在iPhone(也是Android)和服务器之间同步联系人 [英] sync Contacts between iPhone(also Android) and server

问题描述

我遇到了麻烦，需要您的帮助.

I am in trouble and Need your help.

第一个问题:

我的IOS应用程序必须向Web服务器发送数据或从Web服务器接收数据. 使用TCP定义的服务器，数据格式为TLV；我以前从未使用过TLV，也不知道如何解决此问题.

My IOS app has to send/receive datas to/from a Web Server. The server defined using the TCP and the data format is TLV; I have never used TLV before, and have no idea how to solve this problem.

对于TCP，我决定使用cocoaAsyncSocket，它很容易处理TCP传输. 但是我以(NSData *)格式发送/接收所有数据，我不知道服务器是否可以解码 它正确.

As for TCP, I decide to use cocoaAsyncSocket, it's simple to deal with TCP transports; But I send/receive datas all in the (NSData*) format, I don't know if the server can decode it correctly.

第二个问题:

我还试图在本地客户端和服务器之间同步联系人；本地客户端将是IOS应用程序和Android应用程序.通过我决定使用vCard作为联系人的数据格式，但是iPhone的vCard包含Android中不包含的某些项(例如RelatedName)；当我使用vCard时，会有一些数据丢失，我无法解决此问题.有什么好的建议吗?

I am also trying to sync Contacts between local client and the server; the local client will be IOS app and Android app. Through I decide using vCard as the contacts' data format, but the vCard from iPhone contains some items(such as RelatedName) that not contained in Android; When I using vCard, there are some data lose, I can't solve this problem. Is there any good suggestion?

有人帮助我.最好的问候.

Somebody help me. Best regards.

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最后，我决定使用cocoaAsyncScoket来传输数据，并使用SQLite来存储联系人的所有数据.看来避免数据丢失是不可能的.

Finally, I decided to use cocoaAsyncScoket for transporting data and use SQLite for storing contacts's all data; And it seems avoiding data lose is not possible.

推荐答案

我完成了它.

我使用GCDAsyncSocket库发送&接收数据； 对于TLV，只需按照自定义定义的规则按顺序发送原始字节即可.

I used the GCDAsyncSocket lib to send & receive datas; As for TLV, just send the raw bytes in order under the custom defined rules will be fine.

github中的lib

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