React Native 实现热更新并自动签名打包功能

项目背景：手动link的安卓App

1.下载 react-native-code-push

npm install --save react-native-code-push

2.在android/settings.gradle文件下新增：

include ':app', ':react-native-code-push'
project(':react-native-code-push').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-code-push/android/app')

3.在android\app\src\main\java\com\app\MainApplication.java 文件中修改

...
// 1. Import the plugin class.
import com.microsoft.codepush.react.CodePush;

public class MainApplication extends Application implements ReactApplication {

  private final ReactNativeHost mReactNativeHost = new ReactNativeHost(this) {
    ...

    // 2. Override the getJSBundleFile method in order to let
    // the CodePush runtime determine where to get the JS
    // bundle location from on each app start
    @Override
    protected String getJSBundleFile() {
      return CodePush.getJSBundleFile();
    }
  //手动link需要修改的地方,自动link应该不需要改
      @Override
  protected List<ReactPackage> getPackages() {
   @SuppressWarnings("UnnecessaryLocalVariable")
   List<ReactPackage> packages = new PackageList(this).getPackages();
   // Packages that cannot be autolinked yet can be added manually here, for
   // example:
   // packages.add(new MyReactNativePackage());
   packages.add(new CodePush(getResources().getString(R.string.CodePushDeploymentKey),
     getApplicationContext(), BuildConfig.DEBUG,
     getResources().getString(R.string.reactNativeCodePush_androidServerURL)));
   return packages;
  }
  };
}

//CodePushDeploymentKey对应string.xml里面的 Deployment key的name
//reactNativeCodePush_androidServerURL对应string.xml里面热更新服务地址的name

4.string.xml的修改：首先要将你的app添加到推送中心，并获取你需要的环境分支的key

4.1.登录热更新服务器

4.2.推送中心创建项目：（针对第一次部署）

code-push app add 项目名称 android react-native

4.3 添加环境分支dev：code-push deployment add 项目名称 dev （针对第一次部署）

将项目打包至对应的环境分支，需要将环境分支对应的key和热更新地址配置到项目文件中：(strings.xml)

4.4 准备工作已经做好了，现在我们来修改string.xml文件吧

...
apply from: "../../node_modules/react-native/react.gradle"
apply from: "../../node_modules/react-native-code-push/android/codepush.gradle"
...

dependencies {
  implementation project(':react-native-code-push') //最好手动加上，否则可能会有坑
  implementation fileTree(dir: "libs", include: ["*.jar"])
  ....
}
....

5.修改android/app/build.gradle文件

 STACK TRACE AND/OR SCREENSHOTS

:app:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:6: error: package com.microsoft.codepush.react does not exist
import com.microsoft.codepush.react.CodePush;
                  ^
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:23: error: cannot find symbol
    return CodePush.getJSBundleFile();
        ^
 symbol: variable CodePush
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:35: error: cannot find symbol
      new CodePush(null, getApplicationContext(), BuildConfig.DEBUG),
        ^
 symbol: class CodePush
3 errors
:app:compileDebugJavaWithJavac FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

采坑：react-native-code-push需要手动添加依赖，否则会报错：

STACK TRACE AND/OR SCREENSHOTS
 
:app:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:6: error: package com.microsoft.codepush.react does not exist
import com.microsoft.codepush.react.CodePush;
                                   ^
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:23: error: cannot find symbol
        return CodePush.getJSBundleFile();
               ^
  symbol: variable CodePush
C:\Stock Api\stock_app\android\app\src\main\java\com\stock_app\MainApplication.java:35: error: cannot find symbol
            new CodePush(null, getApplicationContext(), BuildConfig.DEBUG),
                ^
  symbol: class CodePush
3 errors
:app:compileDebugJavaWithJavac FAILED
 
FAILURE: Build failed with an exception.
 
* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

6.采坑：手动link react-native-code-push的app，需要禁止autolink，否则会报错：

java.lang.IllegalStateException: Native module CodePush tried to override CodePushNativeModule. Check the getPackages() method in MainApplication.java, it might be that module is being created twice. If this was your intention, set canOverrideExistingModule=true

所以需要加上一个配置文件，禁止自动link

在项目根目录创建react-native.config.js文件

module.exports = {
  dependencies: {
    'react-native-code-push': {
      platforms: {
        android: null, // disable Android platform, other platforms will still autolink
      },
    },
  },
};

7.热更新配置完成，现在我们需要在项目启动的时候检测热更新，并提示

在项目入口文件App.js中：

import React,{ Component } from 'react';
import Root from './src/inner';
import configureStore from './src/inner/store';
import UpdateDialog from './src/common/components/updateDialog'
import CodePush from "react-native-code-push";

const { persistor, store } = configureStore();

class App extends Component {

 state = {

  visitDialog: false,
  current: 0,
  total: 100
 }

 componentDidMount() {
  CodePush.sync({
   //安装模式
   //ON_NEXT_RESUME 下次恢复到前台时
   //ON_NEXT_RESTART 下一次重启时
   //IMMEDIATE 马上更新
   installMode: CodePush.InstallMode.IMMEDIATE,
   //对话框
   updateDialog: {
    //是否显示更新描述
    appendReleaseDescription: true,
    //更新描述的前缀。 默认为"Description"
    descriptionPrefix: "更新内容：",
    //强制更新按钮文字，默认为continue
    mandatoryContinueButtonLabel: "立即更新",
    //强制更新时的信息. 默认为"An update is available that must be installed."
    mandatoryUpdateMessage: "必须更新后才能使用",
    //非强制更新时，按钮文字,默认为"ignore"
    optionalIgnoreButtonLabel: '稍后',
    //非强制更新时，确认按钮文字. 默认为"Install"
    optionalInstallButtonLabel: '后台更新',
    //非强制更新时，检查到更新的消息文本
    optionalUpdateMessage: '有新版本了，是否更新？',
    //Alert窗口的标题
    title: '更新提示'
   },
  },
   (status) => {
    console.log(status, 'status')
    if (status == 7) {
     this.setState({ visitDialog: true })
    }
   },
   (progress) => {
    let receivedBytes = progress.receivedBytes / 1024 / 1024;
    let totalBytes = progress.totalBytes / 1024 / 1024;
    this.setState({
     current: receivedBytes,
     total: totalBytes
    })
    if (receivedBytes === totalBytes) {
     setTimeout(() => {
      this.setState({ visitDialog: false })
     }, 1000)
    }
    console.log(progress, 'progress')
   }
  );
 }

 render() {
  console.log(this.state.visitDialog, 'visitDialog');
  return (
   <>
    <Root store={store} persistor={persistor} />
    {this.state.visitDialog && <UpdateDialog
     title={this.state.current === this.state.total ? '已完成' : '正在下载更新文件'}
     describe={this.state.current === this.state.total ? '欢迎使用' : '请耐心等待'}
     current={this.state.current} total={this.state.total}></UpdateDialog>}
   </>
  )
 }
};

let codePushOptions = {
 //设置检查更新的频率
 //ON_APP_RESUME APP恢复到前台的时候
 //ON_APP_START APP开启的时候
 //MANUAL 手动检查
 checkFrequency: CodePush.CheckFrequency.ON_APP_START
};

export default CodePush(codePushOptions)(App);

UpdateDialog ：是我自己封装的热更新下载进度条的组件，下载提示，可根据自己的心情随便写，这里我就不贴自己的代码了！（写的不好，不好意思）

现在我们热更新配置好了，打包正式的apk吧！

1. 生成签名文件：在项目根目录下运行命令：

keytool -genkey -v -keystore 我的签名-key.jks -keyalg RSA -keysize 2048 -validity 10000 -alias 我的签名

2.将生成的签名文件拷贝至目录：android/app目录下

3.配置gradle.properties

android.useAndroidX=true
android.enableJetifier=true
MYAPP_RELEASE_STORE_FILE=wms-app-key.jks //生成的签名密钥
MYAPP_RELEASE_KEY_ALIAS=ydh //别名
MYAPP_RELEASE_STORE_PASSWORD=签名时设置的密码
MYAPP_RELEASE_KEY_PASSWORD=签名时设置的密码

4.修改android/app/build.gradle

  signingConfigs {
    debug {
      ...
    }

    release {
      if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
        storeFile file(MYAPP_RELEASE_STORE_FILE)
        storePassword MYAPP_RELEASE_STORE_PASSWORD
        keyAlias MYAPP_RELEASE_KEY_ALIAS
        keyPassword MYAPP_RELEASE_KEY_PASSWORD
      }
    }
  }

5..打包(android目录下)： .\gradlew.bat assembleRelease

app打包成功，将apk拷贝到手机安装即可

6..推送代码：(需要更新时，推送代码到你想要更新的环境分支)

推送到dev环境：code-push release-react 项目名称 android -d dev

推送到production环境:-m true 代表强制更新，不加代表不强制更新

code-push release-react 项目名称 android -d Production -m true

然后重启app，就可以看到更新提示啦

总结

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