mr5z

class CustomTimer(private val millisInFuture: Long, private val countDownInterval: Long) {

    private var millisUntilFinished: Long = millisInFuture
    private var timer = InternalTimer(this, millisInFuture, countDownInterval)

    private var isRunning = false
    var onTick: ((millisUntilFinished: Long) -> Unit)? = null
    var onFinish: (() -> Unit)? = null

    private class InternalTimer(