> A value computed by `remember` will be stored in the composition tree, and only be recomputed i...

# compose

[Mehdi Haghgoo]

A value computed by remember will be stored in the composition tree, and only be recomputed if the keys to remember change. -link

What is a key?

[Michał Jurczyk]

The value you pass as the param to remember:

remember(someValue) {  }

[Michał Jurczyk]

From the codelab:

val iconAlpha: Float = remember(todo.id) { randomTint() }
Icon(todo.icon.vectorAsset, tint = contentColor().copy(alpha = iconAlpha))

The random tint will only get randomised if the id changes, otherwise the first result of the calculation will be used

[Michał Jurczyk]

@Leland Richardson [G] does a good job explaining the concept here:

https://youtu.be/SMOhl9RK0BA?t=334▾