WITH WATCHOS 3
DRIVING USER ENGAGEMENT
KRISTINA THAI
IOS SOFTWARE ENGINEER
⌚
@KRISTINATHAI

@KRISTINATHAI
USER ENGAGEMENT
🙋
📲🙋
🌧 🍝 🌇

@KRISTINATHAI
💇
???
💃 🏄
USER ENGAGEMENT

@KRISTINATHAI
⌚
Background
Tasks
Complications
Local
Notifications
USER ENGAGEMENT

COMPLICATIONS

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import ClockKit
class ComplicationController: NSObject, CLKComplicationDataSource {
// MARK: - Timeline Configuration
func getSupportedTimeTravelDirections(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTimeTravelDirections) -> Void) {
handler([.forward, .backward])
}
func getTimelineStartDate(for complication: CLKComplication, withHandler handler: @escaping (Date?) -> Void) {
handler(nil)
}
func getTimelineEndDate(for complication: CLKComplication, withHandler handler: @escaping (Date?) -> Void) {
handler(nil)
}
func getPrivacyBehavior(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationPrivacyBehavior) -> Void) {
handler(.showOnLockScreen)
}
// MARK: - Timeline Population
func getCurrentTimelineEntry(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTimelineEntry?) -> Void) {
// Call the handler with the current timeline entry
handler(nil)
}
func getTimelineEntries(for complication: CLKComplication, before date: Date, limit: Int, withHandler handler: @escaping ([CLKComplicationTimelineEntry]?) -> Void) {
// Call the handler with the timeline entries prior to the given date
handler(nil)
}
func getTimelineEntries(for complication: CLKComplication, after date: Date, limit: Int, withHandler handler: @escaping ([CLKComplicationTimelineEntry]?) -> Void) {
// Call the handler with the timeline entries after to the given date
handler(nil)
}
// MARK: - Placeholder Templates
func getLocalizableSampleTemplate(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTemplate?) -> Void) {
// This method will be called once per supported complication, and the results will be cached
handler(nil)
}
}

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Optional
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import ClockKit
class ComplicationController: NSObject, CLKComplicationDataSource {
// MARK: - Timeline Population
func getCurrentTimelineEntry(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTimelineEntry?) -> Void) {
// Call the handler with the current timeline entry
handler(nil)
}
func getTimelineEntries(for complication: CLKComplication, before date: Date, limit: Int, withHandler handler: @escaping
([CLKComplicationTimelineEntry]?) -> Void) {
// Call the handler with the timeline entries prior to the given date
handler(nil)
}
func getTimelineEntries(for complication: CLKComplication, after date: Date, limit: Int, withHandler handler: @escaping
([CLKComplicationTimelineEntry]?) -> Void) {
// Call the handler with the timeline entries after to the given date
handler(nil)
}
}

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func getCurrentTimelineEntry(for complication: CLKComplication, withHandler handler: @escaping
(CLKComplicationTimelineEntry?) -> Void) {
// Call the handler with the current timeline entry
handler(nil)
}

https://theswiftdev.com/2016/04/28/clockkit-complications-cheat-sheet/
CLKComplicationTemplate
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func getCurrentTimelineEntry(for complication: CLKComplication, withHandler handler: @escaping
(CLKComplicationTimelineEntry?) -> Void) {
// Call the handler with the current timeline entry
let template = CLKComplicationTemplateModularLargeStandardBody()
template.headerTextProvider = CLKSimpleTextProvider(text: “12:00-2:00PM”)
template.body1TextProvider = CLKSimpleTextProvider(text: "Lunch with Lucas")
template.body2TextProvider = CLKSimpleTextProvider(text: "Saru Sushi")
let timelineEntry = CLKComplicationTimelineEntry(date: Date(), complicationTemplate: template)
handler(timelineEntry)
}

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BACKGROUND
TASKS

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BACKGROUND TASKS
WKApplicationRefreshBackgroundTask⌚
WKSnapshotRefreshBackgroundTask📷
WKWatchConnectivityRefreshBackgroundTask📲
WKURLSessionRefreshBackgroundTask🌐

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WKApplicationRefreshBackgroundTask⌚
⌚ 🌐⌚
NSURLSession
📷⌚
Snapshots
Update app from background

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WKSnapshotRefreshBackgroundTask📷
Make updates to your app’s UI
Supporting up-to-date snapshots keeps your users informed

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WKURLSessionRefreshBackgroundTask🌐
🌐⌚
Trigger NSURLSession to update app from background

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WKWatchConnectivityRefreshBackgroundTask📲
📱⌚
Get latest data from iPhone via Watch Connectivity
📱⌚
Be a good battery/data citizen by pulling data from server only once
🌐

LOCAL
NOTIFICATIONS

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LOCAL NOTIFICATIONS
Like push notifications, but scheduled locally
Handled by UNUserNotificationCenter
(allows management of duplicates sent to both devices)

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// Create the content
let content = UNMutableNotificationContent()
content.title = NSString.localizedUserNotificationString(forKey: "Hello!", arguments: nil)
content.body = NSString.localizedUserNotificationString(forKey: "Hello_message_body", arguments: nil)
content.sound = UNNotificationSound.default()
// Deliver the notification in five seconds.
let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 5, repeats: false)
let request = UNNotificationRequest.init(identifier: "FiveSecond", content: content, trigger:trigger)
// Schedule the notification.
let center = UNUserNotificationCenter.current()
center.add(request)
Create scheduled local notification

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LOCAL NOTIFICATIONS
UNUserNotificationCenter
Create custom responses for your notifications

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Respond to custom notification action
func userNotificationCenter(_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: @escaping () -> Void) {
if response.actionIdentifier == "Complete" {
//Handle response here
}
}

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BOTTOM LINE
Use these to engage your user without any direct interaction
⌚
Background
Tasks
Complications
Local
Notifications

@KRISTINATHAI
RESOURCES
kristina.io/watchos-3-key-takeaways-from-wwdc16
kristina.io/watchos-3-key-takeaways-from-wwdc16-part-2

kristina.io
me@kristina.io
@kristinathai
THANK YOU
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