[Kotlin] Android Studio 使用kotlin with Databinding 基本設定

先在build.gradle做設定

因為kotlin gradle plugin版本要跟as 版本一樣,所以我們先設定兩個全域變數

ext.kotlin_version

ext.kotlin_version

• Project build.gradle

buildscript {
    ext.kotlin_version = '1.2.30'
    ext.gradle_version = '3.1.0'
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:$gradle_version"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

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

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

接著在app build.gradle也引用剛剛設定的兩個全域變數即可

• APP build.gradle

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'

    //kotlin
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
    kapt "com.android.databinding:compiler:$gradle_version"
}
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'