1.在gradle.properties中添加代码

IS_DEBUG=false

2.在根目录app module下build.gradle文件中添加代码

  defaultConfig {
      //是否debug
        buildConfigField "boolean", "IS_DEBUG", IS_DEBUG
  }
 signingConfigs {
        config {
            //加载资源
            Properties properties = new Properties()
            InputStream inputStream =         
            project.rootProject.file('local.properties').newDataInputStream()
            properties.load(inputStream)

            //读取文件
            def keyStoreFileDir = properties.getProperty('key.file')
            storeFile file(keyStoreFileDir)

            //读取字段
            def key_keyAlias = properties.getProperty('keyAlias')
            def key_keyPassword = properties.getProperty('keyPassword')
            def key_storePassword = properties.getProperty('storePassword')

            storePassword key_storePassword
            keyAlias key_keyAlias
            keyPassword key_keyPassword

        }
      //开启v1和v2签名
        release {
            v1SigningEnabled true
            v2SigningEnabled true
        }
    }
buildTypes {
        debug {
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.config
            zipAlignEnabled false
            //启动资源压缩
            shrinkResources false
            //混淆
            minifyEnabled false
        }
        release {
            minifyEnabled false
            signingConfig signingConfigs.config
            zipAlignEnabled false
            //启动资源压缩
            shrinkResources false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
 applicationVariants.all { variant ->
        def type = variant.buildType.name
        def buildName
        if (IS_DEBUG.toBoolean()) {
            buildName = "APP名字"
        } else {
            buildName = "APP名字"
        }
        variant.outputs.all {
            def df = new SimpleDateFormat("YYYY-MM-dd-HH-mm")
            def createTime = df.format(new Date())
            if (type.toString() == 'debug') {
                outputFileName = 'app-debug.apk'
            } else {
                def releaseApkName = buildName + "_" + versionName + "_" + createTime + '_' + type + '.apk'
                outputFileName = releaseApkName
            }

        }
    }

3.在根目录下local.properties中配置apk文件签名信息

key.file=D\:\\CompanyAndroidProject\\xxx\\xxx\\xxx
keyAlias=xx  #别名
keyPassword=xxxxxx #别名密码
storePassword=xxxxxx #打包密码