Android, pausing and resuming handler callbacks

Question

I have a handler that I am using as follows:

handler.postDelayed(Play, 1000);

when my application onPause() is called before this is done,

Answer 1

Modifying the answer given by CpcCrunch. There handleMessage not worked for me, so instead of it using dispatchMessage. Note: Below code is written in Kotlin:

class CustomHandler: Handler() {

    var s = Stack()
    var is_paused = false

    @Synchronized
    fun pause() {
        is_paused = true
    }

    @Synchronized
    fun resume() {
        is_paused = false
        while (!s.empty()) {
            sendMessageAtFrontOfQueue(s.pop())
        }
    }

    override fun dispatchMessage(msg: Message?) {
        if (is_paused) {
            s.push(Message.obtain(msg))
            return
        } else {
            super.dispatchMessage(msg)
        }
    }
}