oauth2Clients Api Clients ActionManager
  • 24. . . . . . . . . . Gallery on WatchKit reloadRootControllersWithNames: contexts: swipe Initial Interface Controller swipe 12:0012-0012-00 12-00 Load more Modal controller 12-00Close ContentContent More pictures?
  • 25. Page-based Controller Life Cycle Changes
  • 27. Smart personalized notifications without backend Background fetch Conditional request Last-Modified: Sat, 22 Feb 2014 17:10:33 GMT HTTP/1.1 304 Not ModifiedHTTP/1.1 200 OK Local notification No action
  • 28. BG Fetch issues - [UIApplication performFetchWithCompletionHandler:] UIBackgroundFetchResult UIBackgroundFetchResultNewData UIBackgroundFetchResultNoData UIBackgroundFetchResultFailed