You can use my helper method:
val profile = MutableLiveData<ProfileData>()
val user = MutableLiveData<CurrentUser>()
val title = profile.combineWith(user) { profile, user ->
"${profile.job} ${user.name}"
}
fun <T, K, R> LiveData<T>.combineWith(
liveData: LiveData<K>,
block: (T?, K?) -> R
): LiveData<R> {
val result = MediatorLiveData<R>()
result.addSource(this) {
result.value = block(this.value, liveData.value)
}
result.addSource(liveData) {
result.value = block(this.value, liveData.value)
}
return result
}