A custom password textfield with options to change the masking character as well; written in Swift.

 
     //Toggle Button Font Size default is 12.0
      
      var toggleFontSize: CGFloat = 12.0   
    
     //TextField Corner Radius default is 5.0
  
      var cornerRadius: CGFloat = 5.0
    
    
     //TextField Border Width default is 1.0
  
      var borderWidth: CGFloat = 1.0
        
    
     //TextField Border Color when Textfield is in Show State
    
     var showStateBorderColor: UIColor = UIColor.darkGray

    
     //TextField Border Color when Textfield is in hide State
    
     var hideStateBorderColor: UIColor = UIColor.red
    
    
     //TextField Background Color when Textfield is in Show State
     
     var showStateBackgroundColor: UIColor = UIColor.white
        

     //TextField Background Color when Textfield is in Hide State
    
     var hideStateBackgroundColor: UIColor = UIColor.red
    
    
     //TextField Background Color Alpha when Textfield is in hide State default is 0.5
    
     var hideStateBackgroundColorAlpha: CGFloat = 0.5
    
    
     //TextField left view padding
     
     var leftPadding: CGFloat = 5.0
    
    
     //TextField right view padding
     
     var rightPadding: CGFloat = 0
    
    
     //TextField Masking Character to mask with on Hide state on default is '•'
     
     var maskingCharacter: String = ""
    
    
     //Toggle Button title on Show State
     
     var onShowToggleText: String = "SHOW"
    
    
     //Toggle Button title on Hide State
     
     var onHideToggleText: String = "HIDE"