I think that the question is mostly asking to what key combination do you change it, and why JetBrains haven’t implemented the update to the Mac keymap by themselves.

Anyways, I’ve swapped the Ctrl+Space with Option+Space which doesn’t seem to collide with any Mac OS X system key shortcut.

Answer from Maxim Veksler on Stack Overflow
🌐
Stack Overflow
stackoverflow.com › questions › 11085913 › change-keyboard-shortcut-for-basic-code-completion-in-intellij-idea-on-mac
Change keyboard shortcut for Basic Code Completion in IntelliJ IDEA on Mac - Stack Overflow
Top answer
1 of 8
32

I think that the question is mostly asking to what key combination do you change it, and why JetBrains haven’t implemented the update to the Mac keymap by themselves.

Anyways, I’ve swapped the Ctrl+Space with Option+Space which doesn’t seem to collide with any Mac OS X system key shortcut.

2 of 8
29

You either disable/change Spotlight shortcut in the system settings or you change the Basic completion shortcut in IDEA Preferences | Keymap.

java - How do I turn on auto code completion in IntelliJ?
IntelliJ code completion: ⇥ key?
Hotkey to undo autocompletion in Intellij IDEA
IntelliJ IDEA shortcut tips
intellij idea - Is there a unified keyboard shortcut solution for IDEs, like Eclipse, IntellJ, JDeveloper... So I don't need to remember so many shortcuts?
More results from stackoverflow.com
🌐
JetBrains
jetbrains.com › guide › java › tips › completion
Code Completion - JetBrains Guide
February 17, 2023 - Smart or type-based completion ⌃⇧␣ (macOS) / Ctrl+Shift+Space (Windows/Linux) suggests the right type
Discussions
java - Easier suggestions in Intellij IDEA (no `CTRL+Space` and fuzzy search) - Stack Overflow
I've installed IDEA today, on macOS and am wondering a couple of things to adapt usability to my needs: how to always show autocompletion automatically, as a sort of continuous suggestion, rather ... More on stackoverflow.com
🌐 stackoverflow.com
IntelliJ AutoCompletion Not Working
https://intellij-support.jetbrains.com/hc/en-us/community/posts/360000116064-Autocompletion-stopped-working More on reddit.com
🌐 r/IntelliJIDEA
2
2
July 12, 2020
intellij idea - Cycle through autocomplete suggestions without arrows - Stack Overflow
In IntelliJ's settings, for Keymap → Editor Actions → Down I set a custom shortcut: Ctrl + J. This way I can cycle forward through the suggestions. Setting a shortcut for Down with Selection or Scroll Line Down in the IdeaVim-specific shortcuts did not affect the selection of autocomplete ... More on stackoverflow.com
🌐 stackoverflow.com
What are your most used shortcuts?

  • Ctrl + Click on pieces of code - go to definition/usages

  • Ctrl + Shift + Left / Right - Navigate Back, Forward

  • Ctrl + Shift + N - Search for a file

  • Ctrl + Shift + F - Search for a string in code

  • Ctrl + Shift + A - Find actions. Basically search for actions you can do (Like Ctrl+Shift+P in VSCode)

More on reddit.com
🌐 r/IntelliJIDEA
47
64
June 4, 2020
Videos
13:25
🌐 YouTube
Intellij Coding Shortcuts You Need to Know - YouTube
February 13, 2023
03:08
🌐 YouTube
IntelliJ IDEA Pro Tips: Code Completion - YouTube
June 22, 2022
03:47
🌐 YouTube
[FIXED] IntelliJ SQL AutoComplete Not Working - YouTube
November 29, 2020
07:24
🌐 YouTube
IntelliJ IDEA. Code Completion - YouTube
April 29, 2020
14:34
🌐 YouTube
Code Generation and Completion in IntelliJ IDEA - YouTube
April 30, 2019
4.35K
17:48
🌐 YouTube
Intellij IDEA Shortcuts - Part 3 - Working with Java - YouTube
December 28, 2017
View all
View all
🌐
JetBrains
jetbrains.com › guide › java › tips › smart-completion
Smart Completion - JetBrains Guide
February 17, 2023 - Press⌃⇧␣ (macOS) / Ctrl+Shift+Space (Windows/Linux) to invoke smart completion.
🌐
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 206356499-How-to-change-the-ctrl-space-autocomplete-to-cmd-space-in-mac-
How to change the ctrl+space (autocomplete) to cmd+space in mac? – IDEs Support (IntelliJ Platform) | JetBrains
September 8, 2013 - Hi there, Settings (Preferences on Mac) | Keymap Find required action and change key sequence to the required one (e.g. remove current and add new one .. or just add new one if you want to have 2 different sequences). P.S. You can search for required action by it's name .. or by keyboard shortcut (button next to search field)
🌐
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 206916955-Code-Completion-on-Mac-OS-X
Code Completion on Mac OS X – IDEs Support (IntelliJ Platform) | JetBrains
April 9, 2011 - This doc says it is Control-Space, ...idea/docs/IntelliJIDEA_ReferenceCard_Mac.pdf However, I have Control-Space assigned to activating Spotlight, and Command-Space assigned to changing keyboard input method. So, how do I use code completion while using Mac OS X (Lion)? Thanks! Kevin. ... Just go to the Keymap settings and assign whatever Shortcut you like to ...
🌐
JetBrains
jetbrains.com › help › idea › auto-completing-code.html
Code completion | IntelliJ IDEA Documentation
2 weeks ago - After you specify an imported package name, such as http, you can type 404 to autocomplete the value to http.StatusNotFound. Narrow down the suggestion list by typing any part of a word (even characters from somewhere in the middle) or invoking ...
🌐
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 360003653580-Shortcut-key-to-auto-complete-covering-the-next-word
Shortcut key to auto-complete covering the next word. – IDEs Support (IntelliJ Platform) | JetBrains
I am looking at options to auto-complete where the auto-complete also covers the next word. I know two shortcut keys to auto-complete right now. One is 'Tab' which replaces the next word and the other is 'Cmd + Shift + Enter' which covers the ...
Find elsewhere
🌐
ShortcutFoo
shortcutfoo.com › app › dojos › intellij-idea-mac › cheatsheet
IntelliJ IDEA Cheat Sheet | ShortcutFoo
Master IntelliJ IDEA with our comprehensive cheatsheet! Discover keyboard shortcuts, powerful features, and expert tips for an optimized Java development workflow.
🌐
DEV Community
dev.to › riyadattani › intellij-shortcuts-for-mac-4fca
IntelliJ Shortcuts (for Mac) - DEV Community
December 9, 2024 - CMD + SHIFT + DOWN - when your cursor is on the name of the function/class, use this to move the whole block · CMD + SHIFT + ENTER - IntelliJ will autocomplete the block like "if" or "when"
🌐
Medium
medium.com › javarevisited › useful-shortcuts-to-code-in-intellij-without-mouse-mac-3df8eca729cb
Useful Shortcuts To Code In IntelliJ Without Mouse(mac) | by JAVING | Javarevisited | Medium
December 30, 2021 - If we didn’t have this shortcut the only shortcut we would have to explore the internals would be to jump into directly using ⌘ + B. ... See Available options / Autocomplete ⌃ + space This shortcut is a basic one and a must know.
🌐
Rip Tutorial
riptutorial.com › code completion
intellij-idea Tutorial => Code Completion
Learn intellij-idea - Code Completion
🌐
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 360010695740-How-trigger-code-suggestion
How trigger code suggestion – IDEs Support (IntelliJ Platform) | JetBrains
For example, on vs code they have a short cut for autocompletition trigger and it can be very useful in times when you forgot how some property names, but I can't foud the same in webstorm... ... As @Andriy Bazanov wrote, you can check what shortcut is assigned to Main Menu | Code | Code Completion | Basic action in Preferences | Keymap ... Ohh now I get it. Thanks for the fast answer. ... As Elena said -- you can check/change it at "Preferences | Keymap". ⌃Space perhaps on Mac (depends on Keymap used)
🌐
JetBrains
blog.jetbrains.com › home › intellij idea › code completion
Code Completion - The JetBrains Blog
July 16, 2020 - IntelliJ IDEA shows a suggests a variable for us, and if we select it and type a dot we get the Basic Completion list of methods we could call. Methods directly on the class itself are in bold, and methods on super-classes are displayed in a lighter font.
🌐
Stack Overflow
stackoverflow.com › questions › 65383095 › easier-suggestions-in-intellij-idea-no-ctrlspace-and-fuzzy-search
java - Easier suggestions in Intellij IDEA (no `CTRL+Space` and fuzzy search) - Stack Overflow
Top answer
1 of 1
2
  • Yes, this is achievable. Go to Settings -> Editor -> General -> Code Completion and check 'Show suggestions as you type'
  • Partially achievable. You have to go again to Settings -> Editor -> General -> Code Completion and uncheck 'Match case'. This will help you with the completion but the results are not always as expected.

Tested on IDEA 2020.3

🌐
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 115000166784-IntelliJ-Code-completion-not-working-no-suggestions
IntelliJ: Code completion not working - no suggestions – IDEs Support (IntelliJ Platform) | JetBrains
April 12, 2017 - Unchecked the power save mode which is on the right bottom corner with icon of man. ... I had similar issue. Basic code completion was not working for java code on intellij CE macOS. The shortcut ctrl + space ...
🌐
Reddit
reddit.com › r/intellijidea › intellij autocompletion not working
r/IntelliJIDEA on Reddit: IntelliJ AutoCompletion Not Working
July 12, 2020 -

I tried everything. It was working like the first day I downloaded IntelliJ and then something happened where it stopped auto-completing. I looked up the issue, went into Preferences(Macbook) -> General -> Code Completion -> and checked and unchecked everything which looked like it could fix my problem.

Nothing worked, autocomplete only happens for some random words which are completely unrelated to the program I'm writing. It doesn't get the most obvious auto completes.

So I deleted IntelliJ and redownloaded. Nope. I deleted IntelliJ and all the files that came with it. Nope. (Though I may have done something wrong here, for some reason the code on InteliJ that I wrote came back, so I didn't delete it fully somehow. I gave up and started working on a project, but it's getting annoying without auto-complete. I don't wanna try deleting everything again so I don't have to redo all the files and everything. Heeeeeelp.

TLDR: Tried going Preferences -> General -> Code Completion, nothing worked, tried deleting reinstalling, didn't work. Help please, thank you so much in advance.

Top answer
1 of 2
1
https://intellij-support.jetbrains.com/hc/en-us/community/posts/360000116064-Autocompletion-stopped-working
2 of 2
1
Are you following these instructions when uninstalling? https://www.jetbrains.com/help/idea/uninstall.html https://intellij-support.jetbrains.com/hc/en-us/articles/206544519
🌐
JetBrains
jetbrains.com › help › idea › reference-keymap-mac-default.html
Predefined macOS keymap | IntelliJ IDEA Documentation
You can find all shortcuts and modify them in Settings | Keymap.
🌐
JetBrains
jetbrains.com › help › idea › mastering-keyboard-shortcuts.html
IntelliJ IDEA keyboard shortcuts | IntelliJ IDEA Documentation
1 month ago - IntelliJ IDEA has keyboard shortcuts for most of its commands related to editing, navigation, refactoring, debugging, and other tasks. Memorizing these hotkeys can help you stay more productive by keeping your hands on the keyboard. All default shortcuts are configurable and you can also assign shortcuts to any action that does not have them by default. For the predefined keymaps, refer to Predefined macOS keymap and Predefined Windows keymap.
🌐
Medium
medium.com › @AlexanderObregon › mastering-intellij-ideas-keymap-a-guide-to-shortcuts-and-customization-fb3ae6dd5a28
Mastering IntelliJ IDEA’s Keymap — A Guide to Shortcuts and Customization
April 25, 2024 - Here are some essential shortcuts for IntelliJ IDEA that can significantly boost your productivity: Auto-Completion: Ctrl+Space (Cmd+Space on macOS) Automatically completes code based on context.
🌐
Stack Overflow
stackoverflow.com › questions › 26323601 › cycle-through-autocomplete-suggestions-without-arrows
intellij idea - Cycle through autocomplete suggestions without arrows - Stack Overflow
Top answer
1 of 5
45

Peter Gromov's answer brought me to a satisfying solution:

In IntelliJ's settings, for Keymap → Editor Actions → Down I set a custom shortcut: Ctrl + J.

This way I can cycle forward through the suggestions.

Setting a shortcut for Down with Selection or Scroll Line Down in the IdeaVim-specific shortcuts did not affect the selection of autocomplete suggestions though.

2 of 5
17

The answer here led me to discover that Ctrl+n and Ctrl+p allow navigation of the auto-complete options without having to modify any settings.