Fixed delete backward issue for empty field

Author: varun-pm

README.md

@@ -56,6 +56,10 @@ Added support for Swift 4 and auto highlight for first field on loading the view
 
 Added support for error border color when invalid OTP is entered.
 
+### Version 1.1.3
+
+Fixed delete backward issue when field is empty.
+
 
 ## License
 MIT License

VPMOTPView/VPMOTPTextField.swift

@@ -1,7 +1,7 @@
 //
 //  VPMOTPTextField.swift
 //  VPMOTPView
-//  Version 1.1.2
+//  Version 1.1.3
 //
 //  Created by Varun P M on 14/12/16.
 //  Copyright © 2016 Varun P M. All rights reserved.
@@ -74,6 +74,12 @@ class VPMOTPTextField: UITextField {
         textAlignment = .center
     }
 
+    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()

VPMOTPView/VPMOTPView.swift

@@ -1,7 +1,7 @@
 //
 //  VPMOTPView.swift
 //  VPMOTPView
-//  Version 1.1.2
+//  Version 1.1.3
 //
 //  Created by Varun P M on 14/12/16.
 //  Copyright © 2016 Varun P M. All rights reserved.