https://developer.apple.com/design/human-interface-guidelines/ios/user-interaction/undo-and-redo/ Undo and Redo アンドゥとリドゥ Many apps allow people to shake the device to undo and redo certain operations, such as typing or deleting. Wh…

https://developer.apple.com/design/human-interface-guidelines/ios/user-interaction/near-field-communication/ Near Field Communication 近距離コミュニケーション Near Field Communication (NFC) enables devices within very close proximity—withi…