Repository: Root-vb/OTPFieldView
Branch: master
Commit: ed198372acc9
Files: 14
Total size: 43.0 KB

Directory structure:
gitextract_1c6mpg_h/

├── LICENSE
├── OTPFieldView/
│   ├── Info.plist
│   ├── OTPFieldView.h
│   ├── OTPFieldView.swift
│   └── OTPTextField.swift
├── OTPFieldView.podspec
├── OTPFieldView.xcodeproj/
│   ├── project.pbxproj
│   ├── project.xcworkspace/
│   │   ├── contents.xcworkspacedata
│   │   ├── xcshareddata/
│   │   │   └── IDEWorkspaceChecks.plist
│   │   └── xcuserdata/
│   │       └── vaibhavbhasin.xcuserdatad/
│   │           └── UserInterfaceState.xcuserstate
│   └── xcuserdata/
│       └── vaibhavbhasin.xcuserdatad/
│           └── xcschemes/
│               └── xcschememanagement.plist
├── OTPFieldViewTests/
│   ├── Info.plist
│   └── OTPFieldViewTests.swift
└── README.md

================================================
FILE CONTENTS
================================================

================================================
FILE: LICENSE
================================================
MIT License

Copyright (c) 2019 Vaibhav Bhasin

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


================================================
FILE: OTPFieldView/Info.plist
================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleDevelopmentRegion</key>
	<string>$(DEVELOPMENT_LANGUAGE)</string>
	<key>CFBundleExecutable</key>
	<string>$(EXECUTABLE_NAME)</string>
	<key>CFBundleIdentifier</key>
	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>$(PRODUCT_NAME)</string>
	<key>CFBundlePackageType</key>
	<string>FMWK</string>
	<key>CFBundleShortVersionString</key>
	<string>1.0.1</string>
	<key>CFBundleVersion</key>
	<string>$(CURRENT_PROJECT_VERSION)</string>
</dict>
</plist>


================================================
FILE: OTPFieldView/OTPFieldView.h
================================================
//
//  OTPFieldView.h
//  OTPFieldView
//
//  Created by Vaibhav Bhasin on 10/09/19.
//  Copyright © 2019 Vaibhav Bhasin. All rights reserved.
//

#import <UIKit/UIKit.h>

//! Project version number for OTPFieldView.
FOUNDATION_EXPORT double OTPFieldViewVersionNumber;

//! Project version string for OTPFieldView.
FOUNDATION_EXPORT const unsigned char OTPFieldViewVersionString[];

// In this header, you should import all the public headers of your framework using statements like #import <OTPFieldView/PublicHeader.h>




================================================
FILE: OTPFieldView/OTPFieldView.swift
================================================
//
//  OTPFieldView.swift
//  OTPFieldView
//
//  Created by Vaibhav Bhasin on 10/09/19.
//  Copyright © 2019 Vaibhav Bhasin. All rights reserved.
//

//    MIT License
//
//    Copyright (c) 2019 Vaibhav Bhasin
//
//    Permission is hereby granted, free of charge, to any person obtaining a copy
//    of this software and associated documentation files (the "Software"), to deal
//    in the Software without restriction, including without limitation the rights
//    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//    copies of the Software, and to permit persons to whom the Software is
//    furnished to do so, subject to the following conditions:
//
//    The above copyright notice and this permission notice shall be included in all
//    copies or substantial portions of the Software.
//
//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//    SOFTWARE.

import UIKit

@objc public protocol OTPFieldViewDelegate: class {
    
    func shouldBecomeFirstResponderForOTP(otpTextFieldIndex index: Int) -> Bool
    func enteredOTP(otp: String)
    func hasEnteredAllOTP(hasEnteredAll: Bool) -> Bool
}

@objc public enum DisplayType: Int {
    case circular
    case roundedCorner
    case square
    case diamond
    case underlinedBottom
}

/// Different input type for OTP fields.
@objc public enum KeyboardType: Int {
    case numeric
    case alphabet
    case alphaNumeric
}

@objc public class OTPFieldView: UIView {
    
    /// Different display type for text fields.
    
    
    public var displayType: DisplayType = .circular
    public var fieldsCount: Int = 4
    public var otpInputType: KeyboardType = .numeric
    public var fieldFont: UIFont = UIFont.systemFont(ofSize: 20)
    public var secureEntry: Bool = false
    public var hideEnteredText: Bool = false
    public var requireCursor: Bool = true
    public var cursorColor: UIColor = UIColor.blue
    public var fieldSize: CGFloat = 60
    public var separatorSpace: CGFloat = 16
    public var fieldBorderWidth: CGFloat = 1
    public var shouldAllowIntermediateEditing: Bool = true
    public var defaultBackgroundColor: UIColor = UIColor.clear
    public var filledBackgroundColor: UIColor = UIColor.clear
    public var defaultBorderColor: UIColor = UIColor.gray
    public var filledBorderColor: UIColor = UIColor.clear
    public var errorBorderColor: UIColor?
    
    public weak var delegate: OTPFieldViewDelegate?
    
    fileprivate var secureEntryData = [String]()
    
    override public func awakeFromNib() {
        super.awakeFromNib()
    }
    
    public func initializeUI() {
        layer.masksToBounds = true
        layoutIfNeeded()
        
        initializeOTPFields()
        
        layoutIfNeeded()
        
        // Forcefully try to make first otp field as first responder
        (viewWithTag(1) as? OTPTextField)?.becomeFirstResponder()
    }
    
    fileprivate func initializeOTPFields() {
        secureEntryData.removeAll()
        
        for index in stride(from: 0, to: fieldsCount, by: 1) {
            let oldOtpField = viewWithTag(index + 1) as? OTPTextField
            oldOtpField?.removeFromSuperview()
            
            let otpField = getOTPField(forIndex: index)
            addSubview(otpField)
            
            secureEntryData.append("")
        }
    }
    
    fileprivate func getOTPField(forIndex index: Int) -> OTPTextField {
        let hasOddNumberOfFields = (fieldsCount % 2 == 1)
        var fieldFrame = CGRect(x: 0, y: 0, width: fieldSize, height: fieldSize)
        
        if hasOddNumberOfFields {
            // Calculate from middle each fields x and y values so as to align the entire view in center
            fieldFrame.origin.x = bounds.size.width / 2 - (CGFloat(fieldsCount / 2 - index) * (fieldSize + separatorSpace) + fieldSize / 2)
        }
        else {
            // Calculate from middle each fields x and y values so as to align the entire view in center
            fieldFrame.origin.x = bounds.size.width / 2 - (CGFloat(fieldsCount / 2 - index) * fieldSize + CGFloat(fieldsCount / 2 - index - 1) * separatorSpace + separatorSpace / 2)
        }
        
        fieldFrame.origin.y = (bounds.size.height - fieldSize) / 2
        
        let otpField = OTPTextField(frame: fieldFrame)
        otpField.delegate = self
        otpField.tag = index + 1
        otpField.font = fieldFont
        
        // Set input type for OTP fields
        switch otpInputType {
        case .numeric:
            otpField.keyboardType = .numberPad
        case .alphabet:
            otpField.keyboardType = .alphabet
        case .alphaNumeric:
            otpField.keyboardType = .namePhonePad
        }
        
        // Set the border values if needed
        otpField.otpBorderColor = defaultBorderColor
        otpField.otpBorderWidth = fieldBorderWidth
        
        if requireCursor {
            otpField.tintColor = cursorColor
        }
        else {
            otpField.tintColor = UIColor.clear
        }
        
        // Set the default background color when text not set
        otpField.backgroundColor = defaultBackgroundColor
        
        // Finally create the fields
        otpField.initalizeUI(forFieldType: displayType)
        
        return otpField
    }
    
    fileprivate func isPreviousFieldsEntered(forTextField textField: UITextField) -> Bool {
        var isTextFilled = true
        var nextOTPField: UITextField?
        
        // If intermediate editing is not allowed, then check for last filled field in forward direction.
        if !shouldAllowIntermediateEditing {
            for index in stride(from: 1, to: fieldsCount + 1, by: 1) {
                let tempNextOTPField = viewWithTag(index) as? UITextField
                
                if let tempNextOTPFieldText = tempNextOTPField?.text, tempNextOTPFieldText.isEmpty {
                    nextOTPField = tempNextOTPField
                    
                    break
                }
            }
            
            if let nextOTPField = nextOTPField {
                isTextFilled = (nextOTPField == textField || (textField.tag) == (nextOTPField.tag - 1))
            }
        }
        
        return isTextFilled
    }
    
    // Helper function to get the OTP String entered
    fileprivate func calculateEnteredOTPSTring(isDeleted: Bool) {
        if isDeleted {
            _ = delegate?.hasEnteredAllOTP(hasEnteredAll: false)
            
            // Set the default enteres state for otp entry
            for index in stride(from: 0, to: fieldsCount, by: 1) {
                var otpField = viewWithTag(index + 1) as? OTPTextField
                
                if otpField == nil {
                    otpField = getOTPField(forIndex: index)
                }
                
                let fieldBackgroundColor = (otpField?.text ?? "").isEmpty ? defaultBackgroundColor : filledBackgroundColor
                let fieldBorderColor = (otpField?.text ?? "").isEmpty ? defaultBorderColor : filledBorderColor
                
                if displayType == .diamond || displayType == .underlinedBottom {
                    otpField?.shapeLayer.fillColor = fieldBackgroundColor.cgColor
                    otpField?.shapeLayer.strokeColor = fieldBorderColor.cgColor
                } else {
                    otpField?.backgroundColor = fieldBackgroundColor
                    otpField?.layer.borderColor = fieldBorderColor.cgColor
                }
            }
        }
        else {
            var enteredOTPString = ""
            
            // Check for entered OTP
            for index in stride(from: 0, to: secureEntryData.count, by: 1) {
                if !secureEntryData[index].isEmpty {
                    enteredOTPString.append(secureEntryData[index])
                }
            }
            
            if enteredOTPString.count == fieldsCount {
                delegate?.enteredOTP(otp: enteredOTPString)
                
                // Check if all OTP fields have been filled or not. Based on that call the 2 delegate methods.
                let isValid = delegate?.hasEnteredAllOTP(hasEnteredAll: (enteredOTPString.count == fieldsCount)) ?? false
                
                // Set the error state for invalid otp entry
                for index in stride(from: 0, to: fieldsCount, by: 1) {
                    var otpField = viewWithTag(index + 1) as? OTPTextField
                    
                    if otpField == nil {
                        otpField = getOTPField(forIndex: index)
                    }
                    
                    if !isValid {
                        // Set error border color if set, if not, set default border color
                        otpField?.layer.borderColor = (errorBorderColor ?? filledBorderColor).cgColor
                    }
                    else {
                        otpField?.layer.borderColor = filledBorderColor.cgColor
                    }
                }
            }
        }
    }
    
}

extension OTPFieldView: UITextFieldDelegate {
    public func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
        let shouldBeginEditing = delegate?.shouldBecomeFirstResponderForOTP(otpTextFieldIndex: (textField.tag - 1)) ?? true
        if shouldBeginEditing {
            return isPreviousFieldsEntered(forTextField: textField)
        }
        
        return shouldBeginEditing
    }
    
    public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        let replacedText = (textField.text as NSString?)?.replacingCharacters(in: range, with: string) ?? ""
        
        // Check since only alphabet keyboard is not available in iOS
        if !replacedText.isEmpty && otpInputType == .alphabet && replacedText.rangeOfCharacter(from: .letters) == nil {
            return false
        }
        
        if replacedText.count >= 1 {
            // If field has a text already, then replace the text and move to next field if present
            secureEntryData[textField.tag - 1] = string
            
            if hideEnteredText {
                textField.text = " "
            }
            else {
                if secureEntry {
                    textField.text = "•"
                }
                else {
                    textField.text = string
                }
            }
            
            if displayType == .diamond || displayType == .underlinedBottom {
                (textField as! OTPTextField).shapeLayer.fillColor = filledBackgroundColor.cgColor
                (textField as! OTPTextField).shapeLayer.strokeColor = filledBorderColor.cgColor
            }
            else {
                textField.backgroundColor = filledBackgroundColor
                textField.layer.borderColor = filledBorderColor.cgColor
            }
            
            let nextOTPField = viewWithTag(textField.tag + 1)
            
            if let nextOTPField = nextOTPField {
                nextOTPField.becomeFirstResponder()
            }
            else {
                textField.resignFirstResponder()
            }
            
            // Get the entered string
            calculateEnteredOTPSTring(isDeleted: false)
        }
        else {
            let currentText = textField.text ?? ""
            
            if textField.tag > 1 && currentText.isEmpty {
                if let prevOTPField = viewWithTag(textField.tag - 1) as? UITextField {
                    deleteText(in: prevOTPField)
                }
            } else {
                deleteText(in: textField)
                
                if textField.tag > 1 {
                    if let prevOTPField = viewWithTag(textField.tag - 1) as? UITextField {
                        prevOTPField.becomeFirstResponder()
                    }
                }
            }
        }
        
        return false
    }
    
    private func deleteText(in textField: UITextField) {
        // If deleting the text, then move to previous text field if present
        secureEntryData[textField.tag - 1] = ""
        textField.text = ""
        
        if displayType == .diamond || displayType == .underlinedBottom {
            (textField as! OTPTextField).shapeLayer.fillColor = defaultBackgroundColor.cgColor
            (textField as! OTPTextField).shapeLayer.strokeColor = defaultBorderColor.cgColor
        } else {
            textField.backgroundColor = defaultBackgroundColor
            textField.layer.borderColor = defaultBorderColor.cgColor
        }
        
        textField.becomeFirstResponder()
        
        // Get the entered string
        calculateEnteredOTPSTring(isDeleted: true)
    }
}


================================================
FILE: OTPFieldView/OTPTextField.swift
================================================
//
//  OTPTextField.swift
//  OTPFieldView
//
//  Created by Vaibhav Bhasin on 10/09/19.
//  Copyright © 2019 Vaibhav Bhasin. All rights reserved.
//

//    MIT License
//
//    Copyright (c) 2019 Vaibhav Bhasin
//
//    Permission is hereby granted, free of charge, to any person obtaining a copy
//    of this software and associated documentation files (the "Software"), to deal
//    in the Software without restriction, including without limitation the rights
//    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//    copies of the Software, and to permit persons to whom the Software is
//    furnished to do so, subject to the following conditions:
//
//    The above copyright notice and this permission notice shall be included in all
//    copies or substantial portions of the Software.
//
//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//    SOFTWARE.

import UIKit


@objc class OTPTextField: UITextField {
    /// Border color info for field
    public var otpBorderColor: UIColor = UIColor.black
    
    /// Border width info for field
    public var otpBorderWidth: CGFloat = 2
    
    public var shapeLayer: CAShapeLayer!
    
    override func awakeFromNib() {
        super.awakeFromNib()
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    public func initalizeUI(forFieldType type: DisplayType) {
        switch type {
        case .circular:
            layer.cornerRadius = bounds.size.width / 2
            break
        case .roundedCorner:
            layer.cornerRadius = 4
            break
        case .square:
            layer.cornerRadius = 0
            break
        case .diamond:
            addDiamondMask()
            break
        case .underlinedBottom:
            addBottomView()
            break
        }
        
        // Basic UI setup
        if type != .diamond && type != .underlinedBottom {
            layer.borderColor = otpBorderColor.cgColor
            layer.borderWidth = otpBorderWidth
        }
        
        autocorrectionType = .no
        textAlignment = .center
        if #available(iOS 12.0, *) {
            textContentType = .oneTimeCode
        }
    }
    
    override func deleteBackward() {
        super.deleteBackward()
        
        _ = delegate?.textField?(self, shouldChangeCharactersIn: NSMakeRange(0, 0), replacementString: "")
    }
    
    // Helper function to create diamond view
    fileprivate func addDiamondMask() {
        let path = UIBezierPath()
        path.move(to: CGPoint(x: bounds.size.width / 2.0, y: 0))
        path.addLine(to: CGPoint(x: bounds.size.width, y: bounds.size.height / 2.0))
        path.addLine(to: CGPoint(x: bounds.size.width / 2.0, y: bounds.size.height))
        path.addLine(to: CGPoint(x: 0, y: bounds.size.height / 2.0))
        path.close()
        
        let maskLayer = CAShapeLayer()
        maskLayer.path = path.cgPath
        
        layer.mask = maskLayer
        
        shapeLayer = CAShapeLayer()
        shapeLayer.path = path.cgPath
        shapeLayer.lineWidth = otpBorderWidth
        shapeLayer.fillColor = backgroundColor?.cgColor
        shapeLayer.strokeColor = otpBorderColor.cgColor
        
        layer.addSublayer(shapeLayer)
    }
    
    // Helper function to create a underlined bottom view
    fileprivate func addBottomView() {
        let path = UIBezierPath()
        path.move(to: CGPoint(x: 0, y: bounds.size.height))
        path.addLine(to: CGPoint(x: bounds.size.width, y: bounds.size.height))
        path.close()
        
        shapeLayer = CAShapeLayer()
        shapeLayer.path = path.cgPath
        shapeLayer.lineWidth = otpBorderWidth
        shapeLayer.fillColor = backgroundColor?.cgColor
        shapeLayer.strokeColor = otpBorderColor.cgColor
        
        layer.addSublayer(shapeLayer)
    }
}


================================================
FILE: OTPFieldView.podspec
================================================
Pod::Spec.new do |spec|

  spec.name         = "OTPFieldView"
  spec.version      = "1.0.1"
  spec.summary      = "A CocoaPods library for One Time Password View written in Swift"

  spec.description  = <<-DESC
  This library helps you create One-Time-Password view for iOS Applications
                   DESC

  spec.homepage     = "https://github.com/Root-vb/OTPFieldView"
  spec.license      = { :type => "MIT", :file => "LICENSE" }
  spec.author             = { "Vaibhav Bhasin" => "vaibhavbhasin15@gmail.com" }
  
  spec.ios.deployment_target = "10.3"
  spec.swift_version = "5.0"  
  
  spec.source       = { :git => "https://github.com/Root-vb/OTPFieldView.git", :tag => "#{spec.version}" }
  spec.source_files  = "OTPFieldView/**/*.{h,m,swift}"

end


================================================
FILE: OTPFieldView.xcodeproj/project.pbxproj
================================================
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================================================
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================================================
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================================================
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FILE: OTPFieldViewTests/Info.plist
================================================
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================================================
FILE: OTPFieldViewTests/OTPFieldViewTests.swift
================================================
//
//  OTPFieldViewTests.swift
//  OTPFieldViewTests
//
//  Created by Vaibhav Bhasin on 10/09/19.
//  Copyright © 2019 Vaibhav Bhasin. All rights reserved.
//

import XCTest

class OTPFieldViewTests: XCTestCase {

    override func setUp() {
        // Put setup code here. This method is called before the invocation of each test method in the class.
    }

    override func tearDown() {
        // Put teardown code here. This method is called after the invocation of each test method in the class.
    }

    func testExample() {
        // This is an example of a functional test case.
        // Use XCTAssert and related functions to verify your tests produce the correct results.
    }

    func testPerformanceExample() {
        // This is an example of a performance test case.
        self.measure {
            // Put the code you want to measure the time of here.
        }
    }

}


================================================
FILE: README.md
================================================
# OTPFieldView
One Time Password View for iOS. Built in Swift 5

<p align="left">
<a href="https://developer.apple.com/swift"><img src="https://img.shields.io/badge/Swift_5-compatible-4BC51D.svg?style=flat" alt="Swift 5 compatible" /></a>
<img src="https://img.shields.io/badge/platform-iOS-blue.svg?style=flat" alt="Platform iOS" />
<a href="https://raw.githubusercontent.com/maxsokolov/tablekit/master/LICENSE"><img src="http://img.shields.io/badge/license-MIT-blue.svg?style=flat" alt="License: MIT" /></a>
</p>

### Preview

![demo](Screenshots/IMG_0198.PNG)
![demo](Screenshots/IMG_0199.PNG)
![demo](Screenshots/IMG_0200.PNG)
![demo](Screenshots/IMG_0201.PNG)
![demo](Screenshots/IMG_0202.PNG)

## Installation

### CocoaPods

Add the following line to your Podfile:

```ruby
pod 'OTPFieldView'
```

Then run the following in the same directory as your Podfile:
```ruby
pod install
```

## Usage

### Code
```swift
@IBOutlet var otpTextFieldView: OTPFieldView!

func setupOtpView(){
        self.otpTextFieldView.fieldsCount = 5
        self.otpTextFieldView.fieldBorderWidth = 2
        self.otpTextFieldView.defaultBorderColor = UIColor.black
        self.otpTextFieldView.filledBorderColor = UIColor.green
        self.otpTextFieldView.cursorColor = UIColor.red
        self.otpTextFieldView.displayType = .underlinedBottom
        self.otpTextFieldView.fieldSize = 40
        self.otpTextFieldView.separatorSpace = 8
        self.otpTextFieldView.shouldAllowIntermediateEditing = false
        self.otpTextFieldView.delegate = self
        self.otpTextFieldView.initializeUI()
    }
```
The `becomeFirstResponderAtIndex` property sets the pinField at the specified index as the first responder.
The `isContentTypeOneTimeCode` property sets the contentType of the first pinField to `.oneTimeCode` to leverage the iOS 12 feature where the passcode is directly fetched from the messages. 

#### Styles
```swift
enum DisplayType: Int {
    case circular
    case roundedCorner
    case square
    case diamond
    case underlinedBottom
}
```

### Delegate Methods

```swift
extension OtpViewController: OTPFieldViewDelegate {
    func hasEnteredAllOTP(hasEnteredAll hasEntered: Bool) -> Bool {
        print("Has entered all OTP? \(hasEntered)")
        return false
    }
    
    func shouldBecomeFirstResponderForOTP(otpTextFieldIndex index: Int) -> Bool {
        return true
    }
    
    func enteredOTP(otp otpString: String) {
        print("OTPString: \(otpString)")
    }
}
```

- **hasEnteredAllOTP()**: Returns true when all text Fields are full.
- **shouldBecomeFirstResponderForOTP()**: Show keyboard automatically.
- **enteredOTP()**: Get entered pin.

### Properties

- **.displayType**: Display type for Text Field.
- **.fieldsCount**: Length of OTP.
- **.otpInputType**: Input type for Text Field : numeric, alphabet, alphaNumeric.

- **.fieldFont**: Font for Text Field.
- **.secureEntry**: Shows • instead of text.
- **.hideEnteredText**: Hides the text.
- **.requireCursor**: Shows/Hides cursor.
- **.cursorColor**: Color for Cursor.
- **.fieldSize**: Size of Text Field.
- **.separatorSpace**: Space between Text Fields.
- **.fieldBorderWidth**: Border width for Text Fields.
- **.shouldAllowIntermediateEditing**: Allow to edit from middle.
- **.defaultBackgroundColor**: Empty text field background color.
- **.filledBackgroundColor**: Filled text field background color.
- **.defaultBorderColor**: Empty text field border color.
- **.filledBorderColor**: Filled text field border color.
- **.errorBorderColor**: Error text field border color.
- **.delegate**: delegate.

## License

OTPFieldView is available under the MIT license. See LICENSE for details.