Kotlin Android debounce

Question

Is there any fancy way to implement debounce logic with Kotlin Android?

I\'m not using Rx in project.

There is a way in Java, but it is too big

Answer 1

A more simple and generic solution is to use a function that returns a function that does the debounce logic, and store that in a val.

fun  debounce(delayMs: Long = 500L,
                   coroutineContext: CoroutineContext,
                   f: (T) -> Unit): (T) -> Unit {
    var debounceJob: Job? = null
    return { param: T ->
        if (debounceJob?.isCompleted != false) {
            debounceJob = CoroutineScope(coroutineContext).launch {
                delay(delayMs)
                f(param)
            }
        }
    }
}

Now it can be used with:

val handleClickEventsDebounced = debounce(500, coroutineContext) {
    doStuff()
}

fun initViews() {
   myButton.setOnClickListener { handleClickEventsDebounced(Unit) }
}