I would like to create a complication for watchOS 3 that will simply launch my App. I have used XCode to create the ComplicationController: class ComplicationController: NSObject, CLKComplicationD...

I'm working on an app that share data between iPhone and Apple Watch, using WCSession method sendMessage:replyHandler:errorHandler: After implementing that method I get the error like: WCSession ...

In my project, I use Watch Connectivity to send messages to and from the Watch and iPhone. I can send a message to the phone and receive an array of strings when launching the app, however when usi...

When using SpriteKit in watchOS 3, how do you handle the touch events? I am porting the SpriteKit games from iOS and the codes below won't work. Or you have to control the WKInterfaceController som...

I'm using the WatchOS 3 beta and trying to initiate a local notification on the watch. The interface is just one button which calls the "buttonPushed" method in the code below. The app runs fine bu...

I'm working on a complication to get scheduled data from a web service. Every 20-30 minutes (or manually), I am scheduling a WKRefreshBackgroundTask to do this. As suggested by Apple, I want the ...

Since iOS 10.3, developers can set alternative icons which is very nice. Is it supported in the companion watchOS app? My app was recently rejected due to this. Specifically, we noticed that f...

Update location when a task is triggered when the app in background. But unable to execute a task with background mode. My sample code with scheduleBackgroundRefreshWithPreferredDate is as below [...

I need to open my watch extension from my parent iOS app. I have seen a similar feature implemented in Nike+ Run Club app. ie, When the User taps on Start button in Parent app will open the watch ...

According to the App Programming Guide for watchOS it is possible to store data in a Documents folder in the watch app. My code also seems to be doing this sucessfull, as there are no errors. How...

I am building a very simple workout app on WatchOS: One of it functions is to give audio feedback during the training. I am able to play a file when the display is on, but when the display is dark,...

I want to dynamically load tiles and display them on a SCNSphere. Of course I can assign a UIImage to the SCNMaterial: sphere.firstMaterial!.diffuse.contents = image However that means that I'v...

I want to update my watch app state in background from iPhone, using session.updateApplicationContext(applicationContext). Sending an application contact while the app on the watch is active does...

I have built an Apple Watch App which uses CLLocation to track the users location. The idea of the app is for it to work using the built in GPS and not need the phone. When I run the watch app it ...

I have finally (ignoring the sample code which I never saw work past "application task received, start URL session") managed to get my WatchOS3 code to start a background URL Session task as follow...

During testflight review, I run into the following issue: From Apple 2. 3 PERFORMANCE: ACCURATE METADATA Performance - 2.3 We were unable to install the app extension on an Apple Watch runni...

I'd like to access the live heart rate at in my apple watchOS app. In the keynote they emphasized that developers can access the live data now. But I can't find anything about it in the documentati...

I am trying to build an app that supports multiple complication families on watch OS2 like modular large, utilitarian large, circular small etc, each showing various meaningful information from the...

For watchOS 3, Apple suggests updating the complication with WKRefreshBackgroundTask instead of using getNextRequestedUpdateDate. How can I determine the time between two updates using the new app...