注:從我的CSDN博客轉入

這個需求真心把我郁悶了半天,很少見要從聊天信息的文本跳轉到原生的請求界面去

方案1:---有BUG -不建議采取此方式
1.找到EMChatTextBubbleView.m

2.此處是環信的文本點擊事件,再次獲取擴展字段,進行判斷是否匹配,匹配成功發送通知

-(void)bubbleViewPressed:(id)sender  
{  
  
    UITapGestureRecognizer *tap = (UITapGestureRecognizer *)sender;  
    CGPoint point = [tap locationInView:self];  
    CFIndex charIndex = [self characterIndexAtPoint:point];  
      
      
    [self highlightLinksWithIndex:NSNotFound];  
    
      
    NSDictionary *extTest = self.model.message.ext;  
    NSLog(@"文本消息%@",extTest);  
    NSString * extString= [NSString stringWithFormat:@"%@",[extTest objectForKey:@"type"]];  
  
    if([extString isEqualToString:@"1"])  
    {  
          
        [[NSNotificationCenter defaultCenter] postNotificationName:@"jumpUserRquestNotification"  
                                                            object:nil];  
          
    }  
    for (NSTextCheckingResult *match in _urlMatches) {  
          
        if ([match resultType] == NSTextCheckingTypeLink) {  
              
            NSRange matchRange = [match range];  
              
            if ([self isIndex:charIndex inRange:matchRange]) {  
                  
                [self routerEventWithName:kRouterEventTextURLTapEventName userInfo:@{KMESSAGEKEY:self.model, @"url":match.URL}];  
                break;  
            }  
        } else if ([match resultType] ==  NSTextCheckingTypeReplacement) {  
              
            NSRange matchRange = [match range];  
              
            if ([self isIndex:charIndex inRange:matchRange]) {  
                  
                [self routerEventWithName:kRouterEventMenuTapEventName userInfo:@{KMESSAGEKEY:self.model, @"text":match.replacementString}];  
                break;  
            }  
        }  
          
    }  
}  

3.前往ChatViewController.m ViewDidLoad里定義通知,監聽方法

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(pressbtn:) name:@"jumpUserRquestNotification" object:nil]; 

方案2:

1.消息界面箭頭所指的地方點擊跳轉

2.找到ChatViewController.m
方法定位:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{  
    if (indexPath.row < [self.dataSource count]) {  
        id obj = [self.dataSource objectAtIndex:indexPath.row];  
        if ([obj isKindOfClass:[NSString class]]) {  
            EMChatTimeCell *timeCell = (EMChatTimeCell *)[tableView dequeueReusableCellWithIdentifier:@"MessageCellTime"];  
            if (timeCell == nil) {  
                timeCell = [[EMChatTimeCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"MessageCellTime"];  
                timeCell.backgroundColor = [UIColor clearColor];  
                timeCell.selectionStyle = UITableViewCellSelectionStyleNone;  
            }  
              
            timeCell.textLabel.text = (NSString *)obj;  
            return timeCell;  
        }  
        else{  
            
              
            MessageModel *model = (MessageModel *)obj;  
            PopAccount *accuount = [PopAccountTool account];  
            NSString *cellIdentifier = [EMChatViewCell cellIdentifierForMessageModel:model];  
            EMChatViewCell *cell = (EMChatViewCell *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier]; 
//此處給cell添加點擊方法addTarget:self action:@selector(pressbtn:)  
  
            if (cell == nil) {  
                cell = [[EMChatViewCell alloc] initWithMessageModel:model reuseIdentifier:cellIdentifier addTarget:self action:@selector(pressbtn:)];  
                cell.backgroundColor = [UIColor clearColor];  
                cell.selectionStyle = UITableViewCellSelectionStyleNone;  
            }  
            if (model.isSender) {  
                 
                model.headImageURL = [NSURL URLWithString:accuount.facefile];  
  
            }else{  
                  
                model.headImageURL = [NSURL URLWithString:self.receiverHeaderUrl];  
                  
            }  
            cell.messageModel = model;  
            cell.tag = indexPath.row+1;  
              
              
            return cell;  
        }  
    }  
      
    return nil;  
}  

3.獲取環信提供的擴展字段和我方服務器發出消息的擴展字段進行匹配

-(void)pressbtn:(id)sender{  
    
   
  MessageModel *model = [self.dataSource objectAtIndex:1];  
  NSDictionary *dicExt = model.message.ext;  
  NSString *extString = [NSString stringWithFormat:@"%@",[dicExt objectForKey:@"type"]];  

  if ([extString isEqualToString:@"1"]) {  
      RceiveViewController * rect = [[RceiveViewController alloc]init];  
      UINavigationController * nav = [[UINavigationController alloc]initWithRootViewController:rect];  
        
      [self presentViewController:nav animated:YES completion:nil];  
  }