How to configure in IdeaVIM Ctrl + N and Ctrl + P completion from Vim?

Question

In Vim we can use Ctrl + N or Ctrl + P to finish code completion. How to configure it in IdeaVim for IntelliJ?

Answer 1

As of IntelliJ IDEA Community Edition v2020.1.1 with IdeaVim v0.57 plugin, what enables me to auto-complete code as well as cycling through suggestions with with Ctrl+N is the following:

• File -> Settings -> Keymap
• On the search bar type: hippie
• Add Keyboard Shortcut to "Cyclic Expand Word" Ctrl+N (If prompted, remove other assignments)
• Add Keyboard Shortcut to "Cyclic Expand Word (Backward)" Ctrl+P (If prompted, remove other assignments)

If like me, you had added the following to your .ideavimrc:

 imap  :action HippieCompletiona
 imap  :action HippieBackwardCompletiona

Comment those two lines out by prepending them with ", or delete them.