Practical WatchKit Development (UIKonf 2015)

Presentation at UIKonf 2015 in Berlin http://www.uikonf.com

Transcript

1. Practical WatchKit
   Development
   @claushoefele
   

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2. Kleinanzeigen TransitHopper
   

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3. WatchKit
   App
   WatchKit
   Extension
   iOS App
   WatchKit App vs Extension
   

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5. Interactive Notifications
   

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6. class TripDetailInterfaceController: WKInterfaceController {
   @IBOutlet private weak var map: WKInterfaceMap!
   override func awakeWithContext(context: AnyObject?) {
   super.awakeWithContext(context)
   ...
   }
   override func willActivate() {
   super.willActivate()
   ...
   }
   }
   

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7. map.addAnnotation(coordinate, withPinColor: .Red)
   let coordinateRegion =
   MKCoordinateRegionMakeWithDistance[...]
   map.setRegion(coordinateRegion)
   

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8. Tables
   

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9. Paging
   

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10. Hides when loading
    Off On
    

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12. WatchKit
    App
    WatchKit
    Extension
    Requesting Data
    

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13. WatchKit
    App
    WatchKit
    Extension
    iOS App
    openParentApplication()
    

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14. private func callParentApp() {
    let userInfo = ["input": "data"]
    WKInterfaceController.openParentApplication(userInfo) { replyInfo, error in
    println("reply \(replyInfo)")
    }
    }
    func application(_:handleWatchKitExtensionRequest:reply:)
    Calling the Parent App
    

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15. Handoff
    

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16. User Location Permissions
    WatchKit
    App
    WatchKit
    Extension
    iOS App
    When In Use
    Always
    

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17. WatchKit
    Extension
    iOS App
    Sharing
    Data
    

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19. let defaults = NSUserDefaults(suiteName: "group.com.claushoefele.T")!
    func updateObjectForKey(key: String, item: T) {
    let data = NSKeyedArchiver.archivedDataWithRootObject(item)
    defaults.setObject(data, forKey: key)
    }
    

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20. WatchKit
    Extension
    iOS App
    Signalling
    

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21. func sendDarwinNotification(identifier: String) {
    let darwinNotificationCenter = CFNotificationCenterGetDarwinNotifyCenter()
    CFNotificationCenterPostNotification(darwinNotificationCenter,
    identifier, nil, nil, 1);
    }
    CFNotificationCenterAddObserver
    

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22. Data Sync
    

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23. “A WatchKit app
    complements your iOS app;
    it does not replace it.”
    –Apple Watch HIG
    

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24. “Anything that could show
    the user a progress
    spinner (however briefly)
    is a failure on my part.”
    –David Smith
    

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25. “[…] many of us — 
    developers included — are
    still figuring out how this
    device fits into daily life […]”
    –M.G. Siegler
    

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26. Practical WatchKit
    Development
    @claushoefele
    http://slack.fiveminutewatchkit.com
    

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