推送通知未在IOS8.1中交付，但在较少的时间内工作良好

Question

更新:注意我使用的是Xcode 6.01并使用此代码进行部署，但当我安装Xcode 6.1版本并部署它的works...so版本时，它可能是Xcode版本，这将帮助其他人。

我正在使用下面的代码进行推送通知，使用PARSE.com --在ios8下面的所有设备上都很好，

if (application.applicationState != UIApplicationStateBackground) {
        // Track an app open here if we launch with a push, unless
        // "content_available" was used to trigger a background push (introduced in iOS 7).
        // In that case, we skip tracking here to avoid double counting the app-open.
        BOOL preBackgroundPush = ![application respondsToSelector:@selector(backgroundRefreshStatus)];
        BOOL oldPushHandlerOnly = ![self respondsToSelector:@selector(application:didReceiveRemoteNotification:fetchCompletionHandler:)];
        BOOL noPushPayload = ![launchOptions objectForKey:UIApplicationLaunchOptionsRemoteNotificationKey];
        if (preBackgroundPush || oldPushHandlerOnly || noPushPayload) {
            [PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];
        }
    }

此外，我还使用这些条件进行测试(小于ios 8的工作效率很好)。

如果__IPHONE_OS_VERSION_MAX_ALLOWED >= 80000

if ([application respondsToSelector:@selector(registerUserNotificationSettings:)]) {
    UIUserNotificationType userNotificationTypes = (UIUserNotificationTypeAlert |
                                                    UIUserNotificationTypeBadge |
                                                    UIUserNotificationTypeSound);
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNotificationTypes
                                                                             categories:nil];
    [application registerUserNotificationSettings:settings];
    [application registerForRemoteNotifications];
} else

endif

{
    [application registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |
                                                     UIRemoteNotificationTypeAlert |
                                                     UIRemoteNotificationTypeSound)];
}

即使是iOS 8 enabled device not receiving PUSH notifications after code update也不适合我，我正确地设置了通知，我的包标识符集也是正确的。

Answer 1

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}