Kotlin高仿微信-第12篇-单聊-图片

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：

<androidx.appcompat.widget.AppCompatImageView
    android:id="@+id/chat_item_me_img"
    app:layout_constraintEnd_toStartOf="@+id/chat_item_me_avatar"
    app:layout_constraintTop_toTopOf="parent"
    android:layout_width="100dp"
    android:layout_height="200dp"
    android:scaleType="centerCrop"
    android:layout_marginEnd="10dp"
    android:src="@drawable/wc_loading_default"
    android:visibility="gone"/>

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 = time

        if(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 = filePath

            TagUtils.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.imgPath
                    chatBean = 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 = resultFilePath
                    chatBean = chatBeanServer
                }
            } else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){
                //小视频
                var chatBeanServer = UploadFileUtils.uploadChatVideo(account, toUserId, resultFilePath, second)
                if(chatBeanServer != null){
                    chatBeanServer.videoLocal = resultFilePath
                    chatBean = 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.voice
                    ChatManagerUtils.getInstance().sendMessage(toUserId, content)
                } else if(fileType == ChatBean.CONTENT_TYPE_VIDEO){
                    var content = CommonUtils.Chat.VIDEO_MARK + chatBean.video
                    ChatManagerUtils.getInstance().sendMessage(toUserId, content)
                } else if(fileType == ChatBean.CONTENT_TYPE_IMG){
                    var content = CommonUtils.Chat.IMAGE_MARK + chatBean.imgPath
                    ChatManagerUtils.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_OTHER

                    if(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 = true
                        EventBus.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 = true
                        EventBus.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 = true
                        processDownload(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 = true
                        processDownload(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 = true
                        processDownload(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 = true
                        EventBus.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 = true
                        EventBus.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 = second
                    chatBean.voiceLocal = filePath
                } else if(chatBean.contentType == ChatBean.CONTENT_TYPE_VIDEO){
                    chatBean.videoLocal = filePath
                    var 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) {
            }
        })
    }