Android Studio 3.0 Gradle 配置变更

flavorDimensions "default"
productFlavors {
  xxxx { dimension "default" }
}
productFlavors.all {
  flavor -> flavor.manifestPlaceholders = [CHANNEL_VALUE: name]
}

android.applicationVariants.all { variant ->
  if (variant.buildType.name == 'release') {
    variant.outputs.all { output ->
      def outputFile = output.outputFile
      if (outputFile != null && outputFile.name.endsWith('.apk')) {
        def fileName = "${variant.flavorName}.apk"
        outputFileName = new File("../../../apk", fileName)
      }
    }
  }
}