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kotlinlang

Hey guys :wave: can someone clarify something for me, I've been trying to give coroutines a go, but I feel how I've got it _working_ might not be 100% right

```
class MainActivity : AppCompatActivity() {

    suspend fun fetchTextRemote() = async {
        URL("<https://httpbin.org/ip>").openConnection().getInputStream().bufferedReader().readText()
    }

    fun fetchText() = async(UI) {
        maintext.text = fetchTextRemote().await()
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        fetchText()
    }
}
```

the `async(UI)` is not necessary
You can replace it by `launch(UI, CoroutineStart.UNDISPATCHED)`

As you don't need the result and it doesn't require an immediate dispatch.

when you say it doesn't require an immediate dispatch, as in, it could be executed at the leisure of the event loop?

launch(UI), is basically posting runnable to a handler.
No dispatch means that code is executed immediately

but right after the `await()`, execution is dispatched to the UI thread