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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