- (IBAction)requestPermissions:(id)sender
{
  DDLogInfo(@"Start permission requesting.");

  if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerForRemoteNotifications)]){
    [[UIApplication sharedApplication] registerForRemoteNotifications];
  } else {
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(didBecomeActive:)
                                                 name:UIApplicationDidBecomeActiveNotification
                                               object:nil];
    [[UIApplication sharedApplication]
     registerForRemoteNotificationTypes:UIRemoteNotificationTypeAlert|UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound];
  }
}

注册完成后,发布了成功活动通知,我正在检查用户做了什么：

-(void)didBecomeActive:(NSNotification *)notification
{
   if([[UIApplication sharedApplication] enabledRemoteNotificationTypes] == UIRemoteNotificationTypeNone){
// if user decline 
}
} else {
 // if user accept
}

所以我的问题是：如果用户拒绝接收推送通知并稍后决定启用它们(设置 – >通知中心 – >我的应用程序),则会出现意外：启用“警报”,“徽章”和“声音”在“设置”中,但应用程序返回UIRemoteNotificationTypeNone.

有什么想法有什么不对？

注意：我知道这些方法已被弃用,所以请不要告诉我使用registerForRemoteNotifications：和UIUserNotificationSettings,它已经完成了.