Google Nexus One - Using the Trackball

Android basics 38
NOUG-2.1-update1-105 Nexus One User’s Guide
Using the trackball
Some actions are easier using the Trackball than your finger, such as:
G Opening an event in a crowded calendar
G Selecting a link or form field on a web page
G Selecting text to edit
To use the trackball
S Roll the trackball to select items on the screen.
The selected item is highlighted in orange.
S Pressing the trackball is equivalent to touching the selected item with your finger.
S Pressing & holding the trackball is equivalent to touching & holding the selected
item with your finger.
Items that you select with the
Trackball are highlighted in orange.