在主模块的 build.gradle 文件中，您可以拥有多种构建类型以及调试类型.

Inside you main module's build.gradle file you can have multiple build types along with your debug one.

您可以使用

buildTypes {

     release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        zipAlignEnabled true
    }
}

注意:旧版本使用zipAlign，而不是zipAlignEnabled

无论您是否定义，始终为调试和发布构建类型创建默认的 gradle 任务.调试用于调试目的和签名应用程序发布(构建 >> 生成签名 Apk).您必须为发布版本定义签名配置.

Default gradle tasks always created for debug and release buildTypes whether you define or not. Debug is for debugging purpose and Release for Signed Application (Build >> Generate Signed Apk). You must define your signingConfig for release builds.

检查下面提到的链接中的构建类型部分，了解您可以在构建类型中使用的其他属性

Check Build Types section in below mentioned link for other properties that you can use in your buildTypes

http://tools.android.com/tech-文档/新构建系统/用户指南