Widget - simple black-white stopwatch.
1. Button on bottom: start/pause/stop timer
2. Button on top: reset timer
If on bottom is text "START" then the timer is stopped.
If on bottom is text "STOP" then the timer is running.
To see the widget running on the home screen, add the widget there:
Press the Back key (in the upper-right corner of the emulator device) to return to the home screen (showing a watch face).
Swipe the home screen right until you see + Add widget. Select it.
Swipe right until you see your widget application. Select it.
More informations about widgets: https://www.youtube.com/watch?v=PTfne3rOF6g