Kotlin Standard Library Cookbook

How to do it...

1. Let's start by creating a sample User class that implements the Parcelable interface using the @Parcelize annotation:

@Parcelizedata class User(val name: String, val address: Address): Parcelable@Parcelizedata class Address(val street: String,                    val number: String,                    val city: String): Parcelable

2. Verify serialization and deserialization of the User class instance by writing and reading it from the Bundle instance:

@Testfun testUserParcelisation() {    // given    val originalUser = User("Bob", Address("Rue de Paris", "123",     "Warsaw"))    val bundle = Bundle()    // when    bundle.putParcelable("my_user", originalUser)    // then    val deserialisedUser = bundle.get("my_user") as User    assertEquals(originalUser, deserialisedUser)}