chat.createTextMessage(options);

// 发送文本消息，Web 端与小程序端相同
// 1. 创建消息实例，接口返回的实例可以上屏
let message = chat.createTextMessage({
  to: 'user1',
  conversationType: TencentCloudChat.TYPES.CONV_C2C,
  // 消息优先级，用于群聊。如果某个群的消息超过了频率限制，后台会优先下发高优先级的消息
  // priority: TencentCloudChat.TYPES.MSG_PRIORITY_NORMAL,
  payload: {
    text: 'Hello world!'
  },
  // 如果您发消息需要已读回执，需购买旗舰版套餐，并且创建消息时将 needReadReceipt 设置为 true
  needReadReceipt: true
  // 消息自定义数据（云端保存，会发送到对端，程序卸载重装后还能拉取到）
  // cloudCustomData: 'your cloud custom data'
});
// 2. 发送消息
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

// 发送群定向消息
// 注意：群定向消息不计入会话未读，receiverList 最大支持50个接收者。
let message = chat.createTextMessage({
  to: 'group1',
  conversationType: TencentCloudChat.TYPES.CONV_GROUP,
  payload: {
    text: 'Hello world!'
  },
  // 如果您需要发群定向消息，需购买旗舰版套餐，并且创建消息时通过 receiverList 指定消息接收者
  receiverList: ['user0', 'user1']
});
// 发送消息
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

chat.createTextAtMessage(options);

// 发送文本消息，Web 端与小程序端相同
// 1. 创建消息实例，接口返回的实例可以上屏
let message = chat.createTextAtMessage({
  to: 'group1',
  conversationType: TencentCloudChat.TYPES.CONV_GROUP,
  // 消息优先级，用于群聊
  // priority: TencentCloudChat.TYPES.MSG_PRIORITY_NORMAL,
  payload: {
    text: '@denny @lucy @所有人 今晚聚餐，收到的请回复1',
    // 'denny' 'lucy' 都是 userID，而非昵称
    atUserList: ['denny', 'lucy', TencentCloudChat.TYPES.MSG_AT_ALL]
  },
  // 消息自定义数据（云端保存，会发送到对端，程序卸载重装后还能拉取到）
  // cloudCustomData: 'your cloud custom data'
});
// 2. 发送消息
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

npm install react-native-image-picker --save

chat.createImageMessage(options);

import {launchImageLibrary} from 'react-native-image-picker';
// 1. 选择图片
launchImageLibrary({
  mediaType: 'photo',
  selectionLimit: 1,
}).then((result) => {
 const file = result.assets[0];
 // 2. 创建消息实例，接口返回的实例可以上屏
 let message = chat.createImageMessage({
    to: 'user1',
    conversationType: TencentCloudChat.TYPES.CONV_C2C,
    payload: { file: file },
    // React Native 不支持上传进度回调
    // onProgress: function(event) { console.log('file uploading:', event) }
  });
  // 3. 发送图片
  let promise = chat.sendMessage(message);
  promise.then(function(imResponse) {
    // 发送成功
    console.log(imResponse);
  }).catch(function(imError) {
    // 发送失败
    console.warn('sendMessage error:', imError);
  });
});

import {launchCamera} from 'react-native-image-picker';
// 1. 拍照
launchCamera({
  mediaType: 'photo',
  cameraType: 'back',
}).then((result) => {
 const file = result.assets[0];
 // 2. 创建消息实例，接口返回的实例可以上屏
 let message = chat.createImageMessage({
    to: 'user1',
    conversationType: TencentCloudChat.TYPES.CONV_C2C,
    payload: { file: file },
    // React Native 不支持上传进度回调
    // onProgress: function(event) { console.log('file uploading:', event) }
  });
  // 3. 发送图片
  let promise = chat.sendMessage(message);
  promise.then(function(imResponse) {
    // 发送成功
    console.log(imResponse);
  }).catch(function(imError) {
    // 发送失败
    console.warn('sendMessage error:', imError);
  });
});

npm install react-native-audio-recorder-player --save

chat.createAudioMessage(options);

import AudioRecorderPlayer, {AVEncodingOption} from 'react-native-audio-recorder-player';
 
// 记录录音时长，单位: ms
let duration = 0;
// 记录录音文件路径
let uri = '';

// 1. 开始录音
const onStartRecord = async () => {
  await audioRecorderPlayer.startRecorder('test.aac',{
    VFormatIDKeyIOS: AVEncodingOption.aac,
  });
  audioRecorderPlayer.addRecordBackListener((e: any) => {
    duration = e.currentPosition;
  });
};
// 2. 结束录音
const onStopRecord = async () => {
  uri = await audioRecorderPlayer.stopRecorder();
  audioRecorderPlayer.removeRecordBackListener();
};
// 3. 发送语音
const file = {
  uri: uri,
  duration: duration,
};
let message = chat.createAudioMessage({
  to: 'user1',
  conversationType: 'C2C',
  payload: {
    file: file,
  },
  // React Native 不支持上传进度回调
  // onProgress: function(event) { console.log('file uploading:', event) }
});
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

npm install react-native-image-picker --save

chat.createVideoMessage(options);

import {launchImageLibrary} from 'react-native-image-picker';
// 1. 选择视频
launchImageLibrary({
  mediaType: 'video',
  selectionLimit: 1,
}).then((result) => {
 const file = result.assets[0];
 // 2. 创建消息实例，接口返回的实例可以上屏
 let message = chat.createVideoMessage({
    to: 'user1',
    conversationType: TencentCloudChat.TYPES.CONV_C2C,
    payload: { file: file },
    // React Native 不支持上传进度回调
    // onProgress: function(event) { console.log('file uploading:', event) }
  });
  // 3. 发送视频
  let promise = chat.sendMessage(message);
  promise.then(function(imResponse) {
    // 发送成功
    console.log(imResponse);
  }).catch(function(imError) {
    // 发送失败
    console.warn('sendMessage error:', imError);
  });
});

import {launchCamera} from 'react-native-image-picker';
// 1. 拍摄视频
launchCamera({
  mediaType: 'video',
  cameraType: 'back',
}).then((result) => {
 const file = result.assets[0];
 // 2. 创建消息实例，接口返回的实例可以上屏
 let message = chat.createVideoMessage({
    to: 'user1',
    conversationType: TencentCloudChat.TYPES.CONV_C2C,
    payload: { file: file },
    // React Native 不支持上传进度回调
    // onProgress: function(event) { console.log('file uploading:', event) }
  });
  // 3. 发送视频
  let promise = chat.sendMessage(message);
  promise.then(function(imResponse) {
    // 发送成功
    console.log(imResponse);
  }).catch(function(imError) {
    // 发送失败
    console.warn('sendMessage error:', imError);
  });
});

chat.createCustomMessage(options);

// 示例：利用自定义消息实现投骰子功能
// 1. 定义随机函数
function random(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min);
}
// 2. 创建消息实例，接口返回的实例可以上屏
let message = chat.createCustomMessage({
  to: 'user1',
  conversationType: TencentCloudChat.TYPES.CONV_C2C,
  // 消息优先级，用于群聊
  // priority: TencentCloudChat.TYPES.MSG_PRIORITY_HIGH,
  payload: {
    data: 'dice', // 用于标识该消息是骰子类型消息
    description: String(random(1,6)), // 获取骰子点数
    extension: ''
  }
});
// 3. 发送消息
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

chat.createFaceMessage(options);

// 发送表情消息，Web端与小程序端相同。
// 1. 创建消息实例，接口返回的实例可以上屏
let message = chat.createFaceMessage({
  to: 'user1',
  conversationType: TencentCloudChat.TYPES.CONV_C2C,
  // 消息优先级，用于群聊
  // priority: TencentCloudChat.TYPES.MSG_PRIORITY_NORMAL,
  payload: {
    index: 1, // Number 表情索引，用户自定义
    data: 'tt00' // String 额外数据
  },
  // 消息自定义数据（云端保存，会发送到对端，程序卸载重装后还能拉取到）
  // cloudCustomData: 'your cloud custom data'
});
// 2. 发送消息
let promise = chat.sendMessage(message);
promise.then(function(imResponse) {
  // 发送成功
  console.log(imResponse);
}).catch(function(imError) {
  // 发送失败
  console.warn('sendMessage error:', imError);
});

npm install react-native-document-picker --save

chat.createFileMessage(options);

import DocumentPicker from 'react-native-document-picker';
 
// 1. 选择文件
DocumentPicker.pick({
  type: [DocumentPicker.types.allFiles],
}).then((result) => {
 const file = result[0];
 // 2. 创建消息实例，接口返回的实例可以上屏
 let message = chat.createFileMessage({
    to: 'user1',
    conversationType: TencentCloudChat.TYPES.CONV_C2C,
    payload: { file: file },
    // React Native 不支持上传进度回调
    // onProgress: function(event) { console.log('file uploading:', event) }
  });
  // 3. 发送文件
  let promise = chat.sendMessage(message);
  promise.then(function(imResponse) {
    // 发送成功
    console.log(imResponse);
  }).catch(function(imError) {
    // 发送失败
    console.warn('sendMessage error:', imError);
  });
});