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2.
Two hands: Multi-touch gestures require two-
handed operation. Maps app on Android
addresses this issue by including zoom in/out
buttons overlaid on the map.
3.
Nice to have: In most cases, gesture is a nice to
have but not critical. Sort of like keyboard
shortcuts – power users will love them, but most
people won’t even know they are there.
4.
No replacement: A common vocabulary for
gestures does not exist yet so it is too soon for
most apps to skip visible controls that can be
used with a single-finger.
g.
Orientation
Portrait is by far the most popular orientation so optimize for
this case first. If the application invites lots of typing, it should
support landscape orientation so users can access the larger
keyboard.
h.
Communication
To improve the communication between users and the
application, there are several things that need to be considerate:
1.
Provide feedback: Provide instant feedback for every
interaction. The feedback could be visual (highlighting a
tapped button, for instance). If the user has requested an
action that is going to take a long time, display a spinner
or progress bar to let them know their requests are
received.
2.
Modal alerts: Modal alerts are extremely pushy and
intrusive to the user’s flow, so only use them when
something is seriously wrong. Even then, try to mitigate
the intensity by keeping language reassuring and
friendly. Remember not to use modal alerts for FYI type
information.
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