High Performance code sharing between Android, iOS and Web

Processor-intensive features such as video editing, ML, and sensor inputs require low-level optimization to run effectively within mobile apps. What are the challenges and alternatives when building high-performance, multi-platform code? In this session, we’ll cover the advantages of C++, Rust, and Kotlin when building shared libraries for both iOS and Android.

Video available here https://www.youtube.com/watch?v=Jh9KaWir3gM

Transcript

1. High performance code sharing between Android, iOS and Web. giolaq.dev
2. Giovanni Laquidara Developer Advocate @ Amazon Software Engineer in performance-critical software giolaq.dev
8. C++ CROSS-PLATFORM LANGUAGE FOR HİGH-PERFORMANCE APPLİCATİONS EXTENSİON OF C LARGE AND ACTİVE COMMUNİTY, LOT OF LİBRARİES AND FRAMEWORKS AVAİLABLE.
9. C++ ONE WORLD'S MOST POPULAR PROGRAMMİNG LANGUAGES. OBJECT-ORİENTED PROGRAMMİNG PORTABLE
10. // Header file #include <iostream> using namespace std; // Main() function: where the execution of program begins int main() { // prints hello world cout << "Hello World"; return 0; }
11. // pointer to int: int *pi; // pointer to const int: const int *pci; . . . // constraint error pi = pci // dangerous but permitted pi = (int *)pci;
12. C++ in iOS app First class citizen on iOS.
13. C++ in iOS app https://docs.fileformat.com/programming/mm/
14. Bridging Header https://developer.apple.com/documentation/swift/importing- objective-c-into-swift
16. C++ in Android app Android Studio helps Download and install many tools • Cmake • NDK • Gradle • LLDB
17. Using JNI
18. DJINNI https://github.com/Snapchat/djinni
19. https://eng.snap.com/improving_djinni
20. DJNNI Demo From: https://eng.snap.com/cross_platform_messaging_experience
21. Kotlin MODERN, CONCİSE AND İNTEROPERABLE BY JETBRAİNS TO İMPROVE EXPERİENCE ON JVM NULL SAFETY, COROUTİNES, AND TYPE İNFERENCE. ANDROİD APPS DEVELOPMENT.
22. Kotlin in iOS https://kotlinlang.org/docs/apple-framework.html#xcode-for-ios-targets
23. Kotlin in Android • De Facto Native Language today over 70 of Google's apps are built using Kotlin
24. Kotlin Multiplatform
25. Kotlin Multiplatform
26. Rust HİGH-PERFORMANCE SYSTEMS PROGRAMMİNG LANGUAGE BY MOZİLLA AS SAFER AND MORE EFFİCİENT ALTERNATİVE TO C AND C++ MEMORY AND THREAD SAFETY NO GARBAGE COLLECTOR 7TH YEAR İN A ROW 'MOST-LOVED LANGUAGE’ İN STACK OVERFLOW
28. Rust delivers the energy efficiency of C without the risk of undefined behavior. We can cut energy use in half without losing the benefits of memory safety.
29. https://aws.amazon.com/blogs/opensource/sustainability-with-rust/
30. Rust in iOS app
32. Rust in Android app Android Studio helps Download and install many tools • Cmake • NDK • Gradle • LLDB
33. Rust in Android app
34. FFI https://doc.rust-lang.org/nomicon/ffi.html
35. UNIFFI https://mozilla.github.io/uniffi-rs/
36. Cross-platform Rust for Android and iOS Demo
37. https://www.artificialworlds.net/blog/2022/07/06/building-cross- platform-rust-for-web-android-and-ios-a-minimal-example/
38. https://www.youtube.com/watch?v=-hGbMp0sBvM
39. Benchmark - Speed • C++ faster than Rust • Rust faster than Kotlin
40. Benchmark - Memory Rust memory optimization
41. Analysis Sieve of Erathostenes https://en.wikipedia.org/wiki/Sieve_of_Eratosthenes
42. Choosing…. FAST PERFOMANCE EASY TO FİND DEVELOPERS HARD TO FIND SKİLLED DEVELOPERS SAFETY CAN BE AN İSSUE COMPLEXİTY OF INTEGRATİON – USE DJNNI
43. Choosing…. LESS PERFOMANT EASY TO FİND DEVELOPERS İN THE ANDROİD WORLD SİMİLARİTY WİTH SWIFT SAFE EASY TO IN USE MULTİPLATORM MODE
44. Choosing…. SAFE! HIGH PERFOMANCE INTEGRATİON LIKE C++ (UNIFFI) READY FOR WEB ( WASM ) STEEP LEARNING CURVE MOST LOVED GOOD DEPENDENCY SYSTEM ( A BETTER NPM )
45. My 2 cents
46. Thanks! giolaq.dev