When to call activateSession() on WCSession object
问题 I wonder at what point one would call activateSession() on a WCSession object on the watch and on the iOS device. In the documentation it says: Always assign a delegate and activate your session before calling any session-related methods. The session must be configured and activated before sending messages or obtaining information about the state of the connection. At first thought I put my code to initialise the session: if (WCSession.isSupported()) { session = WCSession.defaultSession()