AndroidStudio kotlin配置详细介绍

androidstudio kotlin配置

安装插件

file -> settings -> plugins -> browse repositories -> 搜索 kotlin

gradle添加依赖

module的build.gradle

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
 
android {
  compilesdkversion 25
  buildtoolsversion "25.0.2"
  defaultconfig {
    applicationid "com.lxs.kotlinconfig"
    minsdkversion 15
    targetsdkversion 25
    versioncode 1
    versionname "1.0"
    testinstrumentationrunner "android.support.test.runner.androidjunitrunner"
  }
  buildtypes {
    release {
      minifyenabled false
      proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'
    }
  }
}
 
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'
  })
  compile 'com.android.support:appcompat-v7:25.3.1'
  compile 'com.android.support.constraint:constraint-layout:1.0.2'
  testcompile 'junit:junit:4.12'<br>
  compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
  compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
}
 
repositories {
  maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
}

project的build.gradle

buildscript {
  ext.kotlin_version = '1.1.2-4'
  repositories {
    maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:2.3.2'
    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 {
    maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
  }
}
 
task clean(type: delete) {
  delete rootproject.builddir
}
 

kotlin.incremental=true增量编译的机制，可以加快编译速度 项目根目录的gradle.properties里配置

把java代码转换成kotlin代码

code -> convert java file to kotlin file

快捷键 ctrl+alt+shift+k

或者ctrl+shift+a　　输入convert java file to kotlin file

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