macOS app development for iOS devs: expand your horizons

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Julia Vashchenko macOS Engineer at • Languages: Objective-C, Swift, C++ • Platforms: macOS, iOS • Technologies: inter-process communication, daemons & agents, multithreading, GUI apps iaronskaya

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Why macOS? Beneﬁts of coding for macOS for iOS developers

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iOSMac

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iOSMac See also: https://speakerdeck.com/steipete/hacking-marzipan

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iOSMac

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https://developer.apple.com/macos/

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Many great apps can be written for macOS!

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Does anyone write for macOS?

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Seamless transition 1. Familiar IDE: Xcode 2. Same language stack: Swift, Objective-C, C++, C 3. Well-known frameworks 4. More possibilities

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Seamless transition 1. Familiar IDE: Xcode 2. Same language stack: Swift, Objective-C, C++, C 3. Well-known frameworks 4. More possibilities

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iOS & macOS: alike and different

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UIKit vs AppKit

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UIApplication

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UIApplication NSApplication

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UIView

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UIView NSView

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UITableView

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UITableView NSTableView

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100 days of OSX Development video tutorials

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100 days of OSX Development video tutorials

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100 days of OSX Development video tutorials

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UIWindow

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UIWindow NSWindow

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UIWindow NSWindow ↑ UIResponder ↑ NSObject UIView ↑

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UIWindow NSWindow ↑ UIResponder ↑ NSObject UIView ↑ ↑ NSResponder ↑ NSObject

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UITableView NSTableView UIScrollView UIView UIResponder ↑ ↑ ↑

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UITableView NSTableView UIScrollView UIView UIResponder ↑ ↑ ↑ NSControl NSView NSResponder ↑ ↑ ↑

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NSControl

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NSControl

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NSControl

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NSCollectionView

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NSCollectionView Works a lot diﬀerently than UICollectionView

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CALayer of the view: ﬁnd 3 differences

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CALayer of the view: ﬁnd 3 differences

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CALayer of the view: ﬁnd 3 differences

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CALayer of the view: ﬁnd 3 differences

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Core Animation

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Core Animation

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Core Animation

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Core Animation

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Coordinate system

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Coordinate system

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Coordinate system

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Coordinate system myView.isFlipped = true

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Why so many differences?

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iOS & macOS history

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OS X

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OS X [ɔes ten]

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1984 1985 1986 1987 System 1 System 2 System 3 System 4 System 5: Macintosh System Software

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1988 1989 1990 1991 System 6 System 7

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1992 1993 1994 1995 Mac OS 7.5.1 Mac OS 8

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1996 1997 1998 1999 Apple acquires NeXT Mac OS 9

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2000 2001 2002 2003 Mac OS X 10.0 Cheetah, 10.1 Puma Mac OS X 10.2 Jaguar Mac OS X 10.3 Panther

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2004 2005 2006 2007 Mac OS X 10.4 Tiger Mac OS X 10.5 Leopard iPhone 1 launch

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2008 2009 2010 2011 Mac OS X 10.6 Snow Leopard Mac OS X 10.7 Lion

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2012 2013 2014 2015 Mac OS X 10.8 Mountain Lion Mac OS X 10.9 Maverics Mac OS X 10.10 Yosemite Mac OS X 10.11 El Capitan

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2016 2017 2018 2019 macOS 10.12 Sierra macOS 10.13 High Sierra macOS 10.14 Mojave ?

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System 1

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System 6

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System 6

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System 7

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Mac OS 9

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Mac OS 9

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Mac OS X

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Mac OS X 10.5

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macOS speciﬁcs

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macOS speciﬁcs Distribution out of App Store

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macOS speciﬁcs Distribution out of App Store Living out of the Sandbox

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macOS speciﬁcs Distribution out of App Store Living out of the Sandbox Obtaining root privileges

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macOS speciﬁcs Distribution out of App Store Living out of the Sandbox Obtaining root privileges Using command-line tools

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macOS speciﬁcs Distribution out of App Store Living out of the Sandbox Obtaining root privileges Using command-line tools Scripting other apps

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macOS speciﬁcs Distribution out of App Store Living out of the Sandbox Obtaining root privileges Using command-line tools Scripting other apps ...

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Demo

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PDP: Personal Development Plan https://gist.github.com/aronskaya/7daa8d2bf77d60c65d35f91c6316e8f0

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Any Questions?

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Thank you! email: [email protected] twitter: iaronskaya