This repository provides two apps illustrating how to perform inter-process communicaiton using App Groups.
- GroupedFileSenderApp: writes continuously fake glucose data to the
glucoseValues.txtin the "group.kuq" group. - GroupFileReceiverApp: observes these changes in realtime.
iOS does not provide inter-app communication. Notificaiton Center notificaitons are not broadcasted. In MaCOSX DistributedNotificaitonCenter can be used to send notificaitons between processes. However, this is not available in iOS.
One workaround is using coordinated file writes and observations using App Groups. App Groups are shared direcotries that can be accessed by application that share the same group capability
Apps can write to these common files and observe changes to these files. Another alternative are Darwin notifications. Which are not part of this project (see further reading).
This project is free of use
This code is based on discussions on stackoverflow: https://stackoverflow.com/questions/27011916/how-to-communicate-between-ios-app-containing-extension-and-extension-not-host https://stackoverflow.com/questions/64446024/ios-14-nsfilepresenter-not-getting-callbacks-notifications-works-on-ios13
Darwin Notificaitons: https://stackoverflow.com/questions/27011916/how-to-communicate-between-ios-app-containing-extension-and-extension-not-host This repository might do something like this. https://github.com/p-x9/DistributedNotificationCenter/tree/main