APNS无法获取DeviceToken

Question

我的代码。

UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        center.delegate                  = self;
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
            if (!error) {
                NSLog(@"~ios10-----");
                dispatch_async(dispatch_get_main_queue(), ^{
                    [[UIApplication sharedApplication] registerForRemoteNotifications];
                });

            }else{
                NSLog(@"~ios10---error--");
            }
        }];

iPhone 5s ios 11.4.1中的这段代码是work，调用方法。但在iPhone 6s中，iOS13.5.0无法正常工作。经过几天的谷歌搜索，in APNS connection failure 找到了一个解决方案，解决方案是在wifi设置中更改手机，使用谷歌(8.8.8.8)或Cloudflare (1.1.1.1)等替代域名。但我不能修改用户电话的DNS。

如果你有任何想法，请让我知道。谢谢

Answer 1

你可以试试这个，希望这能对你有所帮助。

if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_9_x_Max) {
          UIUserNotificationType allNotificationTypes =
          (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge);
          UIUserNotificationSettings *settings =
          [UIUserNotificationSettings settingsForTypes:allNotificationTypes categories:nil];
          [application registerUserNotificationSettings:settings];
      } else {
          // iOS 10 or later
  #if defined(__IPHONE_10_0) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
          // For iOS 10 display notification (sent via APNS)
          [UNUserNotificationCenter currentNotificationCenter].delegate = self;
          UNAuthorizationOptions authOptions =
          UNAuthorizationOptionAlert
          | UNAuthorizationOptionSound
          | UNAuthorizationOptionBadge;
          [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:authOptions completionHandler:^(BOOL granted, NSError * _Nullable error) {
          }];
  #endif
      }