一、配置Project的build.gradle

buildscript {
    ext.kotlin_version = '1.1.51'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

二、配置app的build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'

    defaultConfig {
        applicationId "**************************"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0.17.09041"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    ......
    dataBinding {
        enabled = true
    }
}

apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'

kapt {
    generateStubs = true
}
dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    kapt 'com.android.databinding:compiler:3.0.0'
    ......
}