Building a Multiplatform Kotlin Library

on YouTube ↗30m

" summary

Shows how to build a real Kotlin Multiplatform library called multiplatform‑settings that wraps SharedPreferences & NSUserDefaults, uses expect/actual for platform bindings, and produces Android .aar and Kotlin/Native artifacts (klib/framework) consumable via Gradle/Maven. Implementation stays intentionally thin (adds a double-via-long workaround and iOS default‑value checks), includes a sample app proving it runs in a Droid app, and uses common Kotlin tests plus Robolectric and iOS simulator tests to validate behavior.

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" chapters (10)

1. 0:00Introduction
2. 1:19Code sharing in Kotlin
3. 4:50Expect actual declarations
4. 8:49Multiplatform Settings library
5. 13:52Library design lessons
6. 16:40Testing multiplatform code
7. 19:57Publishing Kotlin libraries
8. 20:38Challenges and future
9. 23:26Call to action
10. 24:09Q&A session

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