What is the shortcut to Auto import all in Android Studio?

These are the shortcuts used in Android studio

Go to class CTRL + N
Go to file CTRL + Shift + N
Navigate open tabs ALT + Left-Arrow; ALT + Right-Arrow
Look up recent files CTRL + E
Go to line CTRL + G
Navigate to last edit location CTRL + SHIFT + BACKSPACE
Go to declaration CTRL + B
Go to implementation CTRL + ALT + B
Go to source F4
Go to super Class CTRL + U
Show Call hierarchy CTRL + ALT + H
Search in path/project CTRL + SHIFT + F

Programming Shortcuts:-

Reformat code CTRL + ALT + L
Optimize imports CTRL + ALT + O
Code Completion CTRL + SPACE
Issue quick fix ALT + ENTER
Surround code block CTRL + ALT + T
Rename and Refractor Shift + F6
Line Comment or Uncomment CTRL + /
Block Comment or Uncomment CTRL + SHIFT + /
Go to previous/next method ALT + UP/DOWN
Show parameters for method CTRL + P
Quick documentation lookup CTRL + Q
Delete a line CTRL + Y
View declaration in layout CTRL + B

For more info visit Things worked in Android

For Windows/Linux, you can go to File -> Settings -> Editor -> General -> Auto Import -> Java and make the following changes:

• change Insert imports on paste value to All

• markAdd unambigious imports on the fly option as checked

On a Mac, do the same thing in Android Studio -> Preferences

After this, all unambiguous imports will be added automatically.

By changing the keymaps settings you can use the same keyboard short cuts as in Eclipse (Or your favourite IDE)

File -> Settings -> KeyMap

Android Studio -> Preferences -> KeyMap (Mac)

Change keymaps settings to eclipse so that you can use the short cut keys like in eclipse. For those who just want to change this one setting, it is

Main Menu -> Code -> Optimize Imports...