For example I have this kotlin code in editor:
...
val field == MySocket.ParamVer
...
Then when I type another dot after MySocket (result is "MySocket..ParamVer") Android Studio dont't show list of fields and methods of the class MySocket as I expected.
I have to firstly type space after MySocket (result in "MySocket .ParamVer") and after then type dot letter (result in "MySocket. .ParamVer") - only then Android Studio show list of fields and methods.
But when I am editing java source codes, when I press dot (in "MySocket.ParamVer" after word "MySocket") then list of fields and methods is immediatelly showed.
Exist any settings in Android Studio which enables the same behavior for editing kotlin source codes which is for java source codes? Or is it problem Kotlin plugin? Or where can I report this problem?
I think the setting you want to add is in : File -> Settings -> Editor -> General -> Code Completion -> "Insert selected suggestion by pressing space, dot, or other context-dependent keys" If this isn't the behavior you want you'll need to clarify a bit more what you need
Edit: Ctrl + Space will open the auto-completion menu
Related
If I use Xcode or visual studio all I have to do is hover my mouse (Or alt + hover) to get more information about what the variable is returning or expecting. How can I do the same thing in android studio?
Do I have something toggled off or does android studio not support something like that?
It's ctrl + shift + p. You can customize it in File -> Settings -> Keymap -> View -> Expression Type.
One way I've found is simply placing the caret on the variable, and pressing F1. (Works with Flutter).
Alternatively, you can go to Settings->Editor->Code Editing and turn on Show quick documentation on mouse move.
In newer versions of android studio it is "Ctrl + Hover"
EDIT
On variable declaration line using "Ctrl + Hover" will show "Usages of variable".
On later usage of the variable it will show you its correct data type.
Just trying to use tab-indentation on Android Studio 2.2.2
I followed the instructions I found on this thread:
Android Studio "This file is indented with tabs instead of 4 spaces"
But these instructions work only for new documents I create after setting that configuration but for previously created documents the space-indentation persists.
How can I configure all the files on my project to tab-indentation? for files before and after the tab-indentation configuration on the link above?
After changing the settings you have to reformat your codes, you can do this one by one by opening the file and pressing (Command + Option + L) shortcut or right click on your src folder and selecting Reformat Code option:
You can check the result by selecting View -> Active Editor -> Show Whitespaces from the menu:
which would be something like this:
Is it possible to enable autocompletion of the selected suggestion when entering special characters like in Visual Studio?
For example:
When typing 'MenuI' Android Studio suggests 'MenuInflater' that I can autocomplete by hitting TAB after which I type SPACE to separate my variable name.
In Visual Studio I can type SPACE directly (instead of TAB) to get the autocompletion plus my space character. This works for other special characters like period, brackets and so on, too.
Yes, I have also faced the same issue in Android studio. And finally I found it here.
Open the Android Studio settings go to Editor --> General --> Code Completion
and check the option "Insert selected variant by typing dot, space, etc."
And uncheck the options "Basic completion (Ctrl+Space)" and "Smart Type Completion (Ctrl+Shift+Space)"
Check this Android studio settings image
Well, this is implemented, slightly.
If you have MenuInflater and type in MenuI, and then CTRL+SPACE, which means you tell the IDE that you want to use the autocomplete dropdown, and then press space, it works as you wish.
So, I could type in MenuIn, then I could either press the down key, or use CTRL+SPACE ("MenuInflater" Should now be highlighted in blue:
), and then press space, and it'll work as you wish.
I suck at explaining, so if you don't get it, I'll try more.
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.
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!
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
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.
#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
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.
In Android Studio:
File->Setting->
Editor->code Style->java->Wrapping and braces(tab:right side)->keep when reformatting->Line break(make unchecked)
You can change the max column width from:
File > Settings > Editor > Code Style > Right Margin (columns)
Android Studio 3.5:
Mac -
Android Studio > Preferences > Editor > CodeStyle > HardWrap at: ____
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
My Environment：
Ubuntu 18.04
AndroidStudio 3.3.2
My operate：
File -> Settings -> Editor -> Code Style
Scheme -> select Project
Hard wrap at '120'
Apply
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.
For dart
settings => code style => Dart => Line length
In settings/code style/kotlin/wrapping and braces replace the "do not wrap" values with "wrap if long"
You can change the Hard wrap at param
I don't know what the exact name is for s feature like this, but I will just describe it.
I am using android studio and I added some java classes from a different project. Now it says
"missing package statement: yada yada". But there is not option in the error popup to just automatically add the missing package statement. I know it seems lazy to not type it, but I like to do things quickly.
When there is an error like this, is there a way for android studio to automatically added the needed lines of code like eclipse would?
This is a common frustration. While not a perfect solution, I found https://stackoverflow.com/a/16616085/967131 to work for me.
For Windows/Linux, you can go to File -> Settings -> Editor -> General
-> Auto Import -> Java and make the following changes:
change "Insert imports on paste" dropdown value to "All"
check "Add unambiguous imports on the fly" option
On a Mac, do the same thing in Android Studio -> Preferences
That way, as you type, or when you copy and paste, many imports will be added automatically. Those that aren't are ambiguous; put the cursor on the class, press alt+enter and select which version of the class you meant.
For Windows/Linux, you can go to File -> Settings -> Editor -> General -> Auto Import -> Java and make the following changes:
change "Insert imports on paste" dropdown value to "All"
check "Add unambiguous imports on the fly" option
On a Mac, do the same thing in Android Studio -> Preferences