详解iOS集成融云SDK即时通讯整理

最近很少写一下项目总结了，最近项目虽然做了很多，但是都是一些外包项目，做下来也没有什么值得总结的。最近一个项目用到了融云即时通讯，以前基本都是用环信，所以还遇到了一些问题，在此总结一下记录一下。

1 头像、昵称等用户信息(融云对这个问题有两种处理方式)

1.用户信息提供者

实现步骤(以下代码放在单例中，可以是appdelegate，最好单独写一个单例)

首先遵守rcimuserinfodatasource这个协议

然后是要设置代理

[[rcim sharedrcim] setuserinfodatasource:self]; 

最后实现代理方法：

- (void)getuserinfowithuserid:(nsstring *)userid completion:(void (^)(rcuserinfo *))completion {
nslog(@"getuserinfowithuserid ----- %@", userid);
rcuserinfo *user = [rcuserinfo new];
if (userid == nil || [userid length] == 0) {
  user.userid = userid;
  user.portraituri = @"";
  user.name = @"";
  completion(user);
  return;
}
if ([userid isequaltostring:[userinfo shareinstance].uid]) {
  nsstring *urlself = [basic_url_image stringbyappendingstring:[userinfo shareinstance].photo];
  return completion([[rcuserinfo alloc] initwithuserid:userid name:[userinfo shareinstance].nickname portrait:urlself]);
}else {
  //根据存储联系人信息的模型，通过 userid 来取得对应的name和头像url，进行以下设置
  [wtbasehttprequst postrequstwithurl:getuserhttp params:@{@"uid":[userinfo shareinstance].uid, @"api_token":[userinfo shareinstance].api_token, @"k_uid":userid} successblock:^(nsdictionary *returndata) {
    if ([returndata[@"status"] integervalue] == 1) {
      nsstring *urlstr = [basic_url_image stringbyappendingstring:returndata[@"data"][@"user"][@"photo"]];
      return completion([[rcuserinfo alloc] initwithuserid:userid name:returndata[@"data"][@"user"][@"nickname"] portrait:urlstr]);
    }else {
      completion(user);
    }
  } failureblock:^(nsstring *error) {
    completion(user);
  } showhud:no];
}
}

这个方法不需要你自己手动调用，只是当你在修改用户信息时调用

[[rcim sharedrcim] refreshuserinfocache:user withuserid:[userinfo shareinstance].uid]

方法即可

ws(weakself);
// 修改用户信息调用
[wtbasehttprequst postrequstwithurl:modifyinfohttp params:dict successblock:^(nsdictionary *returndata) {
  [weakself mbprogresshudshowwithtextonlywithtext:returndata[@"msg"]];
  if ([returndata[@"status"] integervalue] == 1) {
    rcuserinfo *user = [rcuserinfo new];
    user.userid = [userinfo shareinstance].uid;
    user.portraituri = [basic_url_image stringbyappendingstring:[userinfo shareinstance].photo];
    user.name = weakself.nicknametextfield.text;
    [[rcim sharedrcim] refreshuserinfocache:user withuserid:[userinfo shareinstance].uid];
    dispatch_after(dispatch_time(dispatch_time_now, (int64_t)(1.5 * nsec_per_sec)), dispatch_get_main_queue(), ^{
      [self.navigationcontroller popviewcontrolleranimated:yes];
    });
  }
} failureblock:^(nsstring *error) {
  [weakself mbprogresshudshowwithtextonlywithtext:error];
} showhud:yes];

2.在扩展消息中携带用户信息

设置发送消息时在消息体中携带用户信息(从2.4.1 之后附加用户信息之后cell默认会显示附加的用户信息的头像，即用户信息不会取用户信息提供者里提供的用户信息)

[rcim sharedrcim].enablemessageattachuserinfo = yes; 

你设置了enablemessageattachuserinfo之后，可以取到

/** 
* 发送者信息
* **/ 
@property(nonatomic, strong) rcuserinfo *senderuserinfo; 

当然我觉得还可以从后台获取好友关系后，我们在每次登陆后，开一个线程把好友关系请求下来存起来然后根据环信id查找好友的昵称和头像

2 给输入框添加提示语(这个我一直觉得环信应该给了方法修改，只是我一直没有找到这个方法，所以只有自己去写了)

1.创建提示的label

_lab = [[uilabel alloc] initwithframe:self.chatsessioninputbarcontrol.inputtextview.bounds];
_lab.text = @"请输入文字信息...";
_lab.textcolor = [uicolor colorwithhexcolor:@"dddddd"];
_lab.font = [uifont systemfontofsize:15];
_lab.center = cgpointmake(_lab.center.x + 15, _lab.center.y);

2.判定是否有草稿来显示和隐藏提示的label

[self.chatsessioninputbarcontrol.inputtextview addsubview:_lab];
if (self.chatsessioninputbarcontrol.draft == nil || self.chatsessioninputbarcontrol.draft.length == 0) {
  _lab.hidden = no;
}else {
  _lab.hidden = yes;
}

3.根据输入数据来判定显示隐藏提示label

- (void)inputtextview:(uitextview *)inputtextview shouldchangetextinrange:(nsrange)range replacementtext:(nsstring *)text {
if (((inputtextview.text.length == 1 && [text isequaltostring:@""]) || (inputtextview.text.length == 0 && text.length > 0)) && range.length == 1 && range.location == 0) {
  _lab.hidden = no;
}else {
  _lab.hidden = yes;
}
}

3 取消输入@弹出好友列表界面，保留长按头像@方法

1.首先在appdelegate中开启消息@功能（只支持群聊和讨论组, app需要实现群成员数据源groupmemberdatasource）

[rcim sharedrcim].enablemessagementioned = yes;

然后在继承rcconversationviewcontroller的控制器中调用

-(void)showchooseuserviewcontroller:(void (^)(rcuserinfo *selecteduserinfo))selectedblock
             cancel:(void (^)())cancelblock {
}

4 在会话列表中添加一些固定的cell(继承rcconversationlistviewcontroller)

// 对自定义cell赋值
- (rcconversationbasecell *)rcconversationlisttableview:(uitableview *)tableview
               cellforrowatindexpath:(nsindexpath *)indexpath {
rccustomcell *cell = (rccustomcell *)[[rccustomcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:@"rccustomcell"];
rcconversationmodel *model = self.conversationlistdatasource[indexpath.row];
cell.namelabel.text = model.conversationtitle;
return cell;
}

// 添加自定义cell的数据源
- (nsmutablearray *)willreloadtabledata:(nsmutablearray *)datasource{
nsarray *arr = @[@"论坛回复和@我的", @"陌生人私信", @"幸存者部落@我的", @"问卷调查"];
for (int i = 0; i<arr.count; i++) {
  rcconversationmodel *model = [[rcconversationmodel alloc]init];
  model.conversationmodeltype = rc_conversation_model_type_customization;
  model.conversationtitle = arr[i];
  model.istop = yes;
  [datasource insertobject:model atindex:i];
}
return datasource;
}

// 点击cell跳转
- (void)onselectedtablerow:(rcconversationmodeltype)conversationmodeltype
   conversationmodel:(rcconversationmodel *)model
      atindexpath:(nsindexpath *)indexpath{
if (indexpath.row == 0) {
  wtforumandconnectlistviewcontroller *chatlist = (wtforumandconnectlistviewcontroller *)[wtstoryboardsegment instantiateviewcontrollerwithstoryboardname:@"main" identifier:@"wtforumandconnectlistviewcontroller"];
  chatlist.title = @"回复和@我的";
  [self.navigationcontroller pushviewcontroller:chatlist animated:yes];
}else if (indexpath.row == 1) {
  wtchatlistviewcontroller *chatlist = [[wtchatlistviewcontroller alloc] init];
  chatlist.title = @"陌生人私信";
  chatlist.isenteredtocollectionviewcontroller = yes;
  chatlist.type = 1;
  chatlist.friendarray = self.friendarray;
  [self.navigationcontroller pushviewcontroller:chatlist animated:yes];
}else if (indexpath.row == 2) {
  wtchatlistviewcontroller *chatlist = [[wtchatlistviewcontroller alloc] init];
  chatlist.title = @"幸存者部落@我的";
  chatlist.isenteredtocollectionviewcontroller = yes;
  chatlist.type = 2;
  [self.navigationcontroller pushviewcontroller:chatlist animated:yes];
}else if (indexpath.row == 3) {
  wtquestionnaireviewcontroller *questionnaire = (wtquestionnaireviewcontroller *)[wtstoryboardsegment instantiateviewcontrollerwithstoryboardname:@"main" identifier:@"wtquestionnaireviewcontroller"];
  [self.navigationcontroller pushviewcontroller:questionnaire animated:yes];
}else {
  //点击cell，拿到cell对应的model，然后从model中拿到对应的rcuserinfo，然后赋值会话属性，进入会话
  if (model.conversationtype == conversationtype_private) {//单聊
    wtmyconversationlisviewcontroller *_conversationvc = [[wtmyconversationlisviewcontroller alloc]init];
    _conversationvc.conversationtype = model.conversationtype;
    _conversationvc.targetid = model.targetid;
    _conversationvc.title = model.conversationtitle;
    [self.navigationcontroller pushviewcontroller:_conversationvc animated:yes];
  }else if (model.conversationtype == conversationtype_group){//群聊
    wtmyconversationlisviewcontroller *_conversationvc = [[wtmyconversationlisviewcontroller alloc]init];
    _conversationvc.conversationtype = model.conversationtype;
    _conversationvc.title = model.conversationtitle;
    _conversationvc.targetid = model.targetid;
    [self.navigationcontroller pushviewcontroller:_conversationvc animated:yes];
  }
}
}

5 在任意地方获取聊天列表数量及删除列表

获取聊天列表

nsarray *privatearr = [[rcimclient sharedrcimclient] getconversationlist:@[@(conversationtype_private)]];

在conversationlist添加对应类型的聊天就可以获取对应类型的聊天列表删除方法类似

[[rcimclient sharedrcimclient] clearconversations:@[@(conversationtype_private)]];

6 背景图

融云聊天列表没有数据的默认图片下面有点击右上角加入聊天，可是不是所有的聊天都有这个功能(我的就没有)如何没有就可以在资源文件中找到 no_message_img 这张图片用ps去掉下面的那一行字????

7 其它

以上就是我在使用融云过程中遇到的一些问题及解决方法，如果有错误或者不足之处还望指正，谢谢！也希望大家多多支持。