To keep on your keyboard home position for Android Studio

override_emacs_on_macos.md

Goals

• Base keymap is macOS.
• Don't use cursor keys.
• Use my favorite emacs keybindings for editor actions.

Use as it is (Default)

Shortcut	macOS / Emacs action
⌃p	Up
⌃n	Down
⌃f	Right
⌃b	Left
⌃a	Move Caret to Line Start
⌃e	Move Caret to Line End
⌃k	Cut up to Line End

Change actions

Shortcut	macOS action	Emacs action	Satisfied
⇥	Indent	Emacs Tab	◎
⌃space	Code Completion Basic	Toggle Sticky Selection	◎
⌃g	Add Selection for Next Occurrence	Escape	◎
⌃d	Debug	Delete	○
⌃h	Type Hierarchy	Backspace	○

Add shortcuts

Action	macOS shortcut	Emacs shortcut	Satisfied
Cut	⌘x	⌃w	△
Copy	⌘c	⎋x	✕
Paste	⌘v	⌃y	△

Other shortcuts with cursor keys

Action	macOS shortcut
Extend Selection	⌥↑
Shrink Selection	⌥↓
Goto Previous Editor Tab	⌃←
Goto Next Editor Tab	⌃→
Navigate Back	⌘⌥←
Navigate Next	⌘⌥→
Go Previous Method	⌃↑
Go Next Method	⌃↓
View Source	⌘↓

See 【Android Studio】矢印キー(カーソルキー) を使わない排除したキーマップ【macOS】