Build apps for Apple Watch
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BLINKAR TITLE WHO COMPANY FRANCESCO NOVELLI BUILD APPS FOR APPLE WATCH
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Transcript of Build apps for Apple Watch
BLINKAR
TITLE
WHO COMPANYFRANCESCO NOVELLI
BUILD APPS FOR APPLE WATCH
Who I am?
iOS Developer since 2009
Web Developer (LAMP)
Development Book Author
Freelance and Consultant
Apple Lovers
Agenda
What is it an Apple Watch?
SDK history
App
Notifications
Complications
Final thoughts
WHAT IS IT AN APPLE WATCH
“It's the most personal product we've ever made”
–Tim Cook
What is it an Apple Watch
Watch!
iPhone external device
Notification reader
Sport&Life tracker
FAST DEVICE
When user raise the wrist is import to show what REALLY matter
Users DO NOT want loading on wrist
Users DO NOT want tap more than 2 times to get what they want
SMALL DEVICE
Screen is tiny
Tapping is NOT the only solution
Input device are various
Microphone IS a solution for SOME problem, not every problem
APPLE SDK: WATCHKIT
watchOS 1
iOS-based OS
Native Apps with watchOS 2.0
iPhone connectivity framework
Need an iPhone companion app
watchOS 2Complications
iPhone connectivity framework
Time Travel
Watch execute its own apps & Apps works also without an iPhone
Apps can interact with “all” sensor of Watch
Simple animation allowed
NEW
NEW
watchOS 3Performance Performance Performance!
Dock Interface
NEW API
Background app refresh
Simplifying navigation
New Notification
NEW
PerformanceFullscreen app MAYBE NOT the best way to use your app
Preload data
Simplifying UI
Use ALL CPU you need
Simulate async things (if you are confident with the task)
Dock
User can dock your application
Easiest way to interact with your app
Show only important information
Simplifying the interaction
NEW API & FRAMEWORKS
SpriteKit
SceneKit
Inline Video
GameKit
CloudKit
Apple Pay
Digital Crown API
NEW Workout API
Speaker API
Background App Refresh
Use it for update snapshot of Docked App
Complications have 50 slot in a day
Normal apps has 24 updates in a day. (at least)
Choose the best time for the user
We can schedule or start refresh from push or iPhone
APPLE WATCH APPS
APPS
YOUR APP!
Apps: 2 components
The Watch app contains the storyboards and resource files associated with all of your app’s user interfaces.
The WatchKit extension contains the code for managing those interfaces and for responding to user interactions
Different between watchOS 1 and 2: WatchKit extension on watchOS 1 was on IPhone
Apps: 2 components
Code Files
StoryBoard, Images, Plists
Apps: User Interface
Based on Storyboard
Different From iOS: it’s NOT a white board
Xcode arranges items for you, stacking them vertically on different lines.
You can customize scenes for different Apple Watch sizes, and you can configure different aspects of your interface.
Apps: User Interface
Apps: User Interface
Apps: Navigation
Page-Based: storyboard
Hierarchical Interface: pushControllerWithName:
Modally: presentControllerWithName:
Apps: Context Menu?Optional
Force Touch to activate context menu
MUST follow Apple Watch HIG
Configurable with storyboard or Code (addMenuItemWithImage:title:action:)
Easy way to avoid too much modal interface
Apps: SettingsOnly on iPhone (Apple Watch App) with Settings Bundle
UserDefaults can be shared with iOS Companion app
Settings in iOS App
NSUserDefaults *defaults = [[NSUserDefaults alloc] initWithSuiteName:@"group.com.example.watchApp"];
BOOL enabled = [defaults boolForKey:@"enabled_preference"];
Apps: WatchConnectivity.framework
two-way communications between an iOS app and a Watch App
pass files and data back and forth
works in background also with inactive apps
Live communication if both apps are active
Simplifying Navigation
In watchOS 3 Apple has simplified their apps. It’s our turn
Digital Crown for simple interface
WKTable has new option
For 8 minutes last app used will be shown when user raise the wrist
Apps: Recap
Native apps that works on the Apple Watch (watchOS 2.0)
Keep interface simple and follow Apple HIG
Do not use only modal
Interact with iPhone App
NOTIFICATIONS
NotificationThe most important part of Apple Watch
Everyone will see notification on Apple Watch
Notification
Every apps works by default
iPhone will decide where show the notification
Developers can personalize notification
Users can interact with notification
Users must allow apps to send notification on their iPhones
Notification: Looks
Short-Look Interface (last only 2 seconds)
Long-Look Inteface (last until users dismiss the notification)
Notification: Short-Look
Can NOT be personalized
Show only when the user raise its wrist
Automatically show the Long-Look if the users keep watching the Apple Watch
Notification: Long-LookDeveloper can design its own notification
It’s scrollable
Show notification content and actions
Actions are the same of the iPhone Notification
Actions can support text reply
Notification: Actions
Must be set on the iPhone app
Setting activation mode background will execute code on iPhone
Foreground activation will open Watch app
Notification: Customize Long Notification
Must exist a static version of notification
Developers can create a dynamic version of notification with custom design
watchOS will try to show the dynamic version, but if it’s too slow will show the static version
Notification: Static
Can be personalized only the top band color and text formatting
watchOS will set only the label notificationAlertLabel with message of notification
Must be created using a storyboard
Notification: DynamicAll interface can be personalized
A subclass of WKUserNotificationInterfaceController configures the interface
Can include images and other UI controls
Use maps and table less possible
Do not include buttons, switches, or other interactive controls.
Notification: Dynamic HOW TO
- (void)didReceiveRemoteNotification:(NSDictionary *)remoteNotification withCompletion:(void(^)(WKUserNotificationInterfaceType interface)) completionHandler { // Get the aps dictionary from the payload. NSDictionary* apsDict = [remoteNotification objectForKey:apsKeyString]; // Set text of labels... NSString* titleString = [apsDict objectForKey:titleKeyString]; [self.titleLabel setText:titleString]; // Tell WatchKit to display the custom interface. completionHandler(WKUserNotificationInterfaceTypeCustom); }
Notification FROM the watch
NEW on watchOS 3
We can schedule right on the watch
Works also without an iPhone
App can decide in which device show the notification
App can demand decision to the OS
Notification: Recap
Notification are the most important things on Apple Watch
Can be personalized if exist an Apple Watch app
Provide a better experience with custom interface
Dynamic Interface must be fast to show or users won’t see your amazing interface
COMPLICATIONS
ComplicationsNEW in watchOS 2.0
It’s not an Apple name; exist from years in watch industries
Can be integrated in every apps
Various style based on clock interface
Uses ClockKit.framework
Apple Default Complications
Complications: Types
Complications: HOW TOWorks like a timeline
You need to preload information
Users can “time travel” with digital crown
Complications: Summary
Cannot load data when users raise its wrist or when start time traveling; must be preloaded
Preload cannot work for every complications
Refresh when whenever the app works
Keep data updates and show only useful things
Complications: More…
WWDC ’15 Session 209 Creating complications with ClockKit
ClockKit Framework Reference (developer.apple.com)
FINAL THOUGHT
Build Apple Watch Apps
Apple Watch is big opportunity for developers
Apple Watch users love to have their apps on the wrist
Different types of “apps”: choose the best one
Apple Watch is: small&fast device. Keep it in mind during UX Design
Thanks! Q&A Time
Francesco Novelli [email protected]
@if9
http://www.9lli.it/francesco
www.blinkar.com
