Android studio原生多渠道打包

最近用到多渠道打包，记一下android studio 原生打包配置（Android studio 版本4.2.1）
1：配置清单文件，在application 中配置meta-data，和Activity平级，如下图

   <!--多渠道打包用-->
        <meta-data
            android:name="CHANNEL"
            android:value="${CHANNEL_VALUE}" />

2：在app build.gradle中android节点里配置productFlavors闭包，具体如下图

    productFlavors {
        huawei {
            manifestPlaceholders = [CHANNEL_VALUE: "51"]
        }
        xiaomi {
            manifestPlaceholders = [CHANNEL_VALUE: "52"]
        }
        oppo {
            manifestPlaceholders = [CHANNEL_VALUE: "53"]
        }
        yingyongbao {
            manifestPlaceholders = [CHANNEL_VALUE: "54"]
        }
        wandoujia {
            manifestPlaceholders = [CHANNEL_VALUE: "55"]
        }
        vivo {
            manifestPlaceholders = [CHANNEL_VALUE: "56"]
        }
    }

3：配置：flavorDimensions

  flavorDimensions "versionCode"

4：配置打包输出

 //自动打包配置
            applicationVariants.all { variant ->
                variant.outputs.all {
                    def fileName = "demo_${variant.productFlavors[0].name}_${defaultConfig.versionName}.apk"
                    outputFileName = fileName
                }
            }

5：使用相关配置，请求接口的时候当作参数传递给服务器，用来统计渠道来源

    private String getChannel(Context context)  {
        ApplicationInfo appInfo = null;
        try {
            appInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(), PackageManager.GET_META_DATA);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        int msg = appInfo.metaData.getInt("CHANNEL",0);

        return String.valueOf(msg);
    }

注意：我配置的这个参数是int类型的，所以用appInfo.metaData.getInt(“CHANNEL”,0)获取，具体看你配置的数据类型是什么就用打点调用相关参数就行，key是清单文件配置的，打包的话看你自己需求，打那个选取那个就行

完整 build.gradle配置如下

plugins {
    id 'com.android.application'
}

android {

    compileSdkVersion 30

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion 21
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        flavorDimensions "versionCode"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

            //自动打包配置
            applicationVariants.all { variant ->
                variant.outputs.all {
                    def fileName = "demo_${variant.productFlavors[0].name}_${defaultConfig.versionName}.apk"
                    outputFileName = fileName
                }
            }
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    productFlavors {
        huawei {
            manifestPlaceholders = [CHANNEL_VALUE: "51"]
        }
        xiaomi {
            manifestPlaceholders = [CHANNEL_VALUE: "52"]
        }
        oppo {
            manifestPlaceholders = [CHANNEL_VALUE: "53"]
        }
        yingyongbao {
            manifestPlaceholders = [CHANNEL_VALUE: "54"]
        }
        wandoujia {
            manifestPlaceholders = [CHANNEL_VALUE: "55"]
        }
        vivo {
            manifestPlaceholders = [CHANNEL_VALUE: "56"]
        }
    }

}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'com.google.android.material:material:1.2.1'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.1'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

    implementation 'com.github.CymChad:BaseRecyclerViewAdapterHelper:3.0.4'
}

结束！