AAD Jetpack Libraries & Modern Android Development Flashcards
6 cards from real AAD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 AAD Jetpack Libraries & Modern Android Development flashcards as text
What is the role of a Room Entity?
Answer: It defines a table in the SQLite database
A Room @Entity is a data class annotated to represent a table in the SQLite database, with each field mapping to a column.
Which Jetpack Compose function is used to remember a mutable state variable across recompositions?
Answer: remember { mutableStateOf() }
remember { mutableStateOf() } creates a state holder that Compose remembers across recompositions, triggering UI updates whenever the value changes.
What does the @Composable annotation indicate in Jetpack Compose?
Answer: The function describes UI that Compose can render and recompose
@Composable marks a function as a Compose UI function that describes part of the UI tree and can be recomposed by the Compose runtime when state changes.
Which WorkManager constraint ensures a task only runs when the device is connected to an unmetered network?
Answer: NetworkType.UNMETERED
NetworkType.UNMETERED in a Constraints builder ensures WorkManager only executes the task when the device is on a Wi-Fi or similar unmetered connection.
What is Hilt used for in Android Jetpack?
Answer: Dependency injection
Hilt is a Jetpack library built on Dagger that provides a standard way to perform dependency injection in Android apps with compile-time validation.
In Jetpack Navigation, which method safely passes data between destinations with type safety?
Answer: Safe Args generated directions classes
The Safe Args Gradle plugin generates type-safe Directions and Args classes so data is passed between Navigation destinations without manual Bundle parsing.