WWDC Overview

WWDC 2016

Anat Gilboa & Jesse Clayburgh

AmEx Core Mobile

XCODE 8 OVERVIEW

Interface Builder Source Editing

Debugging Automatic Signing

INTERFACE BUILDER

> Zoom capabilities

> !> Updated Size Class Bar

SOURCE EDITING EXTENSIONSCAPABILITIES:

* Add commands to the editor* Edit text* Change selections* Several commands for an extension

JUST HAVE TO SET THE XCSOURCEEDITORCOMMANDINVOCATION IN INFO.PLIST AND IMPLEMENTING THIS PROTOCOL:

public protocol XCSourceEditorCommand : NSObjectProtocol { public func perform(with invocation: XCSourceEditorCommandInvocation, completionHandler: (NSError?) -> Void) -> Void }

> Signed with your Dev Profile and distributed in the App Store...

> Only question left is... is this the end of Alcatraz? (third-party extension/plugin manager for Xcode

plugins)

DEBUGGING

VIEW DEBUGGING

> Now supports blur rendering> Navigator filtering

AUTOLAYOUT DEBUGGINGAMBIGUOUS LAYOUTS ARE REPORTED AS RUNTIME ISSUES

> listed in the Issue Navigator> Highlighted in the activity viewer, explained in the size

inspector

THREAD SANITIZER* Like ASan (Address Sanitizer), finds memory corruption issues* Finds data races, thread leaks, unsafe calls in signal handlers* via Apple: 1. Edit Scheme – Diagnostics tab 2. “Enable Thread Sanitizer” checkbox 3. Build and Run 4. View all of the generated runtime issues 5. Can choose to break on every issue* The more runtime coverage, the better * Would be a good idea to run them on our tests

MEMORY GRAPH DEBUGGING* New tool to find leaked and abandoned memory* Two graph styles * Root paths * Cycles* Logging integration available

NEW SIGNING MODESAUTOMATICALLY

CREATES A SIGNING CERTIFICATE

CREATES AND UPDATES APP IDS

CREATES AND UPDATES PROVISIONING PROFILES

NEW SIGNING MODECUSTOMIZED

> Manually created profiles only

APPLE RECOMMENDS USING AUTOMATIC

> Hopefully all of our signing troubles will go away...

SWIFT 3 & FOUNDATIONLANGUAGE

* swift* swift-evolution

PACKAGE MANAGER* swift-package-manager* swift-llbuild

CORE LIBRARIES

* swift-corelibs-xctest* swift-corelibs-foundation* swift-corelibs-libdispatch

SWIFT LANGUAGE ADDITIONS:MAJOR UPDATES:

* Naming Guidelines (driven by SE-0005, SE-0006, SE-0023) * Strive for clarity-not terseness or verbosity * Capture essential information * Omit redundant information

THE GREAT RENAMINGarray.appendContentsOf([2,3,4])array.insert(1, atIndex: 0)

turns intoarray.append(contentsOf: [2,3,4])array.insert(1, at: 0)

THE GREAT RENAMING PT 2

Givenfunc myFunction(a: Int, b: Int, c: Int) { }myFunction(42, b: 57, c: 99)

turns intomyFunction(a: 42, b: 57, c: 99)

STRINGLY TYPED OBJECTIVE-C CONSTANTS (SE-0033)

for constants defined astypedef NSString *NSNotificationName NS_EXTENSIBLE_STRING_ENUM;const NSNotificationName NSUserDefaultsDidChangeNotification;

What used to be:let NSUserDefaultsDidChangeNotification: String

turns intoextension UserDefaults { class let didChangeNotification: NSNotification.Name}

UNSAFEPOINTER NULLABILITY (SE-0002)

What used to be:let ptr : UnsafeMutablePointer<Int> = nilif ptr != nil { ptr.memory = 42}

turns intolet ptr : UnsafeMutablePointer<Int>? = nilif let ptr = ptr { ptr.memory = 42}

COLLECTION INDEXING (SE-0065)i = collection.startIndexnext = i.successor()

turns intoi = collection.startIndexnext = collection.index(after: i)

3D TOUCH !

PEEK + POP

Peek - content “preview” of additional content

PEEK + POP

Peek Quick Action

PEEK + POP

> Pop - commit to viewing that content + navigating to it

ENABLING FOR WEB VIEWS

WKWebView/UIWebView can enable via allowsLinkPreviewProperty

SFSafariViewController implements peek & pop automatically

UIPREVIEWINTERACTION

> Advanced control of 3D touch interaction> Exposes force processing & haptic feedback to your

own user interface

UIPREVIEWINTERACTION

Conform to UIPreviewInteractionDelegate Protocol

func previewInteraction(_ previewInteraction: UIPreviewInteraction, didUpdatePreviewTransition transitionProgress: CGFloat, ended: Bool)

HOME SCREEN QUICK ACTIONS

> Static & defined in a plist or dynamic & defined at app’s first launch

> Can have both, but max of 4. Dynamic options appear after Static

> Contain System Icon, Custom Icon, or Address Book Contact Image

UIKitNEW INTERRUPTIBLE ANIMATION ANIMATION SUPPORT FOR

UIViewPropertyAnimator

> Allows users to retain control of animations and link them with gesture-based interactions

> New timing parameters: quadratic, cubic and spring

UIKit

> UIRefreshControl and UITableViewDataSourcePrefetching for

UICollectionViews

SPEECH RECOGNITIONNEW API THAT SUPPORTS CONTINUOUS SPEECH

RECOGNITIONlet recognizer = SFSpeechRecognizer()let request = SFSpeechURLRecognitionRequest(url: audioFileURL)recognizer?.recognitionTask(with: request, resultHandler: { (result, error) in print (result?.bestTranscription.formattedString)})

SPEECH RECOGNITIONUSING APIS IN SPEECH.FRAMEWORK, YOU CAN PERFORM SPEECH

TRANSCRIPTION

> Data is temporarily stored on Apple's servers to increase the accuracy of speech recognition

WATCH OS3 ⌚

WATCH OS3

> Main goal: 2 seconds or less per interaction> Major UI Enhancements:

Launch apps from complications & new dock (replaces friends screen & glances)

Swipe edge-to-edge to change watch faces with their own individual complications

WATCH BACKGROUND TASKS

> Background App Refresh WKApplicationRefreshBackgroundTask

Update app state in watch background so it’s much faster on launch


> Background Snapshot Refresh WKSnapshotRefreshBackgroundTask

Update user interface in background: can push, pop, or present other interface controllers.


> Background Watch Connectivity> Paired iPhone can receive info & launch app in

background, passing info.WKWatchConnectivityRefreshBackgroundTask

handleBackgroundTasks:


> Workout apps can now run in background> Launch your watchOS workout app from your iOS app startWatchAppWithWorkoutConfiguration:comp

letion:

COMPLICATIONS

Complications are small visual elements that appear directly on watch face.

* Launch apps right from tapping the complication * Watch face complication tells the system to keep the

associated app in a ready-to-launch state. * Guaranteed to receive 50 push updates per day.

APPLE PAY

> In-app paymentsSecurely provide payment and contact information to

pay for physical goods and services PKPaymentAuthorizationController

CROWN ACCESS

WKCrownSequencer

> Current state of the digital crownWKCrownDelegate

> Receive notifications as the user rotates the crown

FRAMEWORK INCLUSION

> Scenekit> SpriteKit

AUTOLAYOUTAUTORESIZING MASKS

> If a view doesn't have constraints, the autoresizing masks will work views with constraints

> need to set translatesAutoresizingMaskIntoConstraints

== true> Otherwise if a view has constraints, then the

autoresizing masks are ignored

AUTOLAYOUTDESIGN AND RUNTIME CONSTRAINTS

> Designate intrinsic content size> Turn off ambiguity per view w/runtime constraints

AUTOLAYOUTLAYOUT FEEDBACK LOOP

> A new way to find out which views are involved in a loop

> following argument passed on launchUIViewLayoutFeedbackLoopDebuggingThreshold

SIRIKIT !

SIRIKIT

Let Siri play with your app!

> Intents + Intents UI> Current SiriKit Support for domains of:

1. Audio or video calling2. Messaging3. Sending or receiving payments4. Searching photos5. Booking a ride6. Managing workouts

SIRIKIT

> An Intents extension communicates your app’s content to Siri and Maps and performs the tasks associated

with any supported intents.> Optional UI extension for custom interface for your

content within the Siri or Maps interface. This extension is optional.

SIRIKIT

User Request —> Intent Object —> Response Object

APPLE FILE SYSTEMDESCRIBED AS A "NEXT-GENERATION FILE SYSTEM

FOR APPLE PRODUCTS"SUPPOSED TO BE OPTIMIZED FOR SSD/FLASH BUT CAN ALSO BE

USED WITH TRADITIONAL HDDS.* Supports: * Cloning of Files and Directories * Exposed CoreOS API `int copyfile(const char *from, const char *to, copyfile_state_t state, copyfile_flags_t flags);` `int fcopyfile(int from_fd, int to_fd, copyfile_state_t, copyfile_flags_t flags);` * Snapshots * Fast Directory Sizing * Atomic Safe-Save

APPLE PAY !

APPLE PAY

> Present card from within app> Dynamic payment networks

> New sandbox testing environment> PassKit support for Apple Pay in places where UIKit is

not available> Apple Pay on web with Apple Pay JS

NOTIFICATIONS

NOTIFICATIONS

> User Notifications framework (UserNotifications.framework)

> Notification delivery based on time or location> User Notifications UI framework

> Modify push payload after delivery

NOTIFICATIONS

UNNotificationServiceExtension

> Runs in background> Modify or replace the notification’s payload

> Download content> Decrypt notification

NOTIFICATIONS

User Notification UI Framework

RECOMMENDED TALKS

> Understanding Swift Performance> Server-Side Swift

> Swift API Design Guidelines> Optimizing App Startup Time

> Thread Sanitizer and Static Analysis> Debugging Tips and Tricks

> Concurrent programming with GCD

THANKS!

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