How to set max line length in Android Studio code editor?

Question

How can I set a maximum length for Android Studio's code editor, or may be set a word wrap?

In my Android Studio, no matter how long a statement I type on a single line, it never automatically goes to the next line, but rather a horizontal scroll bar appears.

When I autoformat using the Ctrl+Alt+L (reference), nothing happens.

My SO or Google search found a lot of material on this for Eclipse, but not for Android Studio.

score 70 · Answer 1 · edited Sep 30 '21 at 17:41

70

If you need not a soft wrap,
but actually, brake one long line onto several lines you need:

Go to Preferences(mac) or Settings(windows) -> Editor -> Code style -> Java/Kotlin -> Wrapping and braces (tab) -> Check "Ensure that right margin is not exceeded"

Now try to reformat your code:
press OPTION (ALT) + CMD + L on your Mac (or CTRL + ALT + L on PC)

Edit 13.02.19

As noted in comments this option seems not available in settings for Kotlin. However, there is a workaround to manually add it.
Here is what it takes to make it work:

Export the settings scheme.
Open saved xml file.
Find <codeStyleSettings language="kotlin"> tag (or create)

Add the WRAP_LONG_LINES setting manually:

<codeStyleSettings language="kotlin">
   ...
   <option name="WRAP_LONG_LINES" value="true" />
</codeStyleSettings>

Save edits and and import back the scheme.
Here you go!

edited Sep 30 '21 at 17:41

KYL3R

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answered Mar 10 '16 at 16:02

Leo DroidCoder

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I think it is "Settings", not "Preferences". Sits in the "File" menu. – Bowi Jan 25 '19 at 08:33
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It depends on whether you are on Mac or PC – Leo DroidCoder Jan 29 '19 at 15:52
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this option is not available for kotlin in andriod studio 3.2 – Vihaan Verma Feb 13 '19 at 11:01
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Created an issue about this problem in Kotlin for JetBrains https://youtrack.jetbrains.com/issue/IDEA-229595 – Konstantin Ziubin Dec 20 '19 at 11:28
@KonstantinZyubin is your feature request the same as supporting `WRAP_LONG_LINES` – dazza5000 Apr 12 '22 at 19:46

score 66 · Answer 2 · answered Dec 11 '19 at 10:14

66

MacOS:

Click on Android Studio ( left top corner )
Click Preferences
Type Code Style in search
Click on Code Style
There is a filed right to the 'Hard wrap at' - you can enter needed about of symbols you need

answered Dec 11 '19 at 10:14

Yevhen_Radchenko

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for dart you have to set the dart file line-length limit, **Preferences->Editor->Code Style->Dart->Line Length** – Shaybc Oct 18 '20 at 07:13
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any reason why at Dart it's only 80? – MwBakker Jan 05 '21 at 22:31

score 37 · Answer 3 · answered Jun 15 '15 at 17:55

In File | Settings, select "Editor", then "Code Style". There is an option "Wrap when typing reaches right margin".

Edit: Just tried it, and it doesn't seem to work. Anyway, maybe the option "Use soft wrap" in the "General" group is more what you want.

sz3nt · Answer 4 · 2022-03-18T14:05:15.633

23

With version 4.1.2 and with Dart language you need to go to "File/Settings/Editor/Code Style/Dart" and modify the "Line length" to the preferred number.

edited Mar 18 '22 at 14:05

answered Feb 18 '21 at 12:56

sz3nt

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score 19 · Answer 5 · answered Oct 21 '19 at 14:52

@Solace, actually @Fahim Faysal's answer is quite close to what you need, but since you want to solve the problem no matter how long a statement I type on a single line, it never automatically goes to the next line, 2 more steps you need to follow:
[Step 9] type the max length you prefer at `"Hard wrap at" ()
[Step 10] change "Wrap on typing" from Default: No or No to Yes

Fahim Faysal · Answer 6 · 2016-06-17T18:20:10.337

14

In Android Studio: File->Setting-> Editor->code Style->java->Wrapping and braces(tab:right side)->keep when reformatting->Line break(make unchecked)

edited Jun 17 '16 at 18:20

answered Jun 13 '16 at 07:25

Fahim Faysal

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score 8 · Answer 7 · answered Dec 26 '16 at 12:58

8

You can change the max column width from: File > Settings > Editor > Code Style > Right Margin (columns)

answered Dec 26 '16 at 12:58

CodeMonkey

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When I change the right margin, after I restart Android Studio the margin value is reseted to 100. To avoid it, I have to go to java / wrapping and braces and then change right margin to my value (for example 150) AND change Wrap on typing to NO, then APPLY... – Christian Jan 20 '18 at 18:52
THANK YOU. That's exactly what I was looking for. – clamum Nov 04 '19 at 06:23

score 6 · Answer 8 · answered Nov 30 '22 at 11:11

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For dart settings => code style => Dart => Line length

answered Nov 30 '22 at 11:11

smebes

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score 5 · Answer 9 · answered Aug 26 '19 at 17:16

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Android Studio 3.5:

Mac - Android Studio > Preferences > Editor > CodeStyle > HardWrap at: ____

answered Aug 26 '19 at 17:16

Jeff Padgett

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edmunddantes · Answer 10 · 2020-05-05T03:33:45.890

The existing answers already answer the question in straight forward way. As a different approach you could set the style guide to kotlin style guide code style. Then if you do alt + ctrl + l as you did, you'll see auto wrap as you expected.

Just open the settings, search for kotlin and look for kotlin under code style.
On the top right hand side of the settings window you'll see Set from..., click on it.
Then on predifined style > kotlin style guide

If you'd like to follow the kotlin formatting style this could reduce more effort. For more information: https://developer.android.com/kotlin/style-guide

score 4 · Answer 11 · answered Mar 20 '19 at 11:14

4

My Environment：

Ubuntu 18.04
AndroidStudio 3.3.2

My operate：

File -> Settings -> Editor -> Code Style
1. Scheme -> select Project
2. Hard wrap at '120'
3. Apply

answered Mar 20 '19 at 11:14

Tom

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score 2 · Answer 12 · answered Feb 14 '19 at 07:37

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To move the grey vertical line, that tells Android Studio where to wrap your code, go to

Settings- Editor- Code Style- Java or Kotlin- Wrapping and Braces- Hard wrap at

and enter the number of characters, where the line should be.

answered Feb 14 '19 at 07:37

Alexander Roehnisch

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score 1 · Answer 13 · answered Feb 25 '19 at 09:30

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In settings/code style/kotlin/wrapping and braces replace the "do not wrap" values with "wrap if long"

answered Feb 25 '19 at 09:30

Ghassen KEFI

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Edhar Khimich · Answer 14 · 2019-08-06T17:23:12.900

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You can change the Hard wrap at param

edited Aug 06 '19 at 17:23

answered Aug 05 '19 at 14:48

Edhar Khimich

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How to set max line length in Android Studio code editor?

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