Flutter高仿微信系列共59篇，从Flutter客户端、Kotlin客户端、Web服务器、数据库表结构、Xmpp即时通讯服务器、视频通话服务器、腾讯云服务器全面讲解。
详情请查看
效果图：
详情请参考 Flutter高仿微信-第29篇-单聊 ， 这里只是提取语音聊天实现的部分代码。
实现代码：
//我的语言Widget meVoiceWidget(){ return InkWell( onTap: () { widget.clickVoiceCallback(true); setState(() { widget.chatBean.isPlayVoice = true; }); //点击语音 AudioPlayer.getInstance().playLocal(widget.chatBean.voiceLocal??"", callback: (data){ //录音回调 setState(() { widget.chatBean.isPlayVoice = false; }); }); }, child : Container( width: 120, height: 40, padding: EdgeInsets.symmetric(vertical: 4.0, horizontal: 2.0), decoration: BoxDecoration(borderRadius: BorderRadius.all(Radius.circular(1.0),),color: Color(0xFF9EEA6A),), child: Row( crossAxisAlignment: CrossAxisAlignment.center, mainAxisAlignment: MainAxisAlignment.center, children: [ Text("${widget.chatBean.second}'"), SizedBox(width: 4,), widget.chatBean.isPlayVoice?Image.asset("assets/chat/wn_chat_me_animator.gif", height: 24,):Image.asset("assets/chat/wn_chat_me_volume_3.png", height: 24,), ], ), ) );} //朋友的语音Widget toVoiceWidget(){ return InkWell( onTap: () { setState(() { widget.chatBean.isPlayVoice = true; }); LogUtils.d("点击语音"); AudioPlayer.getInstance().playLocal(widget.chatBean.voiceLocal??"", callback: (data){ LogUtils.d("录音回调：${data}"); setState(() { widget.chatBean.isPlayVoice = false; }); }); }, child : Container( width: 120, height: 40, padding: EdgeInsets.symmetric(vertical: 4.0, horizontal: 2.0), decoration: BoxDecoration(borderRadius: BorderRadius.all(Radius.circular(5.0),),color: Color(0xFFEDEDED)), child: Row( crossAxisAlignment: CrossAxisAlignment.center, mainAxisAlignment: MainAxisAlignment.center, children: [ widget.chatBean.isPlayVoice?Image.asset("assets/chat/wn_chat_other_animator.gif", height: 34,):Image.asset("assets/chat/wn_chat_other_volume_3.png", height: 34,), SizedBox(width: 4,), Text("${widget.chatBean.second}'"), ], ), ) );} //发送多媒体(图片、语音、小视频)void _sendMedia(int type, String mediaURL, {int mediaSecond = 0, String messageId = ""}) async { bool isNetwork = await CommonNetwork.isNetwork(); if(!isNetwork) { return; } bool deleteContacts = await isDeleteContacts(widget.account, widget.toChatId); if(deleteContacts){ return; } //上传文件 ChatBean serverChatBean; String message = ""; ChatSendBean chatSendBean = ChatSendBean(); chatSendBean.contentType = type; chatSendBean.messageId = messageId; chatSendBean.addTime = WnDateUtils.getCurrentTime(); if(type == CommonUtils.CHAT_CONTENT_TYPE_VOICE){ //语音 serverChatBean = await UploadUtils.getInstance().uploadChatVoice(widget.account, widget.toChatId, mediaURL); chatSendBean.content = serverChatBean.voice??""; chatSendBean.second = mediaSecond; } else { return ; } message = jsonEncode(chatSendBean); _sendMessage(message);}接收语音：
String serverVoicePath = CommonUtils.BASE_URL_UPLOAD + content;String localVoicePath = await FileUtils.getBaseFile("${DateUtil.getNowDateMs()}.mp3");//先下载语音await DownloadUtils.getInstance().downloadFile(serverVoicePath, localVoicePath);chatBean.voice = serverVoicePath;chatBean.voiceLocal = localVoicePath;chatBean.second = second; //通知栏提示NotificationUtils.getInstance().showNotification(chatBean);//插入本地数据库ChatRepository.getInstance().insertChat(chatBean);//刷新页面eventBus.emit(chatBean);