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Kotlin native for iOS and Android
Shady Selim, a senior software engineer with over 20 years of experience, presented on Kotlin/Native for iOS and Android, highlighting its advantages in app development. Kotlin, developed by JetBrains, offers concise syntax, interoperability with Java, and a significant reduction in boilerplate code. The presentation also covered tools like Jetpack Compose and SwiftUI, emphasizing their declarative benefits for user interface design.
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Kotlin native for iOS and Android
- 1. Kotlin/Native for iOSand Android 1 Presented By: Shady Selim, Senior Software Engineer March 18th, 2020
- 2. ● 20 yearsof experience in web and mobile development ● Official Google Speaker ● GDG Helwan & Kotlin Cairo User Group Founder & Leader ● Andela Senior Software Engineer ● Mentor in Udacity Nanodegree ● Mobile & Web Evangelist ● Technology savvy ● Think tank ● UI/UX freak 2 Speaker Bio
- 3. ● Native iOSand Android Languages ● Cross Mobile Languages ● What is Kotlin? ● Jetpack Componse ● SwiftUI ● Kotlin/Native 3 Index
- 4. Swift Kotlin Native iOSand Android Languages
- 5. OEM Widgets Cupertino Material Design Canvas Events LocationBluetooth Camera Sensors Java Kotlin Swift Objective-c Application Services OEM SDKs
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- 7. Class A ClassB Popular Cross Tools
- 8. Web View Canvas Events Location Bluetooth CameraSensors JavaScript HTML CSS Application Services Bridge Class A
- 9. Canvas Events Location Bluetooth Camera Sensors Transferred NativeCode Application Services FrameworklibrariesSDK OEM Widgets Cupertino Material Design Class B
- 10. Canvas Events Location Bluetooth Camera Sensors NativeARM Binary Code Application Services Platform Channels Flutter Widgets Cupertino Material Design Flutter Approach
- 11. So what isFlutter ? Flutter is the next step in App development Speed and performance Fast , smooth performance Flexibility Customize anything - Brand first design Native look and feel Familiarity , ease of use Rapid Development Easy to learn , predictable
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- 13. Kotlin History ⬝ Createdby Jetbrains on 2011 ⬝ Open sourced on 2012 ⬝ Reached version 1 on 2016 ⬝ Adopted by Google on 2017 ⬝ Google announce Kotlin as 1st Class language on 2017 ⬝ Google announce Android Kotlin 1st language on 2019
- 14. Kotlin is ⬝ Staticallytyped programming language targeting the JVM ⬝ Support for functional and OO paradigms ⬝ Pragmatic, safe, concise, great Java interop ⬝ Free and open-source ⬝ Drastically reduces the amount of boilerplate code ⬝ Having Lambda expression ⬝ Avoids entire classes of errors such as null pointer exceptions ⬝ Supported by Google
- 15. Kotlin Strength ⬝ Modelingthe data of your application concisely and expressively ⬝ Creating reusable abstractions using functional programming techniques ⬝ Creating expressive domain-specific languages (DSL) ⬝ Java interop ensures that all existing Java frameworks can be used ⬝ No rewrite required to start using Kotlin in existing codebase ⬝ Existing investment is fully preserved
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- 17. Jetpack Compose @Composable fun Greeting(name:String) { Text (text = "Hello $name!") } @Preview @Composable fun PreviewGreeting() { Greeting("Android") }
- 18. Jetpack Compose Benefits ⬝Build with the benefits that Kotlin brings -- concise, safe, and fully interoperable with the Java programming language. Designed to drastically reduce the amount of boilerplate code you have to write, so you can focus on your app code, and help avoid entire classes of errors. ⬝ Fully declarative for defining UI components, including drawing and creating custom layouts. Simply describe your UI as a set of composable functions, and the framework handles UI optimizations and updates to the view hierarchy under the hood.
- 19. Jetpack Compose Benefits-2 ⬝ Provide reusable building blocks that let you build custom widgets easier, and without starting from scratch. ⬝ Compatible with existing views so you can mix and match and adopt at your own pace with direct access to all of the Android and Jetpack APIs. ⬝ Material Design out of the box and animations from the start, so it’s easy to create beautiful apps that are full of motion. ⬝ Accelerate development with tools like live preview and apply changes.
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- 22. SwiftUI Benefits ⬝ DeclarativeSyntax ⬝ Design Tools ⬝ Native on All Apple Platforms ⬝ Easy to read and natural to write ⬝ Works seamlessly with new Xcode design tools to keep your code and design perfectly in sync ⬝ Automatic support for Dynamic Type, Dark Mode, localization, and accessibility
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- 24. Kotlin/Native ⬝ An SDK,not a framework ⬝ Reuse your business logic ⬝ Smooth interoperability with platform-specific code ⬝ Have a native UI ⬝ No lagging behind native platforms ⬝ Use the language you already know and love
- 25. 1 Code base, 2platforms
- 26. Resources and samples ⬝Main Page https://www.jetbrains.com/lp/mobilecrossplatform/ ⬝ Samples https://github.com/JetBrains/kotlin-native/tree/master/samples ⬝ Minimal Projects https://github.com/joreilly/PeopleInSpace https://johnoreilly.dev/2019/06/08/swiftui-meetings-kotlin-multip latform.html ⬝ MVVM Project Template https://moko.icerock.dev/
- 27. Codelabs and Workshop ⬝https://play.kotlinlang.org/hands-on/Targeting%20iOS%20and%20 Android%20with%20Kotlin%20Multiplatform/ ⬝ https://www.raywenderlich.com/1022411-kotlin-multiplatform-pr oject-for-android-and-ios-getting-started
- 28. 28 Cairo, Egypt Shady YehiaSelim shady.selim@andela.com /Shady-Selim /ShadySelim Senior Software Engineer
- 29. Interested in joiningAndela, Apply here: https://andela.com/JoinAndelaEgypt
- 30. ⬝ Mercy Orangi ⬝Reem Karara 3 0 Credits