AndroidStudio kotlin配置

Posted 2020-09-20 蹭饭熊

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‘

    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