I am creating an iPhone app with Xcode swift, but how do I implement an implicit Int on Android?

Because iOS does not have the same general-purpose inter-application collaboration capabilities as Int, it is often impossible to do exactly the same with "implicit Int."

However,

If the notification button appears, click
Copy to Clipboard, Drive, Mail...
and then return to the main menu.

to select and then returning to the main menu

If that's the case, it's similar to the common share button in iOS apps, so Activity will almost achieve the desired behavior.

As I mentioned in the beginning, there is a big difference between iOS and Android, so there is a high possibility that you will have to modify both the functional design and UI design. Why don't you first examine whether iOS's activity features meet your app's requirements?

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