Bobby Prabowo

Bopbi’s mind

I’m Bobby, an Android Dev and (still) an app hobbyist

Current Project

• QRGen : QR Code Generator for Android

Recent TIL

Jetpack Compose: Debugging recomposition

Date: 2025/05/25

Three Phase in Compose

1. Composition: What UI to show, building tree of composables
2. Layout: Where to Place UI, layout take those composables and works out where on the screen they will be shown
3. Drawing: How it renders, Draw everything to screen

Compose can skip a phase entirely if nothing has changed in it

Prefer lambda modifiers when using frequently changing state, the video show case is using the scroll provider lambda over y property when performing translation, and reading the state inside the graphicsLayer

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Android Api Level

Date: 2025/01/03

Since i often forget to about the name of the Version, the codename and the site is include the play store requirement changes, and major library info

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How to Test Conflating Stateflow

Date: 2024/12/15

Separate assert and code triggering into 2 different set of coroutine launch

• the first one is for assertion, the launch should use UnconfinedTestDispatcher
• the other (last) one is for trigger the code / sequence / logic

Please note that when using flow the code triggering should still use a separate launch and not inside the test block

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