[3주차] 기본과제 구현

SOPTving/SOPTving/Presentation/MainScene/VC/MainVC.swift

@@ -14,18 +14,25 @@ final class MainVC: UIViewController {
 
     //MARK: - Properties
 
-    private var name: String? {
+    var mainTitle: String? {
         didSet {
             updateUI()
         }
     }
 
+    private var data: [String] = ["처음", "중간", "마지막"]
+
+    private var currentNode : Node<String>? {
+        didSet{ mainTitle = currentNode?.data }
+    }
+    private var dataLinkedList = LinkedList<String>()
+
     //MARK: - UI Components
 
     private let profileLabel: UILabel = {
         let label = UILabel()
         label.font = .tvingSemiBold(ofSize: 20)
-        label.text = "gd"
+        label.text = "asdf"
         label.textColor = .white
         return label
     }()
@@ -34,7 +41,7 @@ final class MainVC: UIViewController {
                                     .setTitle("다음으로",
                                              color: .white,
                                              font: .tvingSemiBold(ofSize: 16))
-                                    .setBackGroundColor(.systemBlue)
+                                    .setBackgroundColor(.systemBlue)
                                     .setCornerRadius(12)
                                     .setAction { [weak self] _ in
                                         self?.nextButtonDidTap()
@@ -49,6 +56,17 @@ final class MainVC: UIViewController {
         style()
         hierarchy()
         layout()
+
+    }
+
+    override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+
+    }
+
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        setData()
     }
 
 }
@@ -58,13 +76,15 @@ final class MainVC: UIViewController {
 extension MainVC {
 
     private func updateUI() {
-        profileLabel.text = name
+        profileLabel.text = mainTitle
     }
+
 
     //MARK: Public
 
-    public func dataBind(_ text: String) {
-        self.name = text
+    private func setData() {
+        dataLinkedList.append(data: data)
+        currentNode = dataLinkedList.getFirstNode()
     }
 
 }
@@ -73,7 +93,7 @@ extension MainVC {
 
 extension MainVC {
     func nextButtonDidTap() {
-
+        currentNode = currentNode?.next
     }
 }
 

SOPTving/SOPTving/Utility/DataStructure/LinkedList.swift

@@ -6,3 +6,41 @@
 //
 
 import Foundation
+
+final class LinkedList<T> {
+    private var head: Node<T>?
+    private var tail: Node<T>?
+
+    var isEmpty: Bool {
+           return head == nil
+       }
+
+    func append(data: T?) {
+        let newNode = Node(data)
+
+        if isEmpty {
+            head = newNode
+            tail = newNode
+            tail?.next = head
+        } else {
+            tail?.next = newNode
+            tail = newNode
+            tail?.next = head
+        }
+    }
+
+    // append 인자에 배열을 넣었을 경우, append(T)를 반복한다.
+    func append(data: [T]?) {
+        guard let data else { return }
+        for t in data {
+            append(data: t)
+        }
+    }
+
+    func getFirstNode() -> Node<T>? {
+        return head
+    }
+
+
+
+}

SOPTving/SOPTving/Utility/DataStructure/Node.swift

@@ -6,3 +6,13 @@
 //
 
 import Foundation
+
+final class Node<T> {
+    var data: T?
+    var next: Node?
+
+    init(_ data: T?, next: Node? = nil) {
+        self.data = data
+        self.next = next
+    }
+}