SaaS- SDK as a service - Speaker Deck

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SaaS SDK as a Service

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Things to share: • Who is the customer and how that affected our choices • Compatibility • The environment

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Are you my customer?

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Are you my customer?

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Which platforms and versions to support? Which technologies to use?

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iOS Version Statistics …of user devices

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iOS Version Statistics …of apps in App Store Min. iOS 9.0 Min. iOS 8.0 Min. iOS 7.0 Min. iOS 6.0

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– Swift.org https://developer.apple.com/swift/blog/?id=2 “It would be dangerous to rely upon binary frameworks that use Swift — especially from third parties.”

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iOS 8.0 + iOS 7.0 + Objective-C Swift Open source only Open source only, copy code

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Compatibility

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New Version of App User Updates the App New Version of App User Updates the App New Version of SDK auto-updates auto-updates may never happen…

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Forward Compatibility • v1.0 might be out there forever • What would happen when it stops working? • There will be new features, or versions of features…

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Backwards Compatibility • Can’t afford breaking changes on backend • Public API - breaking changes only if needed

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Mind your surroundings • Device • Arbitrary project and its conﬁguration • Arbitrary UI hierarchy

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• No Swift - No Modules. Preﬁx classes, to avoid duplicate symbols • -ObjC is evil (-force_load is good) • NSLog…

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Windows • A window on top of everything • Window level is important. UIWindowLevelNormal = 0; UIWindowLevelStatusBar = 1000.0; UIWindowLevelAlert = 2000.0; UIWindowLevel CSKConciergeWindowLevel = 500; UIWindowLevel CSKConciergeAnnotationsWindowLevel = 10000000;

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Keyboard Web iOS 9 iOS 8

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Status Bar • Separate window takes over status bar. • UIViewControllerBasedStatusBarAppearance does not make it easier. + (void)setPreferredMainStatusBarStyle:(UIStatusBarStyle)statusBarStyle; + (void)setShouldPreferStatusBarHidden:(BOOL)hidden;

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Rotation • No control over rotation • If an orientation is not supported by the app, it will never go there. • Have to support all

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Localization • What if app not localized? • Bundle language

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Things we learned • Remember your customer • Look into future, but remember the past • Always mind the surroundings

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Thanks! https://live.gotoassist.com Marina Gornostaeva  @hybridcattt