//时间
def releaseTime() {
  return new Date().format("yyyyMMdd", TimeZone.getTimeZone("UTC"))
}

//版本号
def getVersionName(){
  return "2.0"
}

//名称
  applicationVariants.all { variant ->
    variant.outputs.each { output ->
      def outputFile = output.outputFile
      def fileName
      if (outputFile != null && outputFile.name.endsWith('.apk')) {
        if (variant.buildType.name.equals('release')) {
          variant.mergedFlavor.versionName = getVersionName()
          fileName = "XYZ_${variant.mergedFlavor.versionName}_release.apk"
        } else if (variant.buildType.name.equals('debug')) {
          variant.mergedFlavor.versionName = getVersionName()+"."+releaseTime()
          fileName = "XYZ_${variant.mergedFlavor.versionName}_debug.apk"
        }
        output.outputFile = new File(outputFile.parent, fileName)
      }
    }
  }

apply plugin: 'com.android.application'
//定义时间
def releaseTime() {
  return new Date().format("yyyyMMdd", TimeZone.getTimeZone("UTC"))
}
//设置发布时的版本号
def getVersionName(){
  return "2.0"
}
android {
  compileSdkVersion 26
  buildToolsVersion "26.0.0"
  defaultConfig {
    applicationId "***"
    minSdkVersion 14
    targetSdkVersion 23
    versionCode 1
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
  }
  buildTypes {
    release {
      buildConfigField("boolean","API_DEBUG","false")
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
    debug {
      buildConfigField("boolean","API_DEBUG","true")
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
  }
  //配置打包名称
  applicationVariants.all { variant ->
    variant.outputs.each { output ->
      def outputFile = output.outputFile
      def fileName
      if (outputFile != null && outputFile.name.endsWith('.apk')) {
        if (variant.buildType.name.equals('release')) {
          variant.mergedFlavor.versionName = getVersionName()
          fileName = "XYZ_${variant.mergedFlavor.versionName}_release.apk"
        } else if (variant.buildType.name.equals('debug')) {
          variant.mergedFlavor.versionName = getVersionName()+"."+releaseTime()
          fileName = "XYZ_${variant.mergedFlavor.versionName}_debug.apk"
        }
        output.outputFile = new File(outputFile.parent, fileName)
      }
    }
  }
}
dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
  })
}