Last night, Google rolled out the Android 4.1.2 Jelly Bean update for the Nexus 7. The first visible change brought about by the update was a landscape orientation for the stock launcher on the table. There was no other in-depth change-log provided except for the usual performance improvements and bug-fixes.
However, Google has also introduced one new change in Android 4.1.2 as to how the notifications are expanded in the notification bar. In Android 4.1.1, users would need to swipe with their two fingers to expand any notification. In day to day usage, using the two finger gesture to expand a notification was cumbersome to use.
Thankfully, in Android 4.1.2, Google has introduced a new one finger gesture that allows users to expand or collapse a notification easily.
Artem from Android Police has recorded an excellent video showing how the one finger notification works.
The gesture will work just fine on the Galaxy Nexus, and other devices whenever they get the Android 4.1.2 update.