Execute code on main thread in Android without access to an Activity?

Question

I have an Android service that starts and maintains a background thread.

From time to time, the background thread needs to do a callback on the main thread. I\'m stu

Answer 1

If you code in Kotlin you can use coroutine with Main dispatcher:

private fun runOnUiThread(block: () -> Unit) {
    CoroutineScope(Dispatchers.Main).launch { block.invoke() }
}

Of-cause coroutines should added to your project as a dependency.