I usually start with Ctrl+P to see what arguments are accepted (auto guess complete is way to error prone in my opinion). And if as in your case you want to fill in name type n a dropdown menu appears with all available variables/fields (etc) starting with n Arrow Up/Down and Tab to select name, or Ctrl+Space to select a method (or even Ctrl+Alt+Space to be killed by suggestions;-), followed by , and v Tab for value.
File –> Keymap –> Main Menu –> Parameter Info –> Right Click –> Add keyboard short cut
I dont know whether it is added advantage or not while creating a constructor (ctrl+shift+space) will give default constructor after that cursor stays within the parenthesis gives all parametrized constructor of a particular class without any short cut 🙂
in eclipse ctrl+space with give you all the constructors of class 
in android studio no need short cut key 
🙂
You Can Use Eclipse Short Cut Keys in Android Studio Follow Below Process :
File — > Settings — > Keymap —> under Keymaps Drop down Select Eclipse option
Cheers