如何在每天上午7点显示本地通知

import UserNotifications

// 在应用程序启动时调用此方法，设置定时器
func setupNotificationTimer() {
    let calendar = Calendar.current
    let now = Date()
    let tomorrowMorning = calendar.date(bySettingHour: 7, minute: 0, second: 0, of: calendar.date(byAdding: .day, value: 1, to: now)!)!
    let timeInterval = tomorrowMorning.timeIntervalSince(now)
    
    // 创建定时器，在指定时间间隔后触发通知
    let timer = Timer(fireAt: Date(timeIntervalSinceNow: timeInterval), interval: 0, target: self, selector: #selector(scheduleLocalNotification), userInfo: nil, repeats: false)
    RunLoop.main.add(timer, forMode: .common)
}

// 创建并发送本地通知
@objc func scheduleLocalNotification() {
    let content = UNMutableNotificationContent()
    content.title = "每天上午7点通知"
    content.body = "这是一个本地通知示例"
    content.sound = UNNotificationSound.default
    
    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 0, repeats: false)
    let request = UNNotificationRequest(identifier: "DailyNotification", content: content, trigger: trigger)
    
    UNUserNotificationCenter.current().add(request) { (error) in
        if let error = error {
            print("添加本地通知失败：\(error.localizedDescription)")
        }
    }
}

// 在AppDelegate中的didFinishLaunchingWithOptions方法中调用setupNotificationTimer
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound]) { (granted, error) in
        if granted {
            self.setupNotificationTimer()
        }
    }
    return true
}