kt-coroutines-example1.kt

// Using the GlobalScope just as an example.
// For Android, should use the lifecycle scope so everything is stopped according to the lifecycle
GlobalScope.launch(Dispatchers.Main) { // Where the non-blocking code will run - Main Thread


    // "synchronous" call. All following code will run only when this blocks finish and return.
    val result1 = withContext(Dispatchers.IO) {// where this code will run - IO specific pool of threads
        // background thread
        // blocking or cpu intensive work
        // can return something
    }

    // Main Thread
    // eg. update UI

    // async code. This will run async and will not "block"
    val asyncResult = async {
        // background thread
        // can return something
    }

    // Main Thread
    // eg. update UI

    // wait for the execution and get the result
    val result2 = asyncResult.await()

    // Main Thread
    // eg. update UI
}