Talk about minor new APIs and features from this year’s WWDC. Presented on BAiOS Meetup in Bratislava on 26 June 2019.

1. WWDC19
API Tidbits
Martin Kiss |kish| @Tricertops PixelCut s. r. o.
BAiOS Bratislava Meetup 26 June 2019

2. What you might have overlooked?

3. UIView.transform3D
// Animatable

4. UISearchBar.searchTextField
class UISearchTextField

5. .continuous.circular
CALayer.cornerCurve

6. Looping Animations
UIView.animate(withDuration: 0.7) {
}
// Will run for 4.2 seconds
UIView.modifyAnimations(
withRepeatCount: 3
autoreverses: true) {
alpha = 0
}

7. Rounded Table Style
.insetGrouped.grouped

8. UIImage.withTintColor()

9. class UITableView DiffableDataSource
class UICollectionView DiffableDataSource
UI Data Sources
// Based on data snapshots
// Automatic insert/delete/move

10. NSScreen.maximumReferenceExtendedDynamicRangeColorComponentValue
// Longest property name ever?

11. MKMapView.pointOfInterestFilter
.airport
.bakery
.gasStation
.nationalPark
...
MapKit POI Filtering

12. New System Fonts
SF Mono
SF Pro Rounded
New York

13. Date.now

14. Array.difference(from:)
// Finds insertions/removals

15. class RelativeDateTimeFormatter
“ 2 days ago ”
“ in 4 hours ”
“ next month ”
“ tomorrow ”

16. OperationQueue.addBarrierBlock { … }
// Similar to dispatch_barrier_async()

17. Core Haptics
Framework for haptic feedback

18. Metric Kit
Framework for analyzing app usage

19. Core Image Filters
CIFilter.gaussianBlur()
CIFilter.qrCodeGenerator()
CIFilter.whitePointAdjust()
CIFilter.kaleidoscope()
...

20. Core Image Filters
CIFilter(
name: "CIMotionBlur",
parameters: [
kCIInputRadiusKey: 10,
kCIInputAngleKey: CIAngle.pi,
])
let filter = CIFilter.motionBlur()
filter.radius = 10
filter.angle = .pi

21. Accelerate in Swift
• Basic arithmetic
• Number conversions
• Signal transforms
• Image processing
Operations on large arrays of numbers

22. Accelerate in Swift
vForce.sqrt(array)
vDSP.multiply(img1, img2)
vDSP.convertElements(ints, &flts)
Operations on large arrays of numbers
UP TO
25×
FASTER

23. Thank You
Questions?
Martin Kiss |kish| @Tricertops PixelCut s. r. o.
BAiOS Bratislava Meetup 26 June 2019