Core Nfc

If you're building iOS apps that need to scan NFC tags, this covers the CoreNFC framework from basic NDEF reads to tag-specific protocols like ISO7816 and MIFARE. You'll find working examples for both simple use cases (reading a URL from a tag) and advanced scenarios (writing NDEF messages, handling background tag reading). The setup section walks through the entitlements and Info.plist configuration that always trips people up on first implementation. Targets Swift 6.3 and iOS 26+, which is forward-looking but the patterns hold for earlier versions. The code samples show proper session lifecycle management and error handling, which matters because NFC sessions fail in weird ways if you don't invalidate them correctly.