前置き ただのメモ。 基本は、Kotlin のサイトの通り Android Studio pluginをinstall Android Studio > Preferences > Plugins > Browse Repository 下記2つをinstall Kotlin Kotlin Extensions for Android Android Studioは一度リスタートする build.gradleの編集 buildscriptにclasspathの追加 buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:1.2.3' classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:0.12.61
![AndroidプロジェクトのKotlin化 - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/890a69437b71178a91738b88ece25d75414c097a/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-9f5428127621718a910c8b63951390ad.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTkxNiZoPTMzNiZ0eHQ9QW5kcm9pZCVFMyU4MyU5NyVFMyU4MyVBRCVFMyU4MiVCOCVFMyU4MiVBNyVFMyU4MiVBRiVFMyU4MyU4OCVFMyU4MSVBRUtvdGxpbiVFNSU4QyU5NiZ0eHQtY29sb3I9JTIzMjEyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTU2JnR4dC1jbGlwPWVsbGlwc2lzJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9ZWI5ODg2YmY2ZjU4Y2UwYTU4OTE3ZGFiYTk4NTkzNWY%26mark-x%3D142%26mark-y%3D112%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTYxNiZ0eHQ9JTQwbWF0dGFrJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz03YzQyOTdiMzE4OWE5YWUzOTE4Zjk2ODhjMDc3OTEzMg%26blend-x%3D142%26blend-y%3D491%26blend-mode%3Dnormal%26s%3De102ae7a4ec458fcb82efd5ea934d617)