Download the latest version of android studio from below. https://developer.android.com/studio?hl=ja
Click start a new Android studio project and a new file will be created.
Select a view screen template. If you are not particular about it, Empty Activity is fine.
-Enter the application name in name -Specify the save destination of the file in Save location ・ Select the language you want to use in Language
Packege name and Minimum SDK are entered by default, so you don't have to mess with them.
A pop-up saying Tip of the day will appear, but let's close it with Close.
activity_main.xml MainActivity.kt (extension depends on selected language) I think the above two files have already been created. If you write the code there, you can create an application.
You can start the emulator from the horizontal triangle mark, so let's check the operation while actually moving the screen with the emulator.