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Building apps that play nicely with other apps
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Bryan Irace
November 21, 2013
Programming
1
400
Building apps that play nicely with other apps
Given at the NYC CocoaPods meetup ("Cocoa Kucha") on November 20, 2013.
Bryan Irace
November 21, 2013
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Transcript
Building apps that play nicely with other apps Bryan Irace
Intents Contracts
…URLs?
URLs have shortcomings Like manually, explicitly defining all interactions between
apps
We can fix some of these shortcomings • Documentation !
• Discovery
We can fix some of these shortcomings • Time spent
writing client code ! • Bugs
CocoaPods
It’s OK to be selfish Provide code that helps others
integrate with you
Tumblr iOS SDK github.com/tumblr/ TMTumblrSDK
x-callback-url.com [scheme]://x-callback-url/ [action]?[x-callback parameters]&[action parameters] Used in Byword, Drafts, Instapaper,
Google Maps, Google Chrome, TextExpander, and many more
Please actually implement the “callback” part
URLs tumblr://x-callback-url/blog? blogName=bryan&postID=43724939726 ! tumblr://x-callback-url/text? title=Title&body=Body&tags=gif&tags=lol Hope others both find
and properly implement them
+ (void)viewBlog:(NSString *)blogName; ! + (void)createTextPost:(NSString *)title body:(NSString *)body tags:(NSArray
*)tags success:(NSURL *)successURL cancel:(NSURL *)cancelURL; pod install TMTumblrSDK
UIActivityViewController
@implementation TMTumblrActivity ! - (NSString *)activityTitle { return @"Tumblr"; }
! - (UIImage *)activityImage { return [UIImage imageNamed:@"UIActivityTumblr"]; } ! - (void)performActivity { // Open Tumblr app or hit API directly } pod install TMTumblrSDK
UIDocumentInteractionController
+ (UIDocumentInteractionController *)presentInteractionControllerWithURL:(NSURL *)URL caption:(NSString *)caption tags:(NSArray *)tags fromBarButtonItem:(UIBarButtonItem *)item
{ UIDocumentInteractionController *controller = [UIDocumentInteractionController interactionControllerWithURL:URL]; controller.UTI = @"com.tumblr.photo"; controller.annotation = @{ @"TumblrCaption" : caption, @"TumblrTags" : tags }; ! [controller presentOpenInMenuFromBarButtonItem:item animated:YES]; return controller; } pod install TMTumblrSDK
Publish an official API client Every app is different. Make
it easy for developers to hit your API directly if they’d prefer.
Subspecs • TMTumblrSDK/URLSchemes ! • TMTumblrSDK/Activity ! • TMTumblrSDK/DocumentInteraction !
• TMTumblrSDK/APIClient • TMTumblrSDK/APIClient/Authentication Don’t make developers include more code than they want to
Summary You should make it easy for developers to integrate
with your app ! Providing code via CocoaPods is obviously the best way to do so com/jobs