Android studio 自定义打包apk名

// apk name def
    android.applicationVariants.all { variant ->
        variant.outputs.each { output ->
            output.outputFile = new File(output.outputFile.parent, defaultConfig.applicationId + "-" + buildType.name + "-v" +
                    defaultConfig.versionName + "-" + defaultConfig.versionCode + ".apk" );
        }
    }

apply plugin: ‘com.android.application‘

def releaseTime() {
    return new Date().format("yyyy-MM-dd", TimeZone.getTimeZone("UTC"))
}


android {
    compileSdkVersion 23
    buildToolsVersion "23.0.1"

    defaultConfig {
        applicationId "com.djk.myapplication"
        minSdkVersion 14
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile(‘proguard-android.txt‘), ‘proguard-rules.pro‘
        }
    }

    productFlavors{
        develop{}
        xiaomi{}
        huawei{}
        anzhi{}
    }

    android.applicationVariants.all { variant ->
        variant.outputs.each { output ->
            def outputFile = output.outputFile
            if (outputFile != null && outputFile.name.endsWith(‘.apk‘)) {
                //这里修改apk文件名
                def fileName = "demo_${variant.productFlavors[0].name}-${defaultConfig.versionCode}-${defaultConfig.versionName}-${releaseTime() }.apk"
　　　　　　　　　 //def fileName = outputFile.name.replace("app", "${rootProject.ext.appName}-${releaseTime()}-${defaultConfig.versionCode}-${defaultConfig.versionName}")

                output.outputFile = new File(outputFile.parent, fileName)
            }
        }
    }

}

dependencies {
    compile fileTree(dir: ‘libs‘, include: [‘*.jar‘])
    testCompile ‘junit:junit:4.12‘
    compile ‘com.android.support:appcompat-v7:23.1.0‘
}