react-native codePush (ios) 热更新

1.全局安装脚手架（code-push-cli）如果已经安装过，不需要重复安装

1.npm install -g code-push-cli
2.code-push -v 查看版本

2. 创建一个code-push 账号

code-push register

3.注册完成后 记住页面显示的key 复制此key到终端里面完成注册

4. 创建一个名称为 rn6 的项目

code-push app add rn6 ios react-native
创建之后会返回一个key（正式签名的key）

到 https://appcenter.ms/apps (可以查看)

5 cd 到 rn6 添加依赖

yarn add react-native-code-push

6.like到项目（增加原生项目的依赖）

react-native link react-native-code-push	
这里需要第4步的key

7.在 App.js 中加入热更新代码

import React, { Component } from ‘react’;
import {
AppRegistry,
Dimensions,
Image,
StyleSheet,
Text,
TouchableOpacity,
View,
} from ‘react-native’;

import CodePush from "react-native-code-push";

class App extends Component<{}> {
  constructor() {
    super();
    this.state = { restartAllowed: true };
  }

  codePushStatusDidChange(syncStatus) {
    switch(syncStatus) {
      case CodePush.SyncStatus.CHECKING_FOR_UPDATE:
        this.setState({ syncMessage: "Checking for update." });
        break;
      case CodePush.SyncStatus.DOWNLOADING_PACKAGE:
        this.setState({ syncMessage: "Downloading package." });
        break;
      case CodePush.SyncStatus.AWAITING_USER_ACTION:
        this.setState({ syncMessage: "Awaiting user action." });
        break;
      case CodePush.SyncStatus.INSTALLING_UPDATE:
        this.setState({ syncMessage: "Installing update." });
        break;
      case CodePush.SyncStatus.UP_TO_DATE:
        this.setState({ syncMessage: "App up to date.", progress: false });
        break;
      case CodePush.SyncStatus.UPDATE_IGNORED:
        this.setState({ syncMessage: "Update cancelled by user.", progress: false });
        break;
      case CodePush.SyncStatus.UPDATE_INSTALLED:
        this.setState({ syncMessage: "Update installed and will be applied on restart.", progress: false });
        break;
      case CodePush.SyncStatus.UNKNOWN_ERROR:
        this.setState({ syncMessage: "An unknown error occurred.", progress: false });
        break;
    }
  }

  codePushDownloadDidProgress(progress) {
    this.setState({ progress });
  }

  toggleAllowRestart() {
    this.state.restartAllowed
      ? CodePush.disallowRestart()
      : CodePush.allowRestart();

    this.setState({ restartAllowed: !this.state.restartAllowed });
  }

  getUpdateMetadata() {
    CodePush.getUpdateMetadata(CodePush.UpdateState.RUNNING)
      .then((metadata: LocalPackage) => {
        this.setState({ syncMessage: metadata ? JSON.stringify(metadata) : "Running binary version", progress: false });
      }, (error: any) => {
        this.setState({ syncMessage: "Error: " + error, progress: false });
      });
  }

  /** Update is downloaded silently, and applied on restart (recommended) */
  sync() {
    CodePush.sync(
      {},
      this.codePushStatusDidChange.bind(this),
      this.codePushDownloadDidProgress.bind(this)
    );
  }

  /** Update pops a confirmation dialog, and then immediately reboots the app */
  syncImmediate() {
    CodePush.sync(
      { installMode: CodePush.InstallMode.IMMEDIATE, updateDialog: true },
      this.codePushStatusDidChange.bind(this),
      this.codePushDownloadDidProgress.bind(this)
    );
  }

  render() {
    let progressView;

    if (this.state.progress) {
      progressView = (
        {this.state.progress.receivedBytes} of {this.state.progress.totalBytes} bytes received
      );
    }

    return (
      
        1.0.0
        
          Welcome to CodePush!
        
        
          Press for background sync
        
        
          Press for dialog-driven sync
        
        {progressView}
        {/*  */}
        
          Restart { this.state.restartAllowed ? "allowed" : "forbidden"}
        
        
          Press for Update Metadata
        
        {this.state.syncMessage || ""}
      
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: "center",
    backgroundColor: "#F5FCFF",
    paddingTop: 50
  },
  image: {
    margin: 30,
    width: Dimensions.get("window").width - 100,
    height: 365 * (Dimensions.get("window").width - 100) / 651,
  },
  messages: {
    marginTop: 30,
    textAlign: "center",
  },
  restartToggleButton: {
    color: "blue",
    fontSize: 17
  },
  syncButton: {
    color: "green",
    fontSize: 17
  },
  welcome: {
    fontSize: 20,
    textAlign: "center",
    margin: 20
  },
});

/**
 * Configured with a MANUAL check frequency for easy testing. For production apps, it is recommended to configure a
 * different check frequency, such as ON_APP_START, for a 'hands-off' approach where CodePush.sync() does not
 * need to be explicitly called. All options of CodePush.sync() are also available in this decorator.
 */
let codePushOptions = { checkFrequency: CodePush.CheckFrequency.MANUAL };

App = CodePush(codePushOptions)(App);

export default App;

8.打包-安装程序到手机

详见ios打包步骤

9热更新测试 cd 到 rn6 下(更改页面内容进行测试)

code-push release-react rn6 ios --t 1.0.0 --m true --d Production