iOS 12 SMS Reading API?

Question

In Beta version of iOS 12 I have observed it gives OTP(from SMS) in keyboard suggestion.
So is there any API which they have created for developers ? Or that would just

Answer 1

Unfortunately, you can't read the full message, you can only read the verify-code in the message.

Swift:

@available(iOS 12.0, *)
public static let oneTimeCode: UITextContentType

myTextField.textContentType = .oneTimeCode

Objective-C:

UITextContentType const UITextContentTypeOneTimeCode NS_AVAILABLE_IOS(12_0);

myTextField.textContentType = UITextContentTypeOneTimeCode;

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These following verification code CAN be recognized by the system:

A pure number of lengths of 3-8

like : 123 1234 12345 666666 1234567 12345678 ...

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These following verification code CANNOT be recognized by the system:

(i).length of code is less than 3 or more than 8 (ii).include letters

like : 1 12 123a 9h7d 123456789 ...

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Others:

Security Code AutoFill will only works with System Keyboard. It will not work with custom keyboard.