Kotlin: the swift of Android

on YouTube ↗49m

" summary

Kotlin installs as an Android Studio plugin, converts Java activities automatically, and compiles to JVM bytecode while remaining interoperable with Java; examples show a two‑button app and a small dynamic “time in two locations” app built with a DSL for dynamic layouts that renders and caches views and mostly works with minor hiccups. Key claims: inline lambdas avoid anonymous‑class overhead for performance, nullable types prevent many NPEs, and the Android extensions plugin generates cached synthetic properties instead of repeated findViewById calls. Version 1.0 and binary compatibility are pending.

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" chapters (8)

1. 0:00Start
2. 1:10Is Kotlin Specifically Designed for Android
3. 10:02Demo
4. 17:34Extension Functions
5. 31:30Extensions Improving the Android Android Experience
6. 34:17Default Parameters
7. 36:26Layout
8. 38:32Syntactic Sugar for Lambda

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