Font Awesome added for TextFields

Author: Ahmet Sina Ustem

ALFormInput.podspec

@@ -25,4 +25,6 @@ Pod::Spec.new do |s|
   s.dependency 'SwiftValidatorNew', '~> 4.2.0'
   s.dependency 'ActionSheetPicker-3.0'
   s.dependency 'AlExtensions'
+  s.dependency 'FontAwesome.swift'
+
 end

ALFormInput/Classes/ALDatePicker.swift

@@ -28,11 +28,13 @@ public class ALDatePicker: ALValidatableTextField {
     public override init(rules: [Rule], config: ALTextFieldConfig) {
         super.init(rules: rules, config: config)
         delegate = self
+        setDropDownIcon()
     }
 
     public required init?(coder: NSCoder) {
         super.init(coder: coder)
         delegate = self
+        setDropDownIcon()
     }
 
     public func setupPicker(pickerMode: UIDatePickerMode? = nil,

ALFormInput/Classes/ALStringPicker.swift

@@ -28,11 +28,13 @@ public class ALObjectPicker: ALValidatableTextField {
     public override init(rules: [Rule], config: ALTextFieldConfig) {
         super.init(rules: rules, config: config)
         delegate = self
+        setDropDownIcon()
     }
 
     public required init?(coder: NSCoder) {
         super.init(coder: coder)
         delegate = self
+        setDropDownIcon()
     }
 
     public func setupPicker(objects: [ALPickable]? = nil, selectedObject: ALPickable? = nil) {

ALFormInput/Classes/ALValidatableConfig.swift

@@ -6,6 +6,7 @@
 //
 
 import UIKit
+import SkyFloatingLabelTextField
 
 public class ALTextFieldConfig {
     static let shared = ALTextFieldConfig()
@@ -57,6 +58,21 @@ public class ALTextFieldConfig {
 
     public var validateEventType: UIControl.Event = .editingDidEnd
 
+    public var iconType: IconType = .image
+    
+    public var iconColor: UIColor {
+        titleColor
+    }
+    
+    public var selectedIconColor: UIColor {
+        selectedTitleColor
+    }
+    
+    public var iconWidth: CGFloat {
+        isIconVisible ? 20 : -4
+    }
+    
+    public var isIconVisible: Bool = false
 
     public init () {}
 }

ALFormInput/Classes/ALValidatableTextField.swift

@@ -11,8 +11,9 @@ import SkyFloatingLabelTextField
 import PhoneNumberKit
 import SwiftValidatorNew
 import ActionSheetPicker_3_0
+import FontAwesome_swift
 
-public class ALValidatableTextField: SkyFloatingLabelTextField {
+public class ALValidatableTextField: SkyFloatingLabelTextFieldWithIcon {
 
     private let validator = Validator()
     private var config = ALTextFieldConfig()
@@ -21,6 +22,55 @@ public class ALValidatableTextField: SkyFloatingLabelTextField {
     private lazy var phoneNumberKit = PhoneNumberKit()
     private lazy var phoneFormatter = PartialFormatter()
 
+    /// When you search your icon on fontawesome.com click on icon that you want.
+    /// In its URL you will see its style. For example for camera icon it will be like this: ../icons/camera?style=solid
+    /// For example for camera icon it will be like this: ../icons/camera?style=solid
+    public var fontAwesomeStyle : FontAwesomeStyle = .regular {
+        didSet {
+            updateIcon()
+        }
+    }
+    
+    
+    /// Check your free FontAwesome icon in https://fontawesome.com/icons?d=gallery
+    public var fontAwesomeImage: FontAwesome? {
+        didSet {
+            guard let fontAwesomeImage = fontAwesomeImage else { return }
+            DispatchQueue.main.async {
+                self.iconImage = UIImage.fontAwesomeIcon(name: fontAwesomeImage,
+                                                         style: self.fontAwesomeStyle,
+                                                         textColor: self.errorMessage != nil ? self.errorColor : self.titleColor,
+                                                         size: CGSize(width: 40, height: 40))
+            }
+            
+        }
+    }
+    
+    
+    /// Update icon when states changed
+    private func updateIcon() {
+        let fontImage = fontAwesomeImage
+        fontAwesomeImage = fontImage
+    }
+    
+    public override var errorMessage: String? {
+        didSet {
+            updateIcon()
+        }
+    }
+    
+    public override var iconImage: UIImage?{
+        willSet {
+            DispatchQueue.main.async {
+                self.config.isIconVisible = self.iconImage != nil
+                self.iconColor = self.config.iconColor
+                self.selectedIconColor = self.config.selectedIconColor
+                self.iconWidth = self.config.iconWidth
+                self.iconType = self.config.iconType
+                self.layoutIfNeeded()
+            }
+        }
+    }
 
     // MARK: - Properties
     private var padding: UIEdgeInsets? {
@@ -58,12 +108,12 @@ public class ALValidatableTextField: SkyFloatingLabelTextField {
     }
 
 
-    public func setConfig(_ type: ALValidatableTextFieldType = .optional,
-                          _ config: ALTextFieldConfig = ALTextFieldConfig(),
-                          rules: [Rule] = [],
-                          validateWhileTyping: Bool = false
-                          ) {
+    public func setConfig(_ config: ALTextFieldConfig = ALTextFieldConfig()) {
         self.config = config
+    }
+    
+    public func setTypesAndRules(_ type: ALValidatableTextFieldType = .optional,
+                          rules: [Rule] = []) {
         self.type = type
         let tmpRules = rules.isEmpty ? type.rules : rules
         keyboardType = type.keyboardType
@@ -96,6 +146,11 @@ public class ALValidatableTextField: SkyFloatingLabelTextField {
         selectedLineColor = config.selectedLineColor
         titleColor = config.titleColor
 
+        iconColor = config.iconColor
+        selectedIconColor = config.selectedIconColor
+        iconWidth = config.iconWidth
+        iconType = config.iconType
+        
         errorColor = config.errorColor
         textErrorColor = config.textErrorColor
         lineErrorColor = config.lineErrorColor
@@ -202,6 +257,10 @@ public class ALValidatableTextField: SkyFloatingLabelTextField {
         return nil
     }
 
+    internal func setDropDownIcon() {
+        fontAwesomeImage = .angleDown
+        fontAwesomeStyle = .solid
+    }
 
     func validationSuccessful() {
         // submit the form