Hello, this sounds plausible. How can I skip this Error without ending the function? Thanks for answers

Works Great!

What do you use, if you don't pass to children? self.

I just needed to change the Background Color on the other ViewControllers. Why is the FILLED Button loading directly with background color on the first ViewController but on the other not?

I´m calling the readNFC function which is in ViewControllerB from MainController. The readNFC function normally calls function didDetectNDEFs or didInvalidateWithError. I have in both functions a print("...") but I don't get it printed into the Terminal/ Console. Because of that, I think that the readNFC function doesn't calls the other.

Hello Claude, here the code: https://stackoverflow.com/questions/71744250/corenfc-reader-and-writer-in-one-viewcontroller

I tried but a NFC Reader and Writer in one ViewController doesn't worked like this. Read and Write NFC always calls the function that writes NFC NDEF messages on the Tag. My Code: https://stackoverflow.com/questions/71744250/corenfc-reader-and-writer-in-one-viewcontroller

I know but is there a way to use the iPhone like an NFC Chip which gets read from a NFC Terminal? Like Apple Pay: The NFC Terminal reads the NFC Apple Pay information from the iPhone.

Does this just block Apple Pay or also NFC? (I need to use NFC but always when I use it Apple Pay instead of NFC shows up)