How to add a Kotlin class in an Android Studio project?

Question

I have been working with Android Studio for a while. Recently I have heard about kotlin programming language and I wanted to try to include a class in kotlin language to my project.

There is the problem that whenevr I want to create a new Activity for example, the .java class is auto-generated. Also I see no way to cretae a .kt (kotlin) file manually.

So does anyone know how to setup a .kt file in Android Studio, so that I am able to fill it with code in kotlin language?

Right Click on java project directory -> new -> select "Kotlin File/Class". — pRaNaY
– pRaNaY, Commented Aug 12, 2017 at 9:40
Putting this here for future devs... After I created a brand-new project (in Android Studio 3.1.3) that includes Kotlin support, I did not have the File -> New -> Kotlin File/Class until AFTER I did a Gradle sync. — Nicholas Miller
– Nicholas Miller, Commented Jun 30, 2018 at 21:35

Ketan Mate · Accepted Answer · 2017-08-13 12:16:14Z

5

First, install Kotlin plugin in Android Studio. Restart Android Studio.
Now create a new project with no activity.
Then navigate to src>main>java><your_package_name>.
Right Click on <your_package_name>, select New>Kotlin Activity and go ahead with configuration.
Now naviagte to src>main>java><your_package_name>/<activity_name>.kt and open it.
After opening it, you will see Kotlin not configured message.
Just click configure action and run your project. That's it!

answered Aug 13, 2017 at 12:16

Ketan Mate

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Kharda · Accepted Answer · 2017-08-12 09:31:46Z

0

One way to do it is by converting Java file to Kotlin file. Open the java class, and from menu bar choose Code -> Convert Java File to Kotlin File.

answered Aug 12, 2017 at 9:31

Kharda

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Amr Elgarhy · Accepted Answer · 2017-09-02 02:46:40Z

0

Get Android Studio 3 preview and when you start a new project click the option to add Kotlin support... Once in your project you'll see options to create Kotlin class when you right click

edited Sep 2, 2017 at 2:46

Amr Elgarhy

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answered Aug 14, 2017 at 5:51

Michael

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