How can I detect that my a website/PWA has been loaded into the foreground?

I have a Progressive Web App for Ipad written in React, and I’d like to detect when a user reloads the app after switching to another. Is there a browser event or serrvice worker event I can subscribe to for when the app is reloaded?

Along a similar thread, is there a way to tell that a progressive web app has been force closed and reopened?

Thanks

38 thoughts on “How can I detect that my a website/PWA has been loaded into the foreground?”

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