多渠道打包

多渠道打包：
AndroidManifest.xml文件中设置：

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

在app的build中设置：单独配置渠道

    flavorDimensions "default"
    // 单独配置
    productFlavors {
        baidu {
            manifestPlaceholders = [CHANNEL_VALUE: "baidu"]
            buildConfigField "String", "CHANNEL", "\"baidu\""
        }
        c360 {
            manifestPlaceholders = [CHANNEL_VALUE: "c360"]
            buildConfigField "String", "CHANNEL", "\"360\""
        }
        web {
            manifestPlaceholders = [CHANNEL_VALUE: "web"]
            buildConfigField "String", "CHANNEL", "\"web\""
        }
    }

也可以统一配置渠道：

     //统一配置
    productFlavors {
        baidu {}
        c360 {}
        web {}
    }
    productFlavors.all {
        flavor -> flavor.manifestPlaceholders = [CHANNEL_VALUE: name]
    }

也可以添加自定义包输出路径和包名字：

    //自定义APK名称,多渠道打包
    android.applicationVariants.all { variant ->
        variant.outputs.all { output ->
            variant.productFlavors.each { flavor ->
                def project = "cpm"
                def separator = "_"
                def buildType = variant.variantData.variantConfiguration.buildType.name
                def versionName = variant.versionName
                def versionCode = variant.versionCode
                def date = new Date()
                def formattedDate = date.format('yyyyMMdd')

                def apkName = project + separator + "v" + versionName + separator + versionCode + separator + buildType + separator + flavor.name + ".apk"
                if (buildType == "release") {
                    apkName = project + separator + "v" + versionName + separator + versionCode + separator + buildType + separator + flavor.name + separator + formattedDate + ".apk"
                }

                output.outputFileName = apkName
            }
        }
    }

然后刷新左边栏的gradle任务，在:app/Tasks/build下点击assembleRelease就可以生产多个包。如果想生产单个包，可以点击对应的task名字。
demo