增加push功能。

AIGrammar/lib/PushHandler.swift

@@ -0,0 +1,118 @@
+//
+//  PushHandler.swift
+//  AIGrammar
+//
+//  Created by oscar on 2024/8/31.
+//
+
+import UIKit
+import SwiftUI
+import UserNotifications
+
+enum PromotionDisplayType {
+    case halfScreen
+    case fullScreen
+    case urlLink(String) // URL 链接，可以传递 URL 字符串
+}
+
+class NofifyState: ObservableObject {
+    @Published var selectedTab: Int = 0
+    @Published var showPromotion: Bool = false
+    @Published var promotionMode: PromotionDisplayType = .halfScreen
+}
+
+class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate {
+    // 保存 AIGrammarApp 的实例
+    var app: AIGrammarApp?
+    
+    var window: UIWindow?
+    var rootView: ContentView?
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        
+        // 设置 UNUserNotificationCenter 的 delegate
+        UNUserNotificationCenter.current().delegate = self
+        
+        // 注册推送通知
+        registerForPushNotifications()
+        return true
+    }
+
+    func registerForPushNotifications() {
+        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
+            logger.info("Permission granted: \(granted)")
+            guard granted else { return }
+            self.getNotificationSettings()
+        }
+    }
+
+    func getNotificationSettings() {
+        UNUserNotificationCenter.current().getNotificationSettings { settings in
+            logger.info("Notification settings: \(settings)")
+            guard settings.authorizationStatus == .authorized else { return }
+            DispatchQueue.main.async {
+                UIApplication.shared.registerForRemoteNotifications()
+            }
+        }
+    }
+
+    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
+        let tokenParts = deviceToken.map { data in String(format: "%02.2hhx", data) }
+        let token = tokenParts.joined()
+        logger.info("Device Token: \(token)")
+        // 你可以在此处将 token 发送到你的服务器
+    }
+
+    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
+        logger.error("Failed to register: \(error)")
+    }
+    
+    /*
+    // 处理前台接收推送通知
+    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
+        logger.info("get push msg in willPresent")
+        globalEnvironment.pushSettings.appAtFront = true
+        //completionHandler([.sound, .banner])
+    }
+     */
+
+    // 处理用户响应推送通知
+    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
+        logger.info("get push msg in didReceive")
+        let userInfo = response.notification.request.content.userInfo
+        
+        // 解析相关的参数，保存到全局变量中。等用户唤起主界面后执行
+        globalEnvironment.pushSettings.gotoTab = extractValue(from: userInfo, key: "gotoTab", defaultValue: 0, logMessage: "gotoTab not found or invalid in userInfo")
+        globalEnvironment.pushSettings.showPage = extractValue(from: userInfo, key: "showPage", defaultValue: 0, logMessage: "showPage not found or invalid in userInfo") != 0
+        globalEnvironment.pushSettings.page = extractValue(from: userInfo, key: "page", defaultValue: "", logMessage: "page not found or invalid in userInfo")
+        globalEnvironment.pushSettings.showMode = extractValue(from: userInfo, key: "showMode", defaultValue: "", logMessage: "showMode not found or invalid in userInfo")
+        globalEnvironment.pushSettings.openURL = extractValue(from: userInfo, key: "url", defaultValue: "", logMessage: "url not found or invalid in userInfo")
+
+        // 如果推送过来的时候，已经在前台了，需要触发一下
+        if globalEnvironment.pushSettings.appAtFront {
+            DispatchQueue.main.async {
+                self.app?.handlePushNotification()
+            }
+            globalEnvironment.pushSettings.appAtFront = false
+        }
+        completionHandler()
+    }
+
+    // 解析 userInfo 的通用函数
+    func extractValue<T>(from userInfo: [AnyHashable: Any], key: String, defaultValue: T, logMessage: String) -> T {
+        if let value = userInfo[key] as? T {
+            return value
+        } else {
+            logger.info(logMessage)
+            return defaultValue
+        }
+    }
+
+}
+
+
+struct PromotionView: View {
+    var body: some View {
+        Text("This is the Promotion View")
+    }
+}