feat: 리프래시 기능 구현

boostcampwm2023 · Jan 3, 2024 · 25226d1 · 25226d1
1 parent af484bd
commit 25226d1
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Showing 3 changed files with 47 additions and 6 deletions.
diff --git a/...e/Sources/Presntaion/HomeScene/ViewController/HomeViewController+CompositionlLayout.swift b/...e/Sources/Presntaion/HomeScene/ViewController/HomeViewController+CompositionlLayout.swift
@@ -1,5 +1,5 @@
 //
-//  HomeViewController+CompositionalLayout.swift
+//  HomeViewController+CompositionlLayout.swift
 //  HomeFeature
 //
 //  Created by MaraMincho on 1/3/24.
@@ -8,7 +8,7 @@
 
 import UIKit
 
-private extension HomeViewController {
+extension HomeViewController {
   static func makeFeedCollectionViewLayout() -> UICollectionViewCompositionalLayout {
     let itemSize = NSCollectionLayoutSize(widthDimension: .fractionalWidth(1), heightDimension: .fractionalHeight(1))
     let item = NSCollectionLayoutItem(layoutSize: itemSize)

diff --git a/...ojects/Features/Home/Sources/Presntaion/HomeScene/ViewController/HomeViewController.swift b/...ojects/Features/Home/Sources/Presntaion/HomeScene/ViewController/HomeViewController.swift
@@ -7,6 +7,7 @@
 //
 
 import Combine
+import CombineCocoa
 import DesignSystem
 import Log
 import UIKit
@@ -24,6 +25,7 @@ final class HomeViewController: UIViewController {
 
   private let fetchFeedPublisher: PassthroughSubject<Void, Never> = .init()
   private let didDisplayFeedPublisher: PassthroughSubject<Void, Never> = .init()
+  private let refreshFeedPublisher: PassthroughSubject<Void, Never> = .init()
 
   private var feedCount: Int = 0
 
@@ -89,6 +91,7 @@ private extension HomeViewController {
     setupHierarchyAndConstraints()
     setNavigationItem()
     bind()
+    configureRefreshControl()
     fetchFeedPublisher.send()
   }
 
@@ -134,7 +137,8 @@ private extension HomeViewController {
     let output = viewModel.transform(
       input: HomeViewModelInput(
         requestFeedPublisher: fetchFeedPublisher.eraseToAnyPublisher(),
-        didDisplayFeed: didDisplayFeedPublisher.eraseToAnyPublisher()
+        didDisplayFeed: didDisplayFeedPublisher.eraseToAnyPublisher(),
+        refreshFeedPublisher: refreshFeedPublisher.eraseToAnyPublisher()
       )
     )
 
@@ -144,6 +148,8 @@ private extension HomeViewController {
         break
       case let .fetched(feed):
         self?.updateFeed(feed)
+      case let .refresh(feed):
+        self?.refreshFeed(feed)
       }
     }
     .store(in: &subscriptions)
@@ -154,6 +160,20 @@ private extension HomeViewController {
     navigationItem.leftBarButtonItem = titleBarButtonItem
   }
 
+  func refreshFeed(_ item: [FeedElement]) {
+    guard let dataSource else {
+      return
+    }
+    var snapshot = dataSource.snapshot()
+    snapshot.deleteAllItems()
+    snapshot.appendSections([0])
+    snapshot.appendItems(item)
+    DispatchQueue.main.async { [weak self] in
+      dataSource.apply(snapshot)
+      self?.feedListCollectionView.refreshControl?.endRefreshing()
+    }
+  }
+
   func updateFeed(_ item: [FeedElement]) {
     guard let dataSource else {
       return
@@ -168,14 +188,24 @@ private extension HomeViewController {
     feedCount = snapshot.numberOfItems
   }
 
+  func configureRefreshControl() {
+    // Add the refresh control to your UIScrollView object.
+    feedListCollectionView.refreshControl = UIRefreshControl()
+    feedListCollectionView.refreshControl?
+      .publisher(.valueChanged)
+      .sink { [weak self] _ in
+        self?.refreshFeedPublisher.send()
+      }
+      .store(in: &subscriptions)
+  }
+
   enum Constants {
     static let navigationTitleText = "홈"
   }
 
   enum Metrics {}
 }
 
-
 // MARK: UICollectionViewDelegate
 
 extension HomeViewController: UICollectionViewDelegate {

diff --git a/iOS/Projects/Features/Home/Sources/Presntaion/HomeScene/ViewModel/HomeViewModel.swift b/iOS/Projects/Features/Home/Sources/Presntaion/HomeScene/ViewModel/HomeViewModel.swift
@@ -14,6 +14,7 @@ import Foundation
 public struct HomeViewModelInput {
   let requestFeedPublisher: AnyPublisher<Void, Never>
   let didDisplayFeed: AnyPublisher<Void, Never>
+  let refreshFeedPublisher: AnyPublisher<Void, Never>
 }
 
 public typealias HomeViewModelOutput = AnyPublisher<HomeState, Never>
@@ -23,6 +24,7 @@ public typealias HomeViewModelOutput = AnyPublisher<HomeState, Never>
 public enum HomeState {
   case idle
   case fetched(feed: [FeedElement])
+  case refresh(feed: [FeedElement])
 }
 
 // MARK: - HomeViewModelRepresentable
@@ -52,7 +54,7 @@ extension HomeViewModel: HomeViewModelRepresentable {
 
     let fetched: HomeViewModelOutput = input.requestFeedPublisher
       .flatMap { [useCase] _ in
-        useCase.fetchFeed()
+        return useCase.fetchFeed()
       }
       .map { feed in
         return HomeState.fetched(feed: feed)
@@ -65,9 +67,18 @@ extension HomeViewModel: HomeViewModelRepresentable {
       }
       .store(in: &subscriptions)
 
+    let refreshed: HomeViewModelOutput = input.refreshFeedPublisher
+      .flatMap { [useCase] _ in
+        return useCase.refreshFeed()
+      }
+      .map { feed in
+        return HomeState.refresh(feed: feed)
+      }
+      .eraseToAnyPublisher()
+
     let initialState: HomeViewModelOutput = Just(.idle).eraseToAnyPublisher()
 
-    return initialState.merge(with: fetched)
+    return initialState.merge(with: fetched, refreshed)
       .eraseToAnyPublisher()
   }
 }