build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
  repositories {
    maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
    maven {url 'http://maven.aliyun.com/nexus/content/repositories/google'}
    jcenter()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.1.1'
  }
}

allprojects {
  repositories {
    maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
    maven {url 'http://maven.aliyun.com/nexus/content/repositories/google'}
    jcenter()
  }
  // Is Release Build?
  version = getProperty('VERSION_NAME')

  ext {
    isReleaseVersion = has("release")
    versionCodeInt = getProperty('VERSION_CODE').toInteger()
    supportLibraryVersion = '27.1.1'
    buildToolsVersion = '27.0.3'
    compileSdkVersion = 27
    minSdkVersion = 14
    targetSdkVersion = 27
  }
}

task wrapper(type: Wrapper) {
  gradleVersion = '3.5'
  distributionUrl = "https://services.gradle.org/distributions/gradle-$gradleVersion-bin.zip"
}