Kotlin高仿微信-项目实践58篇详细讲解了各个功能点，包括：注册、登录、主页、单聊(文本、表情、语音、图片、小视频、视频通话、语音通话、红包、转账)、群聊、个人信息、朋友圈、支付服务、扫一扫、搜索好友、添加好友、开通VIP等众多功能。

Kotlin高仿微信-项目实践58篇，点击查看详情

效果图：

详细的聊天功能请查看Kotlin高仿微信-第8篇-单聊，这里是提取图片功能的部分实现。

实现代码：

显示图片：

打开相册：

//单选  // 打开相册
ImageSelector.builder().useCamera(false) // 设置是否使用拍照.setSingle(true) //设置是否单选.canPreview(true) //是否点击放大图片查看,，默认为true.start(this,REQUEST_PICTURE_CODE)

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {super.onActivityResult(requestCode, resultCode, data)if (requestCode == REQUEST_PICTURE_CODE && data != null) {val images = data.getStringArrayListExtra(ImageSelector.SELECT_RESULT)if(images != null && images.size > 0) {AddFileListener.sendFile(ChatBean.CONTENT_TYPE_IMG, images[0], toUserId,0)}}
}

/*** 发送图片、小视频、语音* @param fileType Int* @param picPath String* @param toUserID String*/
fun sendFile(fileType: Int, filePath : String, toUserId : String, time: Int) {CoroutineScope(Dispatchers.IO).launch {//语音、小视频多少秒val toId: String = BaseUtils.getChatId(toUserId) + "/Smack"var resultFilePath = ""if(TextUtils.isEmpty(filePath)){return@launch}if(!File(filePath).exists()){return@launch}var second = timeif(fileType == ChatBean.CONTENT_TYPE_VOICE){second = time} else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){second = CommonUtils.Media.getMediaTime(filePath, fileType)}//先刷新页面，再慢慢上传文件var chatBean = processSendChatBean(toUserId, fileType, filePath, second)if(fileType == ChatBean.CONTENT_TYPE_IMG){//图片//压缩图片后路径var resultPicPath = UploadFileUtils.getCompressFile(filePath)resultFilePath = resultPicPath} else if(fileType == ChatBean.CONTENT_TYPE_VOICE){//语音resultFilePath = filePathTagUtils.d("语音时间：${second}")} else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){//小视频var videoFilePath = UploadFileUtils.getVideoCompressFile()//TagUtils.d("开始发送小视频压缩前文件2：${videoFilePath}")var compressResult = VideoController.getInstance().convertVideo(filePath, videoFilePath, VideoController.COMPRESS_QUALITY_LOW, object : VideoController.CompressProgressListener {override fun onProgress(percent: Float) {//TagUtils.d("压缩小视频进度：${percent}")}})TagUtils.d("小视频时间：${second}")resultFilePath = videoFilePath}TagUtils.d("上传文件：${resultFilePath}")val filetosend = File(resultFilePath)if (!filetosend.exists()) {return@launch}try {var account : String = DataStoreUtils.getAccount()if(fileType == ChatBean.CONTENT_TYPE_IMG){//图片TagUtils.d("图片发送成功。")var chatBeanServer = UploadFileUtils.uploadChatImages(account, toUserId, resultFilePath,0)if(chatBeanServer != null){chatBeanServer.imgPath = chatBeanServer.imgPathchatBean = chatBeanServer}} else if(fileType == ChatBean.CONTENT_TYPE_VOICE){//录音完成，要转码，等待0.2秒再发送delay(100)//语音var chatBeanServer = UploadFileUtils.uploadChatVoice(account, toUserId, resultFilePath, second)if(chatBeanServer != null){chatBeanServer.voiceLocal = resultFilePathchatBean = chatBeanServer}} else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){//小视频var chatBeanServer = UploadFileUtils.uploadChatVideo(account, toUserId, resultFilePath, second)if(chatBeanServer != null){chatBeanServer.videoLocal = resultFilePathchatBean = chatBeanServer}}chatBean?.let {ChatRepository.updateChat(it)}var baseSystemBoolean = BaseSystemRepository.getBaseSystemSync(WcApp.getContext().packageName)if(baseSystemBoolean != null && baseSystemBoolean.sync == CommonUtils.Sync.SERVER_SYNC){//同步不需要使用transfer上传文件，因为transfer上传太慢了， 直接上传到服务器，然后发送普通的消息if(fileType == ChatBean.CONTENT_TYPE_VOICE){var content = CommonUtils.Chat.VOICE_MARK + chatBean.voiceChatManagerUtils.getInstance().sendMessage(toUserId, content)} else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){var content = CommonUtils.Chat.VIDEO_MARK + chatBean.videoChatManagerUtils.getInstance().sendMessage(toUserId, content)} else if(fileType == ChatBean.CONTENT_TYPE_IMG){var content = CommonUtils.Chat.IMAGE_MARK + chatBean.imgPathChatManagerUtils.getInstance().sendMessage(toUserId, content)}return@launch}val fileTransferManager = getFileTransferManager()val transfer = fileTransferManager.createOutgoingFileTransfer(toId) // 创建一个输出文件传输对象//对方用户在线才需要上传文件if(XmppConnectionManager.getInstance().isOnLine(toUserId)){TagUtils.d("${toUserId} 在线 开始上传。")transfer.sendFile(filetosend,"recv img")while (!transfer.isDone) {if (transfer.status == FileTransfer.Status.error) {TagUtils.d("聊天文件上传错误 ， ERROR!!! " + transfer.error)} else {TagUtils.d("聊天文件上传 " + transfer.status +" , " + transfer.progress)}Thread.sleep(20)}} else {TagUtils.d("toUserId 不在线")}if (transfer.isDone) {//上传完成}} catch (e1: XMPPException) {e1.printStackTrace()}}
}

/*** Author : wangning* Email : maoning20080809@163.com* Date : 2022/5/31 16:31* Description : 处理聊天信息发来的信息*/
class ChatManagerListener : ChatManagerListener {override fun chatCreated(chat: Chat, createdLocally: Boolean) {TagUtils.d("消息监听回调：chat = ${chat} , createdLocally = ${createdLocally}")if(!createdLocally){chat.addMessageListener { chat, message ->TagUtils.d("获取好友发来的信息 ${message.from} , ${message.to}, ${message.body}")var content = message.getBody()if(!TextUtils.isEmpty(content) && content.length > 0){var fromUser = BaseUtils.getChatAccountFrom(message.from)var toUser = BaseUtils.getChatAccount(message.to)var userType = ChatBean.USER_TYPE_OTHERif(content.startsWith(CommonUtils.Chat.LOCATION_MARK)){//发送定位//去掉location###标志var remarkContent = CommonUtils.Chat.getLocation(content)//使用逗号分隔符，分别读取经纬度var contents = remarkContent.split(",")var latitude = contents[0].toDouble()var longitude = contents[1].toDouble()var chatBean = CommonUtils.Chat.getChatBean(fromUser, toUser, userType, content, ChatBean.CONTENT_TYPE_LOCATION, "", latitude, longitude)ChatRepository.insertChat(chatBean)chatBean.isReceive = trueEventBus.getDefault().post(chatBean)} else if(content.startsWith(CommonUtils.Chat.REDPACKET_MARK)){//发送红包， 去掉redpacket###写入数据库content = CommonUtils.Chat.getRedpacket(content).toString()var chatBean = CommonUtils.Chat.getChatBean(fromUser, toUser, userType, content, ChatBean.CONTENT_TYPE_REDPACKET, "",0.0, 0.0)ChatRepository.insertChat(chatBean)chatBean.isReceive = trueEventBus.getDefault().post(chatBean)} else if(content.startsWith(CommonUtils.Chat.VOICE_MARK)){//发送语音， 去掉voice###写入数据库content = CommonUtils.Chat.getMedia(content, CommonUtils.Chat.VOICE_MARK)var chatBean = CommonUtils.Chat.getChatBeanVoiceServer(fromUser, toUser, userType,ChatBean.CONTENT_TYPE_VOICE, content,0)chatBean.isReceive = trueprocessDownload(chatBean)} else if(content.startsWith(CommonUtils.Chat.VIDEO_MARK)){//发送小视频， 去掉video###写入数据库content = CommonUtils.Chat.getMedia(content, CommonUtils.Chat.VIDEO_MARK)var chatBean = CommonUtils.Chat.getChatBeanVideoServer(fromUser, toUser, userType,ChatBean.CONTENT_TYPE_VIDEO, content,0)chatBean.isReceive = trueprocessDownload(chatBean)} else if(content.startsWith(CommonUtils.Chat.IMAGE_MARK)){//发送图片， 去掉image###写入数据库content = CommonUtils.Chat.getMedia(content, CommonUtils.Chat.IMAGE_MARK)var chatBean = CommonUtils.Chat.getChatBeanImageServer(fromUser, toUser, userType,ChatBean.CONTENT_TYPE_IMG, content,0)chatBean.isReceive = trueprocessDownload(chatBean)} else if(content.startsWith(CommonUtils.Chat.TRANSFER_MARK)){//发送转账， 去掉transfer###写入数据库content = CommonUtils.Chat.getTransfer(content).toString()var chatBean = CommonUtils.Chat.getChatBean(fromUser, toUser, userType, content, ChatBean.CONTENT_TYPE_TRANSFER, "",0.0, 0.0)ChatRepository.insertChat(chatBean)chatBean.isReceive = trueEventBus.getDefault().post(chatBean)} else if(content.startsWith(CommonUtils.QRCommon.QR_RECEIVE_CODE)){//向个人发送收款var balance = content.substring(CommonUtils.QRCommon.QR_RECEIVE_CODE.length, content.length)TagUtils.d("MyChatManagerListener 向个人发送收款金额： ${fromUser} , ${toUser},  ${balance}")updateBalanceServer(fromUser, toUser, CommonUtils.User.OPERATOR_PLUS, balance.toFloat())} else if(content.startsWith(CommonUtils.QRCommon.QR_PAYMENT_CODE)){//向商家付款var balance = content.substring(CommonUtils.QRCommon.QR_RECEIVE_CODE.length, content.length)TagUtils.d("MyChatManagerListener 向商家付款金额： ${fromUser} , ${toUser}, ${balance}")updateBalanceServer(fromUser, toUser, CommonUtils.User.OPERATOR_MINUS, balance.toFloat())} else {var chatBean = CommonUtils.Chat.getChatBean(fromUser, toUser, userType, content, ChatBean.CONTENT_TYPE_TEXT, "",0.0, 0.0)ChatRepository.insertChat(chatBean)chatBean.isReceive = trueEventBus.getDefault().post(chatBean)}ChatNotificationUtils.sendNotification(fromUser)}}}}/*** 下载图片、语音、小视频*/private fun processDownload(chatBean : ChatBean){var fileName = ""if(chatBean.contentType == ChatBean.CONTENT_TYPE_VOICE){fileName = chatBean.voice} else if(chatBean.contentType == ChatBean.CONTENT_TYPE_VIDEO){fileName = chatBean.video} else if(chatBean.contentType == ChatBean.CONTENT_TYPE_IMG){fileName = chatBean.imgPath} else {return}var videoUrl = CommonUtils.Moments.getReallyImageUrl(fileName)var videoFile = FileUtils.getBaseFile(fileName)TagUtils.d("下载多媒体Url ：${videoUrl} ")TagUtils.d("下载多媒体File ：${videoFile} ")VideoDownloadManager.downloadFast(videoUrl, videoFile, object : VideoDownloadInter {override fun onDone(filePath: String) {TagUtils.d("小视频多媒体完成：${filePath}")if(chatBean.contentType == ChatBean.CONTENT_TYPE_VOICE){var second = CommonUtils.Media.getMediaTime(filePath, chatBean.contentType)chatBean.second = secondchatBean.voiceLocal = filePath} else if(chatBean.contentType == ChatBean.CONTENT_TYPE_VIDEO){chatBean.videoLocal = filePathvar second = CommonUtils.Media.getMediaTime(filePath, chatBean.contentType)chatBean.second = second} else if(chatBean.contentType == ChatBean.CONTENT_TYPE_IMG){chatBean.imgPathLocal = filePath}ChatRepository.insertChat(chatBean)EventBus.getDefault().post(chatBean)}override fun onError() {}override fun onProgress(process: Int) {}})}