最近我们要做一个项目，通过自定义，消息来处理，订单，自定义消息和通知其实有这本质的 区别，自定义消息，应用必须是运行前台，我们可以通过注册通知来来监听自定义的消息

极光推送，实现点对点的推送，必须要注册拿到regitsteID,通过拿到regitstID,发送给应用服务器，之后我们就可以实现点对点的推送了，如何拿到registerID，代码中已有详细，

• (BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary )launchOptions {

  //极光推送；
  NSString *advertisingId = [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
  //Required
  if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
  //可以添加自定义categories
  [JPUSHService registerForRemoteNotificationTypes:(UIUserNotificationTypeBadge |
  UIUserNotificationTypeSound |
  UIUserNotificationTypeAlert)
  categories:nil];
  } else {
  //categories 必须为nil
  [JPUSHService registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |
  UIRemoteNotificationTypeSound |
  UIRemoteNotificationTypeAlert)
  categories:nil];
  }
  [JPUSHService crashLogON];

  //// 如需继续使用pushConfig.plist文件声明appKey等配置内容，请依旧使用[JPUSHService setupWithOption:launchOptions]方式初始化。
  [JPUSHService setupWithOption:launchOptions appKey:appKey
  channel:channel
  apsForProduction:isProduction
  advertisingIdentifier:advertisingId];

  NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
  //[defaultCenter addObserver:self selector:@selector(networkDidReceiveMessage:) name:kJPFNetworkDidReceiveMessageNotification object:nil];

  [defaultCenter addObserver:self selector:@selector(networkDidLogin:) name:kJPFNetworkDidLoginNotification object:nil];
  return YES;
  }
  

//获取divceToken，如果你divieceToken没有获取到只能说明的你证书的配置问题；
- (void)application:(UIApplication )application didRegisterForRemoteNotificationsWithDeviceToken:(NSData )deviceToken{
NSLog(@”My token is: %@”, deviceToken);
//记得一定要向极光服务器注册diviceToken来换取registedID
[JPUSHService registerDeviceToken:deviceToken];
}
//要获得registeID,可以在这里获取啊
- (void)networkDidLogin:(NSNotification *)notification {

NSLog(@"已登录");
if ([JPUSHService registrationID]) {

    //下面是我拿到registeID,发送给服务器的代码，可以根据你需求来处理
    NSString *registerid = [JPUSHService registrationID];

    NSLog(@"APPDelegate开始上传rgeisterID");

    RegisteDVIParam *parm = [[RegisteDVIParam alloc]init];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:registerid forKey:@"registerid"];

    if (registerid) {
        parm.plateform = @1;
        parm.registrationId =registerid ;

        [GetCourierOperation UpDateRegAndDeviceWithParm:parm success:^(NearByCourierResult *result) {


            NSLog(@"上传成功啦%@",result);
            } failure:^(NSError *error) {
            NSLog(@"上传失败");
        }];
    }

    [defaults setObject:registerid forKey:@"registerid"];

    NSLog(@"*******get RegistrationID = %@ ",[JPUSHService registrationID]);
    }

}

//下面是自定义消息，这是极光推送，特有的机制，应用只有在前台才能收到自定义消息；
- (void)viewDidLoad {
[super viewDidLoad];

//接受自定义消息;
NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];

[defaultCenter addObserver:self
                  selector:@selector(networkDidReceiveMessage:)
                      name:kJPFNetworkDidReceiveMessageNotification
                    object:nil];
[self addChildVC];
[self resetPopover];
[self setUpPublishView];

}
- (void)networkDidReceiveMessage:(NSNotification *)notification {
NSDictionary *userInfo = [notification userInfo];
NSString *title = [userInfo valueForKey:@”title”];
NSString *content = [userInfo valueForKey:@”content”];
NSDictionary *extra = [userInfo valueForKey:@”extras”];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateFormat:@"yyyy-MM-dd hh:mm:ss"];

NSString *currentContent = [NSString
                            stringWithFormat:
                            @"收到自定义消息:%@ntitle:%@ncontent:%@nextra:%@n",
                            [NSDateFormatter localizedStringFromDate:[NSDate date]
                                                           dateStyle:NSDateFormatterNoStyle
                                                           timeStyle:NSDateFormatterMediumStyle],
                            title, content, [self logDic:extra]];
NSLog(@"*********%@", currentContent);

//此处我用了一个弹出视图，来展示自定义消息，自定义消息本质来说一串json,这个可以根据需求，来设计这串json,数据的展示通过解析json来实现，
LXAlertView *alert=[[LXAlertView alloc] initWithTitle:@"你有新的消息" message:currentContent cancelBtnTitle:@"取消" otherBtnTitle:@"抢单" clickIndexBlock:^(NSInteger clickIndex) {
    NSLog(@"点击index====%ld",clickIndex);
}];
alert.animationStyle=LXASAnimationLeftShake;
[alert showLXAlertView];

//    [_messageContents insertObject:currentContent atIndex:0];
//
//    NSString *allContent = [NSString
//                            stringWithFormat:@"%@收到消息:n%@nextra:%@",
//                            [NSDateFormatter
//                             localizedStringFromDate:[NSDate date]
//                             dateStyle:NSDateFormatterNoStyle
//                             timeStyle:NSDateFormatterMediumStyle],
//                            [_messageContents componentsJoinedByString:nil],
//                            [self logDic:extra]];
//
//    _messageContentView.text = allContent;
//    _messageCount++;
//    [self reloadMessageCountLabel];

}
- (NSString )logDic:(NSDictionary )dic {
if (![dic count]) {
return nil;
}
NSString *tempStr1 =
[[dic description] stringByReplacingOccurrencesOfString:@”u”
withString:@”U”];
NSString *tempStr2 =
[tempStr1 stringByReplacingOccurrencesOfString:@””” withString:@”\”“];
NSString *tempStr3 =
[[@””” stringByAppendingString:tempStr2] stringByAppendingString:@””“];
NSData *tempData = [tempStr3 dataUsingEncoding:NSUTF8StringEncoding];
NSString *str =
[NSPropertyListSerialization propertyListFromData:tempData
mutabilityOption:NSPropertyListImmutable
format:NULL
errorDescription:NULL];
return str;
}

//自定义消息的截图；

最后要说的是，自定义消息，只能运行在前台，那么如果用户在后台怎么办，所以当服务器想用户推送自定义消息时，需要先发送一条通知，用户点击这个通知进入到前台接收自定义消息，
代码就这些，希望能解决大家的问题