On 03/03/2013 09:02 AM, Michael Elsdörfer wrote:
The back button is not an exit button, and developers should not be telling
users that it is. If it were an exit button, it would be called exit. There
is no exit functionality in Android, for better of worse that is the way
Android was designed, and that is the constraints you need to work in.
"There is no such thing as "closing the application" or "auto exiting
the app" in the android application model."
https://groups.google.com/d/msg/android-developers/TBuJVev9V5k/ECXrVT8NF5IJ
We had quite a religious argument over this a while back. Some apps DO
have an exit button. There also some apps that you have to hit the back
button multiple times to exit. My apps have only a two layer hierarchy
and even then I am thinking of flattening it to one layer. It really
depends on what your app does and how irritated you want your user to be
if they want to completely get out of your app.
Also that link is from 2008 and things have changed a bit as they
already encouraged changing layouts because users often don't know about
menus.
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