Debounce implementation

gistfile1.txt

import kotlinx.coroutines.*

class Debouncer(private val delayMs: Long = 300) {
    private var debounceJob: Job? = null

    fun submit(scope: CoroutineScope, action: () -> Unit) {
        debounceJob?.cancel()
        debounceJob = scope.launch {
            delay(delayMs)
            action()
        }
    }
}



/**---------Usage----------**/

val debouncer = Debouncer(500)

fun onTextChanged(newText: String) {
    debouncer.submit(CoroutineScope(Dispatchers.Main)) {
        performSearch(newText)
    }
}


/**-------- Debouncing with out debouncer; directly using on a click listener ***/

fun View.setDebouncedClickListener(intervalMs: Long = 600, onClick: (View) -> Unit) {
    var lastClickTime = 0L

    setOnClickListener {
        val currentTime = System.currentTimeMillis()
        if (currentTime - lastClickTime >= intervalMs) {
            lastClickTime = currentTime
            onClick(it)
        }
    }
}