How do I remove the right hand margin line in Android Studio (Intellij)?
Easy solution to this :)
Go to File, then Other Settings, then Default Settings. Choose Code Style from the list on the Left, then General. Change the Right Margin
attribute to be 0. This will remove the line.
Hope this helps. Here's a picture:
IntelliJ IDEA 2017
I found that Android Studio 3 wasn't accepting blank or 0 value in the attribute as per in Alex's answer.
Try following steps:From menu bar, select File > Settings > Editor > General > Appearance
and uncheck the Show right margin...
checkbox.