react native安卓多渠道包

环境react native 0.63

1.修改AndroidManifest文件
加入以下代码

<meta-data android:value="${UMENG_CHANNEL_VALUE}" android:name="UMENG_CHANNEL"/>

2.修改app.build文件
打包apk命名为app+渠道名+日期+版本号

android {
defaultConfig {
    
        flavorDimensions "default"
    }

 productFlavors {
        dev{
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "dev"]
        }
        huawei {
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "huawei"]
        }
        oppo {
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "oppo"]
        }
        xiaomi {
            manifestPlaceholders = [UMENG_CHANNEL_VALUE: "xiaomi"]
        }
    }

    // applicationVariants are e.g. debug, release
    applicationVariants.all { variant ->
        variant.outputs.each { output ->
            // For each separate APK per architecture, set a unique version code as described here:
            // https://developer.android.com/studio/build/configure-apk-splits.html
            def versionCodes = ["armeabi-v7a": 1, "x86": 2, "arm64-v8a": 3, "x86_64": 4]
            def abi = output.getFilter(OutputFile.ABI)
            if (abi != null) {  // null for the universal-debug, universal-release variants
                output.versionCodeOverride =
                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
            }
            if(variant.buildType.name.equals('release')){
                def date = new Date().format("yyyyMMdd" , TimeZone.getTimeZone("GMT+08"))
                def fileName = "app_${variant.productFlavors[0].name}_${date}_${versionName}.apk"
                output.outputFileName = fileName
            }

        }
    }  
}

3.react native 中获取渠道名

//俩种方法   
第一种使用友盟的AnalyticsConfig.getChannel()方法
@ReactMethod
    public void getChannel(final Callback successCallback){
        String channelName = AnalyticsConfig.getChannel(getReactApplicationContext());
        successCallback.invoke(channelName);
    }

//第二种
@ReactMethod
    public void getAppMetaData(String key, final Promise promise) {
        String resultData = null;
        if (getReactApplicationContext() == null || TextUtils.isEmpty(key)) {
            resultData = null;
        }
        try {
            PackageManager packageManager = getReactApplicationContext().getPackageManager();
            if (packageManager != null) {
                ApplicationInfo applicationInfo = packageManager.getApplicationInfo(getReactApplicationContext().getPackageName(), PackageManager.GET_META_DATA);
                if (applicationInfo != null) {
                    if (applicationInfo.metaData != null) {
                        resultData = applicationInfo.metaData.get(key).toString();
                    }
                }
            }
            promise.resolve(resultData);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
            promise.reject(e);
        }
    }
//js端封装
var { NativeModules } = require('react-native');
const UMShareModule  = NativeModules.UMShareModule;
class ShareUtilClass {
   getAppMetaData(key){
        return  UMShareModule.getAppMetaData(key)
    }
}
let shareUtil = new ShareUtilClass()
export default shareUtil
//调用
shareUtil.getAppMetaData('UMENG_CHANNEL').then(res=>{
            console.log('UMENG_CHANNEL',res)
     
        })

4.调试
加入多渠道包后运行react-native run-android会报错
Task 'installDebug' not found in project ':app'. Some candidates are: 'installDevDebug'.
此时要运行react-native run-android --variant devdebug
为了方便使用，在package.json中修改

"scripts": {
    "android": "react-native run-android --variant devdebug"
}

然后在终端运行yarn android即可

5.打包
Android studio 右侧栏gradle,找到app->build->assembleRelease
就会生成所有的渠道包

image.png
如果出现下面报错情况
image.png
解决方法如下：
https://stackoverflow.com/questions/59044161/react-native-expiring-daemon-because-jvm-heap-space-is-exhausted

1、gradle.properties文件加入
org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
2、app/build.gradle加入
android {
  dexOptions {
    javaMaxHeapSize "4g"
  }
}