使用Handkit和Watchkit将iPhone应用程序带到前台

I have a simple project where the user taps a button on the Apple Watch and some audio plays on the iPhone, this is easy enough to do with the openParentApplication method and having the handleWatchKitExtensionRequest code in AppDelegate. However, while this works in the simulator, it will NOT work on the actual devices if the iPhone app is not already open. I'm trying to find if it's possible to use other methods, that will work even if the iPhone app isn't already open.I have a simple project where the user taps a b