feat: 서로 다른 모서리에 각기 다른 CornerRadius 값을 줄 수 있도록 코드 구현

Author: rlarjsdn3

Example/Pods/Pods.xcodeproj/project.pbxproj

@@ -78,7 +78,7 @@ public extension TSAlertController {
         public var shadow: Shadow?
 
         /// The corner radius of the alert view.
-        public var cornerRadius: CGFloat
+        public var cornerRadius: CornerRadius
 
         /// The background color of the dimmed overlay behind the alert.
         public var dimmedBackgroundViewColor: Background?
@@ -95,6 +95,46 @@ public extension TSAlertController {
         /// The axis layout of the button group (horizontal or vertical).
         public var buttonGroupAxis: ButtonGroupAxis
 
+        ///
+        public struct CornerRadius: ExpressibleByFloatLiteral {
+            
+            ///
+            public var topLeft: CGFloat
+            
+            ///
+            public var topRight: CGFloat
+            
+            ///
+            public var bottomLeft: CGFloat
+            
+            ///
+            public var bottomRight: CGFloat
+            
+            ///
+            public init(allCorners: CGFloat = 20) {
+                self.init(topLeft: allCorners,
+                          topRight: allCorners,
+                          bottomLeft: allCorners,
+                          bottomRight: allCorners)
+            }
+            
+            ///
+            public init(topLeft: CGFloat = 20,
+                        topRight: CGFloat = 20,
+                        bottomLeft: CGFloat = 20,
+                        bottomRight: CGFloat = 20) {
+                self.topLeft = topLeft
+                self.topRight = topRight
+                self.bottomLeft = bottomLeft
+                self.bottomRight = bottomRight
+            }
+        
+            ///
+            public init(floatLiteral value: FloatLiteralType) {
+                self.init(allCorners: value)
+            }
+        }
+        
         /// Defines the shadow properties of the alert.
         public struct Shadow {
 
@@ -172,7 +212,7 @@ public extension TSAlertController {
                     backgroundBorderColor: CGColor? = nil,
                     backgroundBorderWidth: CGFloat = 0,
                     shadow: Shadow? = nil,
-                    cornerRadius: CGFloat = 20,
+                    cornerRadius: CornerRadius = .init(allCorners: 20),
                     dimmedBackgroundViewColor: Background? = .color(.black.withAlphaComponent(0.75)),
                     margin: LayoutMargin = .init(),
                     spacing: LayoutSpacing = .init(),

Sources/TSAlert/TSAlertController+ViewConfiguration.swift

@@ -233,6 +233,12 @@ public final class TSAlertController: UIViewController {
         activateFirstResponderIfNeeded()
     }
 
+    public override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        
+        view.applyRoundCorners(viewConfiguration.cornerRadius)
+    }
+    
     public override func viewDidDisappear(_ animated: Bool) {
         super.viewDidDisappear(animated)
 
@@ -303,6 +309,7 @@ public final class TSAlertController: UIViewController {
     /// based on `TSAlertController.Style`.
     /// This ensures that the alert is presented correctly and prevents unintended behavior.
     private func adjustViewConfigurationForcibly() {
+        adjustCornerRadiusForcibly()
         adjustButtonGroupAxisForcibly()
         adjustActionOrderForcibly()
     }
@@ -333,6 +340,17 @@ public final class TSAlertController: UIViewController {
         }
     }
 
+    ///
+    private func adjustCornerRadiusForcibly() {
+        switch preferredStyle {
+        case .actionSheet:
+            viewConfiguration.cornerRadius.bottomLeft = 0
+            viewConfiguration.cornerRadius.bottomRight = 0
+        default:
+            break
+        }
+    }
+    
     private func initializeAlertView() {
         setupAlertView()
         setupConstraints()
@@ -384,7 +402,7 @@ public final class TSAlertController: UIViewController {
 
         view.layer.borderColor = viewConfiguration.backgroundBorderColor
         view.layer.borderWidth = viewConfiguration.backgroundBorderWidth
-        view.layer.cornerRadius = viewConfiguration.cornerRadius
+        view.applyRoundCorners(viewConfiguration.cornerRadius)
 
         guard let shadow = viewConfiguration.shadow else { return }
         view.layer.shadowColor = shadow.color

Sources/TSAlert/TSAlertController.swift

@@ -87,12 +87,11 @@ class DefaultAlertView: UIView, TSAlertView {
         let actionHeight: CGFloat = viewConfiguration.buttonHeight
         let spacing: CGFloat = viewConfiguration.spacing.buttonSpacing
 
-        let height: CGFloat = if !isEmpty {
-            isHorizontal
+        var height: CGFloat = 0
+        if !isEmpty {
+            height = isHorizontal
             ? actionHeight
             : (actionHeight * actionsCount) + ((actionsCount - 1) * spacing)
-        } else {
-            0
         }
         buttonGroupView.setHeight(equalTo: height)
     }

Sources/TSAlert/TSAlertView/DefaultAlertView/DefaultAlertView.swift

@@ -0,0 +1,59 @@
+//
+//  UIBezierPath+Extension.swift
+//  TSAlertController
+//
+//  Created by 김건우 on 3/21/25.
+//
+
+import UIKit
+
+extension UIBezierPath {
+    
+    convenience init(roundedRect rect: CGRect,
+                     topLeftRadius: CGFloat = .zero,
+                     topRightRadius: CGFloat = .zero,
+                     bottomLeftRadius: CGFloat = .zero,
+                     bottomRightRadius: CGFloat = .zero) {
+        self.init()
+        
+        let path = CGMutablePath()
+        
+        let topLeftPoint = CGPoint(x: rect.minX, y: rect.minY)
+        let topRightPoint = CGPoint(x: rect.maxX, y: rect.minY)
+        let bottomLeftPoint = CGPoint(x: rect.minX, y: rect.maxY)
+        let bottomRightPoint = CGPoint(x: rect.maxX, y: rect.maxY)
+        
+        path.move(to: bottomLeftPoint)
+        
+        path.addArc(tangent1End: topLeftPoint,
+                    tangent2End: topRightPoint,
+                    radius: topLeftRadius)
+
+        path.addArc(tangent1End: topRightPoint,
+                    tangent2End: bottomRightPoint,
+                    radius: topRightRadius)
+        
+        path.addArc(tangent1End: bottomRightPoint,
+                    tangent2End: bottomLeftPoint,
+                    radius: bottomRightRadius)
+
+        path.addArc(tangent1End: bottomLeftPoint,
+                    tangent2End: topLeftPoint,
+                    radius: bottomLeftRadius)
+        
+        path.closeSubpath()
+        cgPath = path
+    }
+}
+
+
+extension CGMutablePath {
+    
+    func addLine(toX x: CGFloat, y: CGFloat) {
+        addLine(to: CGPoint(x: x, y: y))
+    }
+    
+    func move(toX x: CGFloat, y: CGFloat) {
+        move(to: CGPoint(x: x, y: y))
+    }
+}

Sources/Utils/Extensions/UIBezierPath+Extension.swift

@@ -219,7 +219,7 @@ extension UIView {
         if let configuration = configuration {
             blurEffectView.layer.borderColor = configuration.backgroundBorderColor
             blurEffectView.layer.borderWidth = configuration.backgroundBorderWidth
-            blurEffectView.layer.cornerRadius = configuration.cornerRadius
+//            blurEffectView.layer.cornerRadius = configuration.cornerRadius
             blurEffectView.layer.masksToBounds = true
         }
         insertSubview(blurEffectView, at: 0)
@@ -242,14 +242,14 @@ extension UIView {
                                         locations)
 
         if let viewConfiguration = viewConfiguration {
-            gradientView.gradientLayer?.cornerRadius = viewConfiguration.cornerRadius
+//            gradientView.gradientLayer?.cornerRadius = viewConfiguration.cornerRadius
             gradientView.gradientLayer?.masksToBounds = true
         }
         insertSubview(gradientView, at: 0)
         gradientView.fill(to: self)
     }
 
-    class GradientView: UIView {
+    final class GradientView: UIView {
 
         let gradientLayer: CAGradientLayer?
 
@@ -310,3 +310,45 @@ extension UIView {
         self.layer.anchorPoint = anchorPoint
     }
 }
+
+extension UIView {
+    
+    // MARK: - Apply Round Corners
+    
+    ///
+    func applyRoundCorners(_ cornerRadius: CGFloat) {
+        
+        applyRoundCorners(topLeftRadius: cornerRadius,
+                          topRightRadius: cornerRadius,
+                          bottomLeftRadius: cornerRadius,
+                          bottomRightRadius: cornerRadius)
+    }
+    
+    ///
+    func applyRoundCorners(_ cornerRadius: TSAlertController.ViewConfiguration.CornerRadius) {
+        
+        applyRoundCorners(topLeftRadius: cornerRadius.topLeft,
+                          topRightRadius: cornerRadius.topRight,
+                          bottomLeftRadius: cornerRadius.bottomLeft,
+                          bottomRightRadius: cornerRadius.bottomRight)
+    }
+    
+    ///
+    func applyRoundCorners(topLeftRadius: CGFloat,
+                           topRightRadius: CGFloat,
+                           bottomLeftRadius: CGFloat,
+                           bottomRightRadius: CGFloat) {
+          
+        let roundedRect = self.bounds
+        
+        let path = UIBezierPath(roundedRect: roundedRect,
+                                topLeftRadius: topLeftRadius,
+                                topRightRadius: topRightRadius,
+                                bottomLeftRadius: bottomLeftRadius,
+                                bottomRightRadius: bottomRightRadius)
+        
+        let shapeLayer = CAShapeLayer()
+        shapeLayer.path = path.cgPath
+        layer.mask = shapeLayer
+    }
+}