Somehow, the `withTimeout` doesn’t work on iOS without `runBlocking`. Is there another way round?

# coroutines

[sunbreak]

Somehow, the withTimeout doesn’t work on iOS without runBlocking. Is there another way round?

[basher]

Nope. It requires an event loop from runBlocking or a custom main-thread only Dispatcher

[sunbreak]

@basher Thanks a lot. Maybe custom NSRunLoop works？

https://kotlinlang.slack.com/archives/C3PQML5NU/p1551199801143200?thread_ts=1551199133.141600&cid=C3PQML5NU

[basher]

You can try it! What is it you're trying to accomplish?

[sunbreak]

https://kotlinlang.slack.com/archives/C1CFAFJSK/p1567165041063300

[sunbreak]

As Observable.timeout is not available now, I’d like to implement it with withTimeout

[basher]

This is for general usage on the main thread or background?

[sunbreak]

Generally it is supposed to be backgroud. But we can use it on the main thread for now.

[basher]

For main thread, if you can't use runBlocking and only need it on apple platforms, I would implement a CoroutineDispatcher that also implements Delay via GCD that only dispatches blocks to the main queue. Then, you should be able to use all of that. For background: github.com/autodesk/CoroutineWorker

[basher]

I personally haven't tested out the GCD-driven dispatcher approach yet, but it should work fine with the native threading model, and I've seen references to other folks trying it (main thread only though)

[sunbreak]

Thank you so much. I tried with GCD on iOS and Handler.postDelayed on Android, and both work. I’ll take this way for now.

[sunbreak]

github.com/autodesk/CoroutineWorker looks promising. I’ll try it next feature version