cms网站建设系统,有优惠券网站 怎么做代理,wordpress 执行效率,网站需求报告怎么写环信HarmonyOS IM SDK 正式版已经发布#xff0c;该版本全面覆盖即时通讯#xff08;IM#xff09;的核心功能#xff0c;为用户提供了完整的IM全功能体验#xff0c;同时支持从Android APK到 NEXT 的数据迁移#xff0c;更好地满足企业在不同业务场景下的适配需求。
点…环信HarmonyOS IM SDK 正式版已经发布该版本全面覆盖即时通讯IM的核心功能为用户提供了完整的IM全功能体验同时支持从Android APK到 NEXT 的数据迁移更好地满足企业在不同业务场景下的适配需求。
点此下载最新版环信 HarmonyOS IM SDK
环信鸿蒙IM SDK 除文本消息外还支持发送附件类型消息包括语音、图片、视频和文件消息。本文为大家介绍从系统获取系统图片视频语音文件使用sdk进行发送与下载。
一、发送附件消息
1、发送图片消息
① 权限添加 在对应模块的module.json5配置中添加requestPermissions节点和对应权限的配置
{name: ohos.permission.READ_MEDIA,reason: $string:app_name,usedScene: {abilities: [EntryAbility]}
},
{name: ohos.permission.WRITE_MEDIA,reason: $string:app_name,usedScene: {abilities: [EntryAbility]}
}② 权限检测
//检查权限
export async function checkAppPermission(context:common.UIAbilityContext): Promiseboolean {try {const READ_MEDIA_PERMISSION: Permissions ohos.permission.READ_MEDIA //媒体读取权限const WRITE_MEDIA_PERMISSION: Permissions ohos.permission.WRITE_MEDIA //媒体写入权限let permissionList: Permissions[] []; //需要申请选项列表let readPermission await checkPermissions(READ_MEDIA_PERMISSION)//检查是否有媒体读取权限!readPermission permissionList.push(READ_MEDIA_PERMISSION)let writePermission await checkPermissions(WRITE_MEDIA_PERMISSION)//检查是否有媒体写入权限!writePermission permissionList.push(READ_MEDIA_PERMISSION)if (permissionList.length) {//申请权限let res: boolean await applyPermission(context, permissionList)if (!res) {//用户未同意授权AlertDialog.show({title: 提示,message: 无权限读写用户外部存储中的媒体文件信息请前往系统设置开启,alignment: DialogAlignment.Center,secondaryButton: {value: 关闭,action: () {}}})
}
return res
}
return true}catch (e) {return Promise.reject(e)
}
}检查用户权限
//检查用户权限
//params permissions:权限名称数组
export async function checkPermissions(permissions: Permissions): Promiseboolean {try {let grantStatus: abilityAccessCtrl.GrantStatus await checkAccessToken(permissions);return grantStatus abilityAccessCtrl.GrantStatus.PERMISSION_GRANTED}catch (e) {return Promise.reject(e)}
}从相册中选择图片 //从相册选择let PhotoSelectOptions new picker.PhotoSelectOptions();PhotoSelectOptions.MIMEType picker.PhotoViewMIMETypes.IMAGE_TYPE;PhotoSelectOptions.maxSelectNumber 1;let photoPicker new picker.PhotoViewPicker();photoPicker.select(PhotoSelectOptions).then(async (PhotoSelectResult) {if (PhotoSelectResult.photoUris.length) {//复制图片到缓存目录缓存目录才有读写权限let filePath PhotoSelectResult.photoUris[0]if (filePath) {//这里获取到的filePath 就是图片的路径}}发送方调用 createImageSendMessage 方法传入图片的本地资源标志符 URI、设置是否发送原图以及接收方的用户 ID 群聊或聊天室分别为群组 ID 或聊天室 ID创建图片消息然后调用 sendMessage 方法发送该消息。SDK 会将图片上传至环信服务器服务器自动生成图片缩略图。
这里imageFilePathOrUri 为上面获取到的filePath
// imageFilePathOrUri 为图片本地路径或者Uri。
let message ChatMessage.createImageSendMessage(toChatUsername, imageFilePathOrUri);
// 会话类型包含 Chat、GroupChat 和 ChatRoom表示单聊、群聊或聊天室默认为单聊。
message.setChatType(ChatType.GroupChat);
// 发送消息
ChatClient.getInstance().chatManager()?.sendMessage(message);
2、发送视频消息
① 缩略图获取
import picker from ohos.file.picker;
import {checkAppPermission} from ../../utils/permissions/CheckAccess
import { common } from kit.AbilityKit;
import camerapicker from ohos.multimedia.cameraPicker;
import camera from ohos.multimedia.camera;
import { BusinessError } from ohos.base;
import { ChatMessage, } from easemob
import SendMessages from ../../presenter/SendMessage
//全局公共样式
Styles
function fillScreen() {.width(100%).backgroundColor(Color.White).borderRadius(20).padding(10)
}CustomDialog
Component
export struct AttachmentMessageDialog {Prop conversationId: ResourceStrProp imgMsg: ChatMessage|undefined undefinedchangeMessage (imgMsg: ChatMessage|undefined) {}private controller: CustomDialogControllerprivate context getContext(this) as common.UIAbilityContext; //UIAbilityContextbuild() {Column() {Row(){Image($r(app.media.ease_chat_takepic_pressed)).width(20).height(20)Text(相机).fontColor(#33b1ff)}.width(100%).padding({top:30,left:20,bottom:20}).onClick(async (){this.camera()})Row(){}.width(100%).backgroundColor(#e7e9eb).height(1)Row(){Image($r(app.media.ease_chat_image_pressed)).width(20).height(20)Text(相册).fontColor(#33b1ff)}.width(100%).padding({top:20,left:20,bottom:20}).onClick(async () {this.photo()})Row(){}.width(100%).backgroundColor(#e7e9eb).height(1)Row(){Image($r(app.media.em_chat_video_pressed)).width(20).height(20)Text(视频).fontColor(#33b1ff)}.width(100%).padding({top:20,left:20,bottom:20}).onClick(async (){ this.video()})Row(){}.width(100%).backgroundColor(#e7e9eb).height(1)Row(){Image($r(app.media.em_chat_card_normal)).width(20).height(20)Text(名片).fontColor(#33b1ff)}.width(100%).padding({top:20,left:20,bottom:20}).onClick( (){})Row(){}.width(100%).backgroundColor(#e7e9eb).height(7)Row(){Text(取消).fontColor(#33b1ff)}.padding({top:20,left:20,bottom:20})}.width(100%)}private async photo(){//检查是否有读写外部媒体权限let res: boolean await checkAppPermission(this.context)//无权限返回if (!res) return//从相册选择let PhotoSelectOptions new picker.PhotoSelectOptions();PhotoSelectOptions.MIMEType picker.PhotoViewMIMETypes.IMAGE_TYPE;PhotoSelectOptions.maxSelectNumber 1;let photoPicker new picker.PhotoViewPicker();photoPicker.select(PhotoSelectOptions).then(async (PhotoSelectResult) {if (PhotoSelectResult.photoUris.length) {//复制图片到缓存目录缓存目录才有读写权限let filePath PhotoSelectResult.photoUris[0]if (filePath) {SendMessages.sendImageMessage(this.conversationId, filePath).then((value){this.changeMessage(value)})}}})}private async camera(){//检查是否有读写外部媒体权限let res: boolean await checkAppPermission(this.context)//无权限返回if (!res) returntry {let pickerProfile: camerapicker.PickerProfile {cameraPosition: camera.CameraPosition.CAMERA_POSITION_BACK};let pickerResult: camerapicker.PickerResult await camerapicker.pick(this.context,[camerapicker.PickerMediaType.PHOTO, camerapicker.PickerMediaType.PHOTO], pickerProfile);if(pickerResult?.resultUri){}} catch (error) {let err error as BusinessError;console.error(the pick call failed. error code: ${err.code});}}private async video(){console.log(this.conversationId------)//检查是否有读写外部媒体权限let res: boolean await checkAppPermission(this.context)//无权限返回if (!res) return//从相册选择let PhotoSelectOptions new picker.PhotoSelectOptions();PhotoSelectOptions.MIMEType picker.PhotoViewMIMETypes.VIDEO_TYPE;PhotoSelectOptions.maxSelectNumber 1;let photoPicker new picker.PhotoViewPicker();photoPicker.select(PhotoSelectOptions).then(async (PhotoSelectResult) {if (PhotoSelectResult.photoUris.length) {//复制图片到缓存目录缓存目录才有读写权限let filePath PhotoSelectResult.photoUris[0]if (filePath) {SendMessages.sendVideoMessage(this.conversationId, filePath,this.context).then((value){this.changeMessage(value)})console.log(PhotoSelectOptions,filePath)}}})}
}
②发送方调用 createVideoSendMessage 方法传入接收方的用户 ID群聊或聊天室分别为群组 ID 或聊天室 ID、视频文件的本地路径、视频时长以及缩略图的本地存储路径然后调用 sendMessage 方法发送消息。SDK 会将视频文件上传至消息服务器。若需要视频缩略图你需自行获取视频首帧的路径将该路径传入 createVideoSendMessage 方法。 上面获取到视频首诊
// 在应用层获取视频首帧
let thumbPath this.getThumbPath(videoPath);
let message ChatMessage.createVideoSendMessage(toChatUsername, videoPath, videoLength, thumbPath);
if (!message) {return;
}
// 会话类型包含 Chat、GroupChat 和 ChatRoom表示单聊、群聊或聊天室默认为单聊。
message.setChatType(ChatType.GroupChat);
// 发送消息
ChatClient.getInstance().chatManager()?.sendMessage(message);
3、发送语音消息
①音频录制
// 音频录制
import { media } from kit.MediaKit;
import { BusinessError, systemDateTime } from kit.BasicServicesKit;
import fs from ohos.file.fs;
class AudioRecorder {private avRecorder: media.AVRecorder | undefined undefined;public maxAmplitude: number 0;public audioPath private avProfile: media.AVRecorderProfile {audioBitrate: 100000, // 音频比特率audioChannels: 2, // 音频声道数audioCodec: media.CodecMimeType.AUDIO_AAC, // 音频编码格式当前只支持aacaudioSampleRate: 48000, // 音频采样率fileFormat: media.ContainerFormatType.CFT_MPEG_4A, // 封装格式当前只支持m4a};private avConfig: media.AVRecorderConfig {audioSourceType: media.AudioSourceType.AUDIO_SOURCE_TYPE_MIC, // 音频输入源这里设置为麦克风profile: this.avProfile,url: fd://35, // 参考应用文件访问与管理开发示例新建并读写一个文件};// 注册audioRecorder回调函数setAudioRecorderCallback(): void {if (this.avRecorder ! undefined) {// 状态机变化回调函数this.avRecorder.on(stateChange, (state: media.AVRecorderState, _: media.StateChangeReason) {console.log(AudioRecorder current state is ${state});})// 错误上报回调函数this.avRecorder.on(error, (err: BusinessError) {console.error(AudioRecorder failed, code is ${err.code}, message is ${err.message});})}}// 开始录制对应的流程async startRecordingProcess(): Promisevoid {if (this.avRecorder ! undefined) {await this.avRecorder.release();this.avRecorder undefined;}// 1.创建录制实例this.avRecorder await media.createAVRecorder();this.setAudioRecorderCallback();// 2.获取录制文件fd赋予avConfig里的url参考FilePicker文档const context getContext(this);const path context.filesDir;let currentTimeMillis: number new Date().getTime();const filepath path / currentTimeMillis .wav;this.audioPath filepathconst file fs.openSync(filepath, fs.OpenMode.READ_WRITE | fs.OpenMode.CREATE);const fdNumber file.fd;this.avConfig.url fd:// fdNumber;// 3.配置录制参数完成准备工作await this.avRecorder.prepare(this.avConfig);// 4.开始录制await this.avRecorder.start();}// 暂停录制对应的流程async pauseRecordingProcess(): Promisevoid {if (this.avRecorder ! undefined this.avRecorder.state started) { // 仅在started状态下调用pause为合理状态切换await this.avRecorder.pause();}}// 恢复录制对应的流程async resumeRecordingProcess(): Promisevoid {if (this.avRecorder ! undefined this.avRecorder.state paused) { // 仅在paused状态下调用resume为合理状态切换await this.avRecorder.resume();}}// 停止录制对应的流程async stopRecordingProcess(): Promisevoid {if (this.avRecorder ! undefined) {// 1. 停止录制if (this.avRecorder.state started|| this.avRecorder.state paused) { // 仅在started或者paused状态下调用stop为合理状态切换await this.avRecorder.stop();}// 2.重置await this.avRecorder.reset();// 3.释放录制实例await this.avRecorder.release();this.avRecorder undefined;}}
}let audioRecorder new AudioRecorder()
export default audioRecorder as AudioRecorder②发送方调用 createVoiceSendMessage 方法传入接收方的用户 ID群聊或聊天室分别为群组 ID 或聊天室 ID、语音文件的路径和语音时长创建语音消息然后调用 sendMessage 方法发送消息。SDK 会将语音文件上传至环信服务器
// filePathOrUri 为语音文件的本地路径或者文件的 URIduration 为语音时长单位为秒。
let message ChatMessage.createVoiceSendMessage(to, filePathOrUri, duration);
if (!message) {return;
}
// 设置会话类型即ChatMessage 类的 ChatType 属性包含 Chat、GroupChat 和 ChatRoom表示单聊、群聊或聊天室默认为单聊。
message.setChatType(ChatType.GroupChat);
// 发送消息
ChatClient.getInstance().chatManager()?.sendMessage(message);
二、接收附件消息
1、接收语音文件 接收方收到 onMessageReceived 回调调用 getRemoteUrl 或 getLocalPath 方法获取语音文件的服务器地址或本地路径从而获取语音文件。
let voiceBody message.getBody() as VoiceMessageBody;
// 获取语音文件在服务器的地址。
let voiceRemoteUrl voiceBody.getRemoteUrl();
// 本地语音文件的本地路径。
let voiceLocalPath voiceBody.getLocalPath();
2、接收图片消息 接收方收到图片消息自动下载图片缩略图。 SDK 默认自动下载缩略图即 ChatOptions.setAutoDownloadThumbnail 设置为 true。若设置为手动下载缩略图即 ChatOptions.setAutoDownloadThumbnail 设置为 false 需调用 ChatClient.getInstance().chatManager()?.downloadThumbnail(message) 下载。 接收方收到 onMessageReceived 回调调用 downloadAttachment 下载原图。
let msgListener: ChatMessageListener {onMessageReceived: (messages: ChatMessage[]): void {messages.forEach( message {if (message.getType() ContentType.IMAGE) {let callback: ChatCallback {onSuccess: (): void {// 附件下载成功},onError: (code: number, error: string): void {// 附件下载失败},onProgress: (progress: number): void {// 附件下载进度}}message.setMessageStatusCallback(callback);// 下载附件ChatClient.getInstance().chatManager()?.downloadAttachment(message);}})}
}
3、接收视频消息 接收方收到视频消息时自动下载视频缩略图。 SDK 默认自动下载缩略图即 ChatOptions.setAutoDownloadThumbnail 设置为 true 。若设置为手动下载缩略图即 ChatOptions.setAutoDownloadThumbnail 设置为 false需调用 ChatClient.getInstance().chatManager()?.downloadThumbnail(message) 下载。 接收方收到 onMessageReceived 回调可以调用 ChatClient.getInstance().chatManager()?.downloadAttachment(message) 方法下载视频原文件
let msgListener: ChatMessageListener {onMessageReceived: (messages: ChatMessage[]): void {messages.forEach( message {if (message.getType() ContentType.VIDEO) {let callback: ChatCallback {onSuccess: (): void {// 附件下载成功},onError: (code: number, error: string): void {// 附件下载失败},onProgress: (progress: number): void {// 附件下载进度}}message.setMessageStatusCallback(callback);// 下载附件ChatClient.getInstance().chatManager()?.downloadAttachment(message);}})}
}
获取视频缩略图和视频原文件。
let body message.getBody() as VideoMessageBody;
// 从服务器端获取视频文件。
let imgRemoteUrl body.getRemoteUrl();
// 从服务器获取视频缩略图文件。
let thumbnailUrl body.getThumbnailRemoteUrl();
// 从本地获取视频文件文件。
let localPath body.getLocalPath();
// 从本地获取视频缩略图文件。
let localThumbPath body.getThumbnailLocalPath();参考文档 注册环信IMhttps://console.easemob.com/user/register 环信官方Demo下载https://www.easemob.com/download/demo
