This allows validating values entered into Textfield and displaying any invalid entries as errors. It allows the user to submit details only after correct values are entered into Fields.

A powerful, fluidly animated, and compact custom textfield for SwiftUI. Your all in one textfield for forms and search bars; validate text entry on the fly, designate visual cues for textfield content, and inspire users with a unique experience.

This Xcode project demonstrates a solution for validating the input of text fields in a SwiftUI app.

iOS validation framework with form validation support

A UITextField that easy validate text of UITextField.

TextField Restriction Validation

AAVerifier - OTP Code Input

CSV (Comma-Seprated-Values) can be used instead of .txt files using Swift, CSV files have speciality that they can be seen as Excel Sheet format.

A rule-based validation on textfield for Swift