When I click a button in my apple watch app, I want to cancel a local notification that was scheduled by the iPhone app.
Right now, I'm sending information using the updateApplicationContext method to transfer info between the watch and the phone, and I cancel my local notifications through the didReceiveApplicationContext method.
Right now, didReceiveApplicationContext only gets called when the app is open. That means that the notification still appears if I haven't opened the app in the meantime. I need to make sure the notification doesn't appear even if I don't open the app.
Is there any way to call didReceiveApplicationContext in the background while the device is asleep or the app is not in the foreground?
No, for this you will have to check if the WatchKit extension's WCSession's reachable property is true/YES, and if it is use the one of the sendMessage APIs as these can wake the iOS app up in the background.