It is highly recommended to use the Eclipse IDE as an Android application development environment. Eclipse IDE nicely integrates a Android SDK into Eclipse by the use of Android Development tools. In case that you have decided to use Eclipse IDE here are some shortcut to make your android application development much faster:

Action Keyboard Shortcut
Create a new file in the current package Alt+Shift+N
Organize the import statements Ctrl+Shift+O
Navigate to the source definition F3
Rename an object Alt+Shift+R
Search through Java files Ctrl+H
Open a particular type Ctrl+Shift+T
Find declarations Ctrl+G
Navigate left Alt+left-pointing arrow
Navigate right Alt+left-pointing arrow