Updating WatchKit app when containing iOS app's data changes

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I've been reading the Apple Watch Programming Guide and I made some examples of requesting data from the WatchKit extension to the containing app and getting back the result. But what if I want to communicate in the opposite direction? I mean, let's say I have my iOS app in foreground and I refresh there some data, and then I want the WatchKit app to update its user interface according to its paired iOS app just refreshed data. How could I do this? Should I launch a local notification from the iOS app to the WatchKit app and then request the new data from it, or is there any other (and better) way?

Thanks

asked 45 secs ago

AppsDev

1,263

Updating WatchKit app when containing iOS app's data changes