Update Alert.swift

Author: Anton Poltoratskyi

NativeUI/Sources/Alert/Alert.swift

@@ -28,27 +28,57 @@ public struct Alert {
         }
     }
 
-    public let title: String?
-    public let titleFont: UIFont
-    public let message: String?
-    public let messageFont: UIFont
+    public enum Text {
+        case string(String, UIFont)
+        case attributedString(NSAttributedString)
+    }
+    
+    /// default font: `UIFont.systemFont(ofSize: 17, weight: .semibold)`
+    public let title: Text?
+    /// default font: `UIFont.systemFont(ofSize: 13, weight: .regular)`
+    public let message: Text?
+    /// Custom view to use instead of message or in addition to message.
     public let contentView: UIView?
+    
     public let tintColor: UIColor?
+    
     public let actions: [Action]
 
-    public init(title: String?,
-                titleFont: UIFont = UIFont.systemFont(ofSize: 17, weight: .semibold),
-                message: String?,
-                messageFont: UIFont = UIFont.systemFont(ofSize: 13, weight: .regular),
+    public init(title: Text?,
+                message: Text?,
                 contentView: UIView? = nil,
                 tintColor: UIColor? = nil,
                 actions: [Action]) {
         self.title = title
-        self.titleFont = titleFont
         self.message = message
-        self.messageFont = messageFont
         self.contentView = contentView
         self.tintColor = tintColor
         self.actions = actions
     }
+    
+    public init(title: String?,
+                titleFont: UIFont = UIFont.systemFont(ofSize: 17, weight: .semibold),
+                message: String?,
+                messageFont: UIFont = UIFont.systemFont(ofSize: 13, weight: .regular),
+                contentView: UIView? = nil,
+                tintColor: UIColor? = nil,
+                actions: [Action]) {
+        self.init(title: title.map { .string($0, titleFont) },
+                  message: message.map { .string($0, messageFont) },
+                  contentView: contentView,
+                  tintColor: tintColor,
+                  actions: actions)
+    }
+    
+    public init(title: NSAttributedString?,
+                message: NSAttributedString?,
+                contentView: UIView? = nil,
+                tintColor: UIColor? = nil,
+                actions: [Action]) {
+        self.init(title: title.map { .attributedString($0) },
+                  message: message.map { .attributedString($0) },
+                  contentView: contentView,
+                  tintColor: tintColor,
+                  actions: actions)
+    }
 }

NativeUI/Sources/Alert/AlertView.swift

@@ -156,12 +156,26 @@ final class AlertView: UIView {
     func setup(viewModel: Alert) {
         self.viewModel = viewModel
 
-        titleLabel.text = viewModel.title
-        titleLabel.font = viewModel.titleFont
+        switch viewModel.title {
+        case let .string(text, font):
+            titleLabel.text = text
+            titleLabel.font = font
+        case let .attributedString(attributedText):
+            titleLabel.attributedText = attributedText
+        case nil:
+            titleLabel.text = nil
+        }
         titleLabel.isHidden = viewModel.title == nil
 
-        messageLabel.text = viewModel.message
-        messageLabel.font = viewModel.messageFont
+        switch viewModel.message {
+        case let .string(text, font):
+            messageLabel.text = text
+            messageLabel.font = font
+        case let .attributedString(attributedText):
+            messageLabel.attributedText = attributedText
+        case nil:
+            messageLabel.text = nil
+        }
         messageLabel.isHidden = viewModel.message == nil
 
         if let contentView = viewModel.contentView {