写这篇文章前赞一下环信的效率!在环信imgeek社区反馈图片转发问题,立马就收到环信SDK负责人回复,截至文章发表,图片转发的问题已经完全修复。


以下为反馈全文:

最近接手了一个集成即时通讯功能的项目,用的是环信的SDK。用环信的接口可以快速实现即时通讯的很多功能。并且对官方demo稍加改动基本能够满足项目需求。真机测试时,发现图片的转发,每次都是转发失败。原因是ContactListSelectViewController这个控制器里无法正确获取到想转发的图片的缓存地址。


修改如下图:


ContactListSelectViewController.m
代码拷走直接用

- (BOOL)messageViewController:(EaseMessageViewController *)viewController
   didLongPressRowAtIndexPath:(NSIndexPath *)indexPath
{
    id object = [self.dataArray objectAtIndex:indexPath.row];
    if (![object isKindOfClass:[NSString class]]) {
        EaseMessageCell *cell = (EaseMessageCell *)[self.tableView cellForRowAtIndexPath:indexPath];
      //////////////////////////解决转发问题的代码///////////////////////////////
        EMImageMessageBody *imageBody = (EMImageMessageBody*)[cell.model.message body];
        EMMessageBodyType ty = cell.model.bodyType;
        if (ty == EMMessageBodyTypeImage) {
            NSString *str = cell.model.message == nil ? cell.model.thumbnailFileURLPath : [imageBody localPath];            [[NSUserDefaults standardUserDefaults] setValue:str  forKey:@"imgTosand"];
        }
      /////////////////////////解决转发问题的代码////////////////////////        [cell becomeFirstResponder];
        self.menuIndexPath = indexPath;        [self showMenuViewController:cell.bubbleView andIndexPath:indexPath messageType:cell.model.bodyType];
    }
    return YES;
}

ContactListSelectViewController是取数据,那么存数据要在ChatViewController控制器做存数据的操作。消息类型写死为EMChatTypeChat,是因为,不论是从单聊界面转发,还是从群聊界面转发,都只能转发给个人,所以这里写死,目前没有问题。
如下图:ChatViewController.m
代码拷走直接用

#pragma mark - EMUserListViewControllerDelegate
- (void)userListViewController:(EaseUsersListViewController *)userListViewController
            didSelectUserModel:(id<IUserModel>)userModel
{
    if (!self.messageModel) {
        return;
    }
    if (self.messageModel.bodyType == EMMessageBodyTypeText) {
        EMMessage *message = [EaseSDKHelper sendTextMessage:self.messageModel.text to:userModel.buddy messageType:EMChatTypeChat messageExt:self.messageModel.message.ext];
        __weak typeof(self) weakself = self;        [[EMClient sharedClient].chatManager sendMessage:message progress:nil completion:^(EMMessage *aMessage, EMError *aError) {
            if (!aError) {
//                NSMutableArray *array = [NSMutableArray arrayWithArray:[self.navigationController viewControllers]];
                UIViewController *chatController = nil;
#ifdef REDPACKET_AVALABLE
                chatController = [[RedPacketChatViewController alloc] initWithConversationChatter:userModel.buddy conversationType:EMConversationTypeChat];
#else
                chatController = [[ChatViewController alloc]
                                  initWithConversationChatter:userModel.buddy conversationType:EMConversationTypeChat];
#endif
                chatController.title = userModel.nickname.length != 0 ? [userModel.nickname copy] : [userModel.buddy copy];
//                if ([array count] >= 3) {
//                    [array removeLastObject];
//                    [array removeLastObject];
//                }
//                [array addObject:chatController];
//                [weakself.navigationController setViewControllers:array animated:YES];                 [weakself.navigationController popViewControllerAnimated:YES];
            } else {                [self showHudInView:self.view hint:Localized(@"transpondFail")];
            }
        }];
    } else if (self.messageModel.bodyType == EMMessageBodyTypeImage) {        [self showHudInView:self.view hint:Localized(@"transponding")];
        __weak typeof(self) weakSelf = self;
        NSString *localPath = [(EMImageMessageBody *)self.messageModel.message.body thumbnailLocalPath];
           //////////////////////////解决转发问题的代码////////////////////////////
        localPath = [[NSUserDefaults standardUserDefaults] valueForKey:@"imgTosand"];
           //////////////////////////解决转发问题的代码//////////////////////////
        UIImage *image = [UIImage imageWithContentsOfFile:localPath];
        void (^block)() = ^(EMMessage *message){
            EMImageMessageBody *imgBody = (EMImageMessageBody *)message.body;
            NSString *from = [[EMClient sharedClient] currentUsername];
            EMImageMessageBody *newBody = [[EMImageMessageBody alloc] initWithData:nil thumbnailData:[NSData dataWithContentsOfFile:imgBody.thumbnailLocalPath]];
            newBody.thumbnailLocalPath = imgBody.thumbnailLocalPath;
            newBody.thumbnailRemotePath = imgBody.thumbnailRemotePath;
            newBody.remotePath = imgBody.remotePath;
            EMMessage *newMsg = [[EMMessage alloc] initWithConversationID:userModel.buddy from:from to:userModel.buddy body:newBody ext:message.ext];
//            newMsg.chatType = message.chatType;//此为环信代码
            newMsg.chatType = EMChatTypeChat;//这里是我加的            [[EMClient sharedClient].chatManager sendMessage:newMsg progress:nil completion:^(EMMessage *message, EMError *error) {
                if (error) {                    [weakSelf showHudInView:self.view hint:Localized(@"transpondFail")];                    [weakSelf performSelector:@selector(backAction) withObject:nil afterDelay:1];
                    return ;
                }                [(EMImageMessageBody *)message.body setLocalPath:imgBody.localPath];                [[EMClient sharedClient].chatManager updateMessage:message completion:nil];

//                NSMutableArray *array = [NSMutableArray arrayWithArray:[weakSelf.navigationController viewControllers]];

#ifdef REDPACKET_AVALABLE
                RedPacketChatViewController *chatController = [[RedPacketChatViewController alloc] initWithConversationChatter:userModel.buddy conversationType:EMConversationTypeChat];
#else
                ChatViewController *chatController = [[ChatViewController alloc] initWithConversationChatter:userModel.buddy conversationType:EMConversationTypeChat];
#endif
                chatController.title = userModel.nickname.length != 0 ? userModel.nickname : userModel.buddy;
//                if ([array count] >= 3) {
//                    [array removeLastObject];
//                    [array removeLastObject];
//                }
//                [array addObject:chatController];
//                [weakSelf.navigationController setViewControllers:array animated:YES];                [weakSelf.navigationController popViewControllerAnimated:YES];//转发完跳回去
            }];
        };

        if (!image) {            [[EMClient sharedClient].chatManager downloadMessageThumbnail:self.messageModel.message progress:nil completion:^(EMMessage *message, EMError *error) {
                if (error) {                    [weakSelf showHudInView:self.view hint:Localized(@"transpondFail")];                    [weakSelf performSelector:@selector(backAction) withObject:nil afterDelay:1];
                    return ;
                }

                block(message);
            }];
        } else {
            block(self.messageModel.message);
        }
    }
}

上面一定要判断一下消息体类型,只有消息体为图片类型(EMMessageBodyTypeImage)才需要保存图片本地。如果不做判断的话,点击气泡马上崩掉。


通过我的方法可以解决图片转发的问题,但并不是最好的解决办法,推荐大家在做的时候参考环信官方的实现!