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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