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.

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 

Conclusion

The "Auto Import All" feature in Android Studio streamlines your development workflow by automatically managing imports. 

Using the appropriate shortcut (Ctrl + Alt + O on Windows/Linux or Cmd + Option + O on macOS), you can save time and avoid clutter in your code. 

This ensures that your project remains well-organized, with only the necessary imports included. Regularly using this feature helps maintain clean, efficient, and error-free code, ultimately improving both individual and team productivity.