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IDE setup

To configure IntelliJ/Android Studio according to this style guide, you can either import the settings file in Android Studio settings folder or follow the steps:

Applying Kotlin style guide

Go to Settings | Editor | Code Style | Kotlin
Click Set from… link in the upper right corner
Select Predefined style | Kotlin style guide from the menu. ^[link]

Setup hard wrap

Still in Settings | Editor | Code Style | Kotlin
Click Wrapping and Braces tab
Set Hard wrap at field to 120 ^[link]

Setup blank lines

Still in Settings | Editor | Code Style | Kotlin
Click Blank Lines tab
In setction Keep Maximum Blank lines
- Set In declarations: to 1
- Set In code: to 1
- Set Before '}': to 1
In setction Minimun Blank lines
- Set After class header: to 0
- Set Arround 'when' branches with {} to 0
- Set Before declaration with comment or annotation to 1 ^[link]

Setup imports

Still in Settings | Editor | Code Style | Kotlin
Click Imports tab
In setction Top-level name import
- Select entry Use single line imports
In section Java Statics and Enum Members
- Select entry Use single line imports
In section Packages to Use Import with '*'
- Remove packages clicking the - button ^[link]

Setup trailing commas

Still in Settings | Editor | Code Style | Kotlin
Click Other tab
Select entry `Use trailing commas`` ^[link]

Set empty line at the end of a file

Go to Settings | Editor | General
Scroll to the Save Files section
Check Ensure an empty line at the end of a file on Save ^[link]