[JPUSHService findNotification:identifier];

 JPushNotificationIdentifier * identifier = [[JPushNotificationIdentifier alloc] init];
    if (@available(iOS 10.0, *)) {
        identifier.delivered = YES;
    } else {

    }
    identifier.identifiers = nil;
    identifier.findCompletionHandler = ^(NSArray *results) {
        self.customerApnsNum = results.count;
    };
    [JPUSHService findNotification:identifier];

这个方法在iOS10以下无效，我通知栏有几条推送消息，但是数组返回的为空