The most complete Android Studio Shortcuts (pro-Test available)

Action	Mac OSX	Win/linux
Comment Code (//)	CMD +/	Ctrl +/
Comment Code (/**/)	CMD + Option +/	Ctrl + Alt +/
Formatting code	CMD + Option + L	Ctrl + Alt + L
Clear Invalid Package reference	Option + Control + O	Alt + Ctrl + O
Find	CMD + F	Ctrl + F
Find + Replace	CMD + R	Ctrl + R
Move code up and down	Option + Shift + up/down	Alt + Shift + up/down
Delete Row	CMD + Delete	Ctrl + Y
Expand Narrow Selection	Option + Up/down	Ctrl + W/ctrl + Shift + W
Quick Build Structure	CMD + Option + T	Ctrl + Alt + T
Quick Overwrite Method	Ctrl + O	Ctrl + O
Quick position to beginning/end	CMD + left/right	Ctrl + left/right
Collapse Unwind code block	CMD + Plus,minus	Ctrl + Plus/minus
Collapse Expand all code blocks	CMD + Shift + plus,minus	Ctrl + Shift + plus,minus
File method Structure	CMD + F12	Ctrl + F12
Find the location of the call	Ctrl + Option + H	Ctrl + Alt + H
Uppercase and lowercase conversions	CMD + Shift + U	Ctrl + Shift + U
Code highlighting	Shift + CMD + F7	Alt + J
Code highlighting up Search	Shift + CMD + G	Shift + F3
Code highlighting down search	CMD + G	F3
Find the location of the call	Ctrl + Alt + H	Ctrl + Alt + H
Quick Find Definition	CMD + Space	Ctrl + Shift + I
Collapse Unwind code block	CMD + Plus,minus	Ctrl + Shift + plus/minus
Collapse Expand all code blocks	CMD + Shift + plus,minus
Add Bookmark	F3	F11
Add Bookmark ID	Alt + F3	Ctrl + F11
Show bookmarks	CMD + F3	Shift + F11
Find an action	CMD + Shift + A	Ctrl + Shift + A
Move code up and down	Alt + Shift + up/down	Alt + Shift + up/down
Delete Row	CMD + Delete	Ctrl + Y
Quickly copy rows down	CMD + D	Ctrl + D
Expand Narrow Selection	Alt + Up/down	Ctrl + W/ctrl + Shift + W
Quick Build Structure	CMD + Alt + T	Ctrl + Alt + T
Quick Overwrite Method	Ctrl + O
Quick position to beginning/end	CMD + left/right
Generate code by template	CMD + J	Ctrl + J
Comment Code (//)	CMD +/
Comment Code (/**/)	CMD + Alt +/
Formatting code	CMD + Alt + L
Quick Selection	Alt + F1	Alt + F1
Quick Move	Ctrl + Up/down
Quick rewind to end of line	Ctrl + Shift + J	Ctrl + Shift + J
Shortcut recently opened	CMD + E	Ctrl + E
Clear Invalid References	Alt + Control + O	Alt + Control + O
Code completion	CMD + Shift + Enter	Ctrl + Shift + Enter
Prompt for error resolution	Alt + Enter	Alt + Enter
Hint parameter type	CMD + P	Ctrl + P
Find + Replace	CMD + R	Ctrl + R
Find	CMD + F	Ctrl + F
Show Docs for selected API	F1	CTRL + Q
Show parameters for selected method	CTRL + P	CTRL + P
Generate method	CMD + N	ALT + Insert
Jump to Source	CMD + Down-arrow	F4
Search by symbol name	OPTION + CMD + O	CTRL + ALT + SHIFT + N
Build	CMD + F9	CTRL + F9
Build and run	CTRL + R	SHIFT + F10
Toggle Project Visibility	CMD + 1	ALT + 1
Navigate Open Tabs	CTRL + Left-arrow; CTRL + Right-arrow	ALT + Left-arrow; ALT + Right-arrow
Open class	Cmd+o	CTRL + N
Open file	Cmd+shift+o	Ctrl+shift+n
Open Symbol	Cmd+alt+o	Ctrl+shift+alt+n
Recent Files opened	Cmd+e	Ctrl+e
Recently edited files	Cmd+shift+e	Ctrl+shift+e
Last edited location	Cmd+shift+backspace	Ctrl+shift+backspace
Go to Declaration	Cmd+b	Ctrl+b
Go to Super	Cmd+y	Ctrl+u

The most complete Android Studio Shortcuts (pro-Test available)