我需要一些帮助。
我完全不知道为什么我的通知不起作用。
我的 AppDelegate 看起来像这样：
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
print("token: \(token)")
}
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
print("failed to register for remote notifications with with error: \(error)")
}
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
UNUserNotificationCenter.current().delegate = self
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
print("granted: (\(granted)")
}
UIApplication.shared.registerForRemoteNotifications()
return true
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
}
问题是，函数“didRegisterForRemoteNotificationsWithDeviceToken”永远不会被调用。我还在我的开发者帐户中创建了“Apple 推送通知服务 SSL 证书”，将“推送通知”添加到我在 Xcode 中的功能中，但它仍然无法正常工作。每次我点击“允许”以允许通知时，它都会显示“访问权限”，但它不会打印出任何设备令牌。“isRegisterForRemoteNotifications”也返回 true。
我也在互联网上搜索了大约 2-3 个小时，但我还没有找到任何解决方案。
我正在使用 Xcode 12 Beta 2 和 iOS 14 Dev Beta 2。
谢谢你。