A modern programming language that makes developers happier.

kotlinlang

is there any option in Android Studio from which, we can customize the default imports ,so  we don't have to add the kotlin synthetic library again and again in every activity file.

If by "default imports", you mean you want the Kotlin synthetic properties to be on par with `String` and not require an `import`, Android Studio has nothing to do with it. The `import` rules are from the Kotlin compiler.

I wanted to know that there are always by default imports in the Android studio when we create new activity. So, we don

SO, we don't have to import some libraries every time, that we will sure that we need in every file.

The contents of the activity class file that you create from the new-activity wizard come from your chosen template. AFAIK, there is no documented way to change those templates, let alone have those changes survive Studio updates.

The docs are here:
<https://www.jetbrains.com/help/idea/using-file-and-code-templates.html>

As I see, there is a default template for an Android Activity in the "other" section, but only for Java. You're welcome to submit a feature request to Google to add similar Kotlin templates: <http://issuetracker.google.com/>.

That is for an unrelated concept of "templates" that Studio inherits from IDEA. The templates associated with the new-activity and new-project wizards are separate and are not covered by that documentation. Thanks, though!