提醒用户启用ios设置中的通知

您好，在我的应用程序中，我有通知部分，用户可以使用交换机启用通知。首次启动后，当交换机上的任何用户从ios获得“不允许”或“确定”警报视图时。如果用户选择“不允许”，则交换机将关闭，用户将不会收到通知。现在，如果用户尝试打开开关，我想向用户显示一个警告，并显示文本“请启用来自设置的通知”。请任何人建议执行此操作的方法。

您可以使用方法检查权限

---

对于

UILocalNotification

权限检查，如果用户不允许，

types

参数值将为none

[[UIApplication sharedApplication] currentUserNotificationSettings]

应用程序共享应用程序]注册表通知设置：设置]

//[[UIApplicationsharedApplication]注册表项删除通知]

        if ([[UIApplication sharedApplication] respondsToSelector:@selector(currentUserNotificationSettings)]) {


            UIUserNotificationType types = [[[UIApplication sharedApplication] currentUserNotificationSettings] types];

            if (types == UIUserNotificationTypeNone) {



            [_TransparentView setBackgroundColor:[[UIColor clearColor] colorWithAlphaComponent:0.8]];


              lblDescription.text=@"Please enable notifications from settings.";
            }

        }
    }

---

试试这个代码。它将适用于iOS 8.0更高版本和更早版本

 if (([[[UIDevice currentDevice] systemVersion] compare:8.0 options:NSNumericSearch] != NSOrderedAscending)) {
    if (![[UIApplication sharedApplication] isRegisteredForRemoteNotifications])
    {
        DisplayAlert(@"Please enable Permission from Settings->App Name->Notifications->Allow Notifications");
        return;
    }
}
else{
    UIRemoteNotificationType status = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
    if (status == UIRemoteNotificationTypeNone)
    {
        DisplayAlert(@"Please enable Permission from Settings->App Name->Notifications->Allow Notifications");
        return;
    }
}

        UIUserNotificationType allNotificationTypes =
        (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge);

        UIUserNotificationSettings *settings =
        [UIUserNotificationSettings settingsForTypes:allNotificationTypes categories:nil];
        [[UIAp

        if ([[UIApplication sharedApplication] respondsToSelector:@selector(currentUserNotificationSettings)]) {


            UIUserNotificationType types = [[[UIApplication sharedApplication] currentUserNotificationSettings] types];

            if (types == UIUserNotificationTypeNone) {



            [_TransparentView setBackgroundColor:[[UIColor clearColor] colorWithAlphaComponent:0.8]];


              lblDescription.text=@"Please enable notifications from settings.";
            }

        }
    }

 if (([[[UIDevice currentDevice] systemVersion] compare:8.0 options:NSNumericSearch] != NSOrderedAscending)) {
    if (![[UIApplication sharedApplication] isRegisteredForRemoteNotifications])
    {
        DisplayAlert(@"Please enable Permission from Settings->App Name->Notifications->Allow Notifications");
        return;
    }
}
else{
    UIRemoteNotificationType status = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
    if (status == UIRemoteNotificationTypeNone)
    {
        DisplayAlert(@"Please enable Permission from Settings->App Name->Notifications->Allow Notifications");
        return;
    }
}