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Sharing data between watchOS and IOS in xcode12

Hi
I am trying to build an app which can send data between my i-watch and iphone, however the lessons seems quite outdate and the extension are no longer support xcode 12, are there any suggestion of how could I build a connection? or should I keep continue the lesson…

Hello and welcome to the forum community @gleung! I’m not sure which lesson you are referring to but I did find this sample code from Apple that may help: Using Watch Connectivity to Communicate Between Your Apple Watch App and iPhone App.

Best,
Gina