# Jetpack Compose (Android)

> Declarative UI with Compose: Composables, State, Recomposition, Layouts, Modifiers, Navigation and Side Effects

- 28 interview questions
- Mid-Level
- [Interview Questions: Android](https://sharpskill.dev/en/technologies/android/interview-questions.md)

## 1. What is Jetpack Compose?

**Answer**

Jetpack Compose is Google's modern toolkit for building native Android UI declaratively. It simplifies and accelerates UI development using Kotlin. Compose is progressively replacing traditional XML Views.

## 2. What is a Composable function?

**Answer**

A Composable function is a function annotated with @Composable that describes a part of the UI. It can only be called from other Composables. Compose calls these functions to build and update the UI.

## 3. What is 'remember' used for in Jetpack Compose?

**Answer**

The remember function allows a value to be retained between recompositions of a Composable. Without it, local variables are reset on each recomposition. It keeps the value in memory as long as the Composable remains in the composition.

## 25 more questions available

- What is the difference between 'remember' and 'rememberSaveable'?
- What is State in Compose?

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## Other Android interview topics

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