How do I navigate to the start or end of a file in Android Studio?

Cant you just use cmd (or ctrl) + Home / End

On a Mac slim keyboard (without dedicated Home or End keys), Fn + Left/Right arrow is the equivalent.

So Cmd + Fn + Left/Right arrow should go to Start/End of file.

Navigate by braces, with a couple iterations you will get to start and end of file:

To navigate to start use:

command + option + [

and for end use:

command + option + ]

Once you are at the outer-most brace, you will not need multiple keystrokes.

This is especially useful for more than one closure in your java file.

Navigating to Braces