How to design friction in an iOS app to prevent accidental action?

I am designing an app for iOS where I need to prevent the user from unintentionally trigger an alarm (the action of calling for emergency should be easily accessible, but at the same time it should prevent any accidental initiation).

I don't want to use a confirmation dialog since it requires the user to read and looking for a button in a different position (it seems like too much friction on the other side).

To use a 'slide to' action button occurred to me initially as an good idea, similar to what was/is used to unlock an iPhone screen, but then I run into this topic: Creating a “Slide to power off” like slider on iOS, basically saying that Apple discourages usage of these kinds of components, and they refuse to publish such an app in the store.

Do you have any experience with this kind of user scenarios? Or do you have experience with Apple refusing to publish your app for such reasons?