# Android Compose Avançado (Android)

> Jetpack Compose avançado: custom layouts, performance, animações, gestos e testing

- 17 perguntas de entrevista
- Senior
- [Perguntas de entrevista: Android](https://sharpskill.dev/pt/technologies/android/perguntas-entrevista.md)

## 1. Como criar um Custom Layout no Compose?

**Resposta**

Usa-se a função Layout { measurables, constraints -> }. Ela permite medir os filhos com measurables.forEach { it.measure(constraints) }, depois posicioná-los com layout(width, height) { placeables.forEach { it.place(x, y) } }.

## 2. O que é SubcomposeLayout?

**Resposta**

SubcomposeLayout permite compor filhos dinamicamente com base nas restrições ou medições de outros filhos. Útil para layouts onde o tamanho de um elemento depende de outro (ex.: medir o header antes de compor o body).

## 3. Quais são as 3 fases do ciclo de vida do Compose?

**Resposta**

As 3 fases são: 1) Composition (criação da árvore de UI, execução de @Composable), 2) Layout (medição e posicionamento dos elementos), 3) Drawing (renderização na tela). Entender essas fases ajuda a otimizar a performance.

## Mais 14 perguntas disponiveis

- Para que serve derivedStateOf?
- Como otimizar as recomposições no Compose?

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