Sobes.tech
Junior — Middle

Can you explain what the LaunchedEffect component in Jetpack Compose is?

sobes.tech AI

Answer from AI

LaunchedEffect is an effect in Jetpack Compose that launches a coroutine on first composition or when the key changes. It is used for executing side effects, such as asynchronous operations, that should run in response to state changes.

Example usage:

LaunchedEffect(key1 = someState) {
    // This block will run on first composition and when someState changes
    val data = fetchData()
    // update UI state
}

Thus, LaunchedEffect helps to launch coroutines tied to the lifecycle of the composition and automatically cancels them when the component is destroyed or the key changes.