AI BriefingA New Developer's Concurrency Story - Kotlin Edition
Key point
This covers a Main-Safe concurrency approach using Kotlin Coroutines for a smooth user experience in Android apps.
Details
For users to feel a smooth app experience, the app must maintain 60 frames per second, which requires completing one frame's worth of work every 16ms. If a long-running task such as network communication or DB operations occupies the main thread, it can cause screen stuttering or an ANR, so a Main-Safe design that does not block the main thread is essential.
Kotlin Coroutine offers better readability than the traditional callback approach, solving the 'callback hell' problem. It is also advantageous in terms of performance compared to the multi-thread approach, as it reduces unnecessary thread creation and blocking.
Coroutines are implemented through the CPS (Continuation Passing Style) paradigm. When calling a suspend function, the Kotlin compiler transforms the code to pass a Continuation, enabling efficient asynchronous processing.
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