Android

Android Compose Advanced

Advanced Jetpack Compose: custom layouts, performance, animations, gestures, and testing

17 perguntas de entrevistaยท
Senior
1

How to create a Custom Layout in Compose?

Resposta

Use the Layout { measurables, constraints -> } function. It allows measuring children with measurables.forEach { it.measure(constraints) }, then placing them with layout(width, height) { placeables.forEach { it.place(x, y) } }.

2

What is SubcomposeLayout?

Resposta

SubcomposeLayout allows composing children dynamically based on constraints or measurements of other children. Useful for layouts where one element's size depends on another (e.g., measure header before composing body).

3

What are the 3 phases of the Compose lifecycle?

Resposta

The 3 phases are: 1) Composition (UI tree creation, @Composable execution), 2) Layout (measurement and placement of elements), 3) Drawing (rendering to screen). Understanding these phases helps optimize performance.

4

What is derivedStateOf used for?

5

How to optimize recompositions in Compose?

+14 perguntas de entrevista

Domine Android para sua proxima entrevista

Acesse todas as perguntas, flashcards, testes tecnicos, exercicios de code review e simuladores de entrevista.

Comece gratis