ADD: Back Button Feature

Author: mercen-lee

Sources/OpenTDS/Component/Example/ExampleView.swift

@@ -5,6 +5,7 @@ struct ExampleView: View {
         TossScrollView("전체") {
             Text("AnyView")
         }
+        .showDismiss()
     }
 }
 

Sources/OpenTDS/Component/ScrollView/ScrollView+Ext.swift

@@ -0,0 +1,9 @@
+import SwiftUI
+
+extension TossScrollView {
+    public func showDismiss() -> TossScrollView {
+        TossScrollView(self.title, showsIndicators: self.showsIndicators, showsDismiss: true) {
+            self.content
+        }
+    }
+}

Sources/OpenTDS/Component/ScrollView/ScrollView.swift

@@ -10,9 +10,12 @@ import SwiftUI
 @available(macOS 11, iOS 14, *)
 public struct TossScrollView<Content: View>: View {
 
+    @Environment(\.presentationMode) var presentationMode
     @State var shrink: Bool = false
+    
     let title: String
     let showsIndicators: Bool
+    let showsDismiss: Bool
     let content: Content
 
     /**
@@ -22,19 +25,35 @@ public struct TossScrollView<Content: View>: View {
      */
     public init(_ title: String,
                 showsIndicators: Bool = true,
+                showsDismiss: Bool = false,
                 @ViewBuilder content: @escaping () -> Content) {
         self.title = title
         self.showsIndicators = showsIndicators
+        self.showsDismiss = false
         self.content = content()
     }
 
     public var body: some View {
         VStack {
-            Text(title)
-                .font(.system(size: 17, weight: .medium))
-                .opacity(shrink ? 1 : 0)
-                .padding(.vertical, 6)
-                .frame(maxWidth: .infinity)
+            ZStack {
+                HStack {
+                    Button(action: {
+                        presentationMode.wrappedValue.dismiss()
+                    }) {
+                        TossIcon.chevron
+                            .resizable()
+                            .frame(width: 10.14, height: 17.77)
+                            .foregroundColor(Color(.label))
+                    }
+                    Spacer()
+                }
+                .padding(.horizontal, 18)
+                Text(title)
+                    .font(.system(size: 17, weight: .medium))
+                    .opacity(shrink ? 1 : 0)
+                    .padding(.vertical, 6)
+            }
+            .frame(maxWidth: .infinity)
             GeometryReader { outsideProxy in
                 ScrollView(showsIndicators: showsIndicators) {
                     VStack(spacing: 36) {
@@ -46,7 +65,7 @@ public struct TossScrollView<Content: View>: View {
                                     DispatchQueue.main.async {
                                         let proxy = outsideProxy.frame(in: .global).minY - newValue
                                         withAnimation(.default) {
-                                            shrink = proxy > 33
+                                            shrink = proxy > 30
                                         }
                                     }
                                 }

Sources/OpenTDS/Foundation/Icon/TossIcon.swift

@@ -0,0 +1,6 @@
+import SwiftUI
+
+@available(macOS 11, iOS 14, *)
+public enum TossIcon {
+    public static let chevron: Image = Image("Chevron", bundle: .module)
+}

Sources/OpenTDS/Foundation/Icon/TossIcon.xcassets/Chevron.imageset/Chevron.svg

@@ -0,0 +1,24 @@
+{
+  "images" : [
+    {
+      "filename" : "Chevron.svg",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  },
+  "properties" : {
+    "template-rendering-intent" : "template"
+  }
+}

Sources/OpenTDS/Foundation/Icon/TossIcon.xcassets/Chevron.imageset/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}