God says, "Offer cannon!" So with XMPP.

I. Import the XMPP framework

2. Download XMPPFramework Frame

   Github:xmppframework

4. Import a dependent framework

   • CocoaLumberjack: Log Frame

   • CocoaAsyncSocket: the underlying network framework
     Need to add CFNetwork & Security frame dependencies (XCode 6+ no import required)

   • KissXML: XML parsing framework
     Need to add libxml2.dylib frame dependencies
     You need to specify the following compilation options:
     Other Linker Flags =-LXML2
     Header Search Paths =/usr/include/libxml2

   • libidn

6. Import folders

   • Authentication
   • Categories
   • Core
   • Utilities
   • Add Dependencies:libresolv.dylib

8. Import XMPP Extension Framework

   • ExtensionsFolder
   • Import Sample_XMPPFramework.h and rename to:XMPPFramework.h
   • To add a PCH file:
     • Add New File, OtherPCH文件
     • Add #import<UIKit/UIKit.h> to PCH file
     • Set compilation options, Build Settings Precompile prefix Header SelectYes
     • Set compilation options, Build Settings Prefix Header set PCH file name:“项目名/“PCH文件名”

Second, login & logout The steps for user login are as follows:

1. 实例化XMPPStream并设置代理，同时添加代理到工作队列      2. 使用JID连接至服务器，默认端口为5222，JID字符串中需要包含服务器的域名     3. 在完成连接的代理方法中验证用户密码，连接完成后XMPPStream的isConnect属性为YES     4. 在验证代理方法中判断用户是否登录成功        5. 上线或者下线成功后，向服务器发送Presence数据，以更新用户在服务器的状态

The implementation code for each part is as follows:

• Initialize   xmppstream   and set proxy:

  -(void)   setupxmppstream{_xmppstream = [[Xmppstream alloc] init]; Set agent [_xmppstream adddelegate:self delegatequeue:dispatch_get_global_queue (dispatch_queue_priority_default, 0)];} 

• Connect to server

  -(void) connecttohost{NSLog (@ "Start connecting to Server");   if (!_xmppstream) {[Self setupxmppstream]; }//Set login user Jid//resource identity user Login client iphone android Xmppjid *myjid = [Xmppjid jidwithuser:@ "AAA" domain:@ "BOURNE-MBP   . Local "resource:@" iphone "];   _xmppstream.myjid = Myjid; Set the server domain name _xmppstream.hostname = @ "bourne-mbp.local";//not only can it be a domain name, but also IP address//Set port if the server port is 5222, you can omit _xmppstream.hostpo   RT = 5222;   Connection Nserror *err = nil; if (![   _xmppstream Connectwithtimeout:xmppstreamtimeoutnone Error:&err]) {NSLog (@ "%@", err); }} 

• Send password verification after successful connection

  -(void) sendpwdtohost{NSLog (@ "   And then send password authorization ");   Nserror *err = nil;   [_xmppstream authenticatewithpassword:@ "123456" error:&err];   if (err) {NSLog (@ "%@", err); }} 

• After authorization is successful, send a 在线 message

  #pragma mark  授权成功后，发送"在线" 消息

  -(void) sendonlinetohost{   NSLog (@ "send online message");   Xmpppresence *presence = [xmpppresence presence];   NSLog (@ "%@", presence);   [_xmppstream sendelement:presence];}

  　　

Several proxy methods that need to be implemented

#pragma mark 与主机连接成功

-(void) Xmppstreamdidconnect: (Xmppstream *) sender{    NSLog (@ "Successfully connected to host");    After the host connection succeeds, send the password to authorize    [self sendpwdtohost];}

　　

-(void) Xmppstreamdiddisconnect: (Xmppstream *) sender Witherror: (Nserror *) error{
If there is an error, the connection fails NSLog (@ "Disconnect from host%@", error);
}
#pragma Mark Authorized success
-(void) Xmppstreamdidauthenticate: (Xmppstream *) sender{


#pragma Mark's authorization failed
-(void) Xmppstream: (Xmppstream *) sender Didnotauthenticate: (ddxmlelement *) error{
NSLog (@ "Authorization failed%@", error);
}

　　

Log Off Login

• Send 离线 message
• Disconnect Connection

-(void) logout{    //1. "Send ' offline ' message"    xmpppresence *offline = [xmpppresence presencewithtype:@ "unavailable"];    [_xmppstream Sendelement:offline];    2. Disconnect from server    [_xmppstream disconnect];}

　　

Third, registration

• As with login, first send account to establish connection

• After the connection is successful, send the registered password

• After the registration is successful, the framework notifies the agent

Implement the following proxy methods

-(void) Xmppstreamdidregister: (Xmppstream *) Sender {    NSLog (@ "registered successfully");    if (_resultblock) {        _resultblock (bwxmpploginresultsuccessed);    }} -(void) Xmppstream: (Xmppstream *) sender Didnotregister: (ddxmlelement *) Error {    if (_resultblock) {        _ Resultblock (bwxmpploginresultfailure);    }}

　　

Iv. User Information

XMPP is module-oriented, and each large kinetic energy belongs to a module that is exposed in the header file (originally annotated) when it is needed.

2. Working principle:

   After the user information module is added, XMPPFramework框架 user information is automatically retrieved from the server and used CoreData in a local database, with XMPPvCardTempModule access to the data

4. XMPPFramework.hRemove the comments in front of the following header files:

   // 电子名片模块#import "XMPPvCardTempModule.h"#import "XMPPvCardCoreDataStorage.h"// 头像模块#import "XMPPvCardAvatarModule.h"

6. Initializing the module

   Add vcard Module _vcardstorage = [Xmppvcardcoredatastorage sharedinstance];_vcard = [[Xmppvcardtempmodule alloc] initwithvcardstorage:_vcardstorage];//Activate [_vcard activate:_xmppstream];//add avatar module _avatar = [[XMPPvCardAvatarModule] Alloc] Initwithvcardtempmodule:_vcard]; [_avatar Activate:_xmppstream];

   　　

8. Application

   XMPP provides a way to get personal information directly xmppvcardtemp *myvcard =[wcxmpptool sharedwcxmpptool].vcard.myvcardtemp;//Set the avatar if ( Myvcard.photo) {self.haedView.image = [UIImage ImageWithData:myVCard.photo];} Set Nickname Self.nicknameLabel.text = Myvcard.nickname;

   　　

Five, friends

Similar to the user Information module, the corresponding friend roster module can be added.

2. Header file

   // 花名册模块#import "XMPPRoster.h"#import "XMPPRosterCoreDataStorage.h"

4. Initialization

   Add roster module "get buddy list" _rosterstorage = [[Xmpprostercoredatastorage alloc] Init];_roster = [[Xmpproster alloc] Initwithrosterstorage:_rosterstorage]; [_roster Activate:_xmppstream];

   　　

5. Application

   Use CoreData to get data//1. Context "Association to Database Xmpproster.sqlite" Nsmanagedobjectcontext *context = [Wcxmpptool Sharedwcxmpptool]. rosterstorage.mainthreadmanagedobjectcontext;//2.FetchRequest "Check which table" Nsfetchrequest *request = [nsfetchrequest fetchrequestwithentityname:@ "Xmppusercoredatastorageobject"];//3. Set filter and sort//filter Friends of currently logged in user nsstring *jid = [Wcuserinfo Sharedwcuserinfo].jid; Nspredicate *pre = [Nspredicate predicatewithformat:@ "streambarejidstr =%@", jid];request.predicate = pre;// Sort Nssortdescriptor *sort = [Nssortdescriptor sortdescriptorwithkey:@ "DisplayName" ascending:yes]; Request.sortdescriptors = @[sort];//4. Execute request to get data _resultscontrl = [[Nsfetchedresultscontroller alloc] Initwithfetchrequest:request Managedobjectcontext:context Sectionnamekeypath:nil cacheName:nil];_ Resultscontrl.delegate = self; Nserror *err = nil; [_resultscontrl performfetch:&err];if (Err) {Wclog (@ "%@", err);}

   　　

   • Note: Using NSFetchedResultsController and setting up the proxy, if the contents of the database have changed, this class will automatically notify the agent, you can set the interface data, real-time update.

VI. News

2. Header file

   • Note: These header files are not in the XMPPFramework.h file and need to be added yourself

   // 消息模块#import "XMPPMessageArchiving.h"#import "XMPPMessageArchivingCoreDataStorage.h"

4. Initialization

   Add Chat module _msgstorage = [[Xmppmessagearchivingcoredatastorage alloc] init];_msgarchiving = [[Xmppmessagearchiving alloc ] Initwithmessagearchivingstorage:_msgstorage]; [_msgarchiving Activate:_xmppstream];

   　　

6. Apply

   //context nsmanagedobjectcontext *context = [Wcxmpptool sharedwcxmpptool].msgstorage.mainthreadmanagedobjectcontext;//Request Object Nsfetchrequest *request = [NSFetchRequest fetchrequestwithentityname:@ "Xmppmessagearchiving_message_coredataobject"];//filtering, sorting//1. The Jid message for the currently logged-on user//2. Friend's Jid message nspredicate *pre = [Nspredicate predicatewithformat:@ "streambarejidstr =%@ and Barejidstr =%@", [Wcuserinfo sha Redwcuserinfo].jid,self.friendjid.bare]; NSLog (@ "%@", pre), request.predicate = pre;//time ascending nssortdescriptor *timesort = [Nssortdescriptor sortdescriptorwithkey: @ "timestamp" ascending:yes];request.sortdescriptors = @[timesort];//Query _resultscontr = [[Nsfetchedresultscontroller Alloc] initwithfetchrequest:request managedobjectcontext:context sectionnamekeypath:nil CacheName:nil]; Nserror *err = nil;//Proxy _resultscontr.delegate = self; [_resultscontr performfetch:&err]; NSLog (@ "%@", _resultscontr.fetchedobjects), if (err) {Wclog (@ "%@", err);} 

Vii. File Transfer (picture, audio)

1. Principle Analysis

   • Use to base64 convert a file to a string and then XMPPFramework transfer it.
   • Upload the file to the server first, then the file URL through to the XMPPFramework friend, the friend receives and then downloads the file by itself.

1. Analysis of difficulties

   • You need to XMPPFramework add an information Type field to the ' Data body '.

   Xmppmessage *msg = [xmppmessage messagewithtype:@ "chat" To:self.friendjid];//text plain text//image picture [msg addattributewithname:@ "BodyType" stringvalue:bodytype];//set content [MSG Addbody:text]; NSLog (@ "%@", msg); [[Wcxmpptool Sharedwcxmpptool].xmppstream sendelement:msg];

   　　

   • Parsing messages based on message type

   "' OBJC

   Xmppmessagearchiving_message_coredataobject *msg = _resultscontr.fetchedobjects[indexpath.row];// Determine whether the picture or plain text nsstring *chattype = [msg.message attributestringvalueforname:@ "BodyType"];if ([Chattype isequaltostring:@ "Image"]) {    //tablet display    [Cell.imageview sd_setimagewithurl:[nsurl URLWithString:msg.body] placeholderimage:[ UIImage imagenamed:@ "Defaultprofilehead_qq"];    Cell.textLabel.text = nil;} else if ([Chattype isequaltostring:@ "text"]) {    //Display message    if ([msg.outgoing boolvalue]) {//        Cell.textLabel.text = Msg.body;    } else{//others        cell.textLabel.text = msg.body;    }    Cell.imageView.image = nil;}

   　　

```

声明:

The above content is transferred from:

http://www.jianshu.com/p/c7bbbad90639#

God says, "Offer cannon!" So with XMPP.