What I see here is that while some things are backward compatible (most are
forward compatible), you also have to look at certain things that were not
implemented until that new version that you are working on. So, e.g;
If I start a project using api level 16, I don't expect to have things like
ViewPager under 2.x.
For this you will need the compatibility library added to your project or
the more robust ActionBarSherlock <http://bit.ly/SPSHIc>
Also, please note that some things get deprecated, get rewritten, but this
should not affect your application for future builds, so look into those
implementations for any methods that were never part of Android 2.x.
On Sunday, October 7, 2012 1:16:55 AM UTC-5, ML wrote:
> 1. i am building applications on 4.0 version of android. i want to know
> that this app will work on all the lower version of android?
> 2. i hv application on 2.0 version of android and in manifest file i hv
> specified min sdk-8 and max as 15 but when i run my app on 4.0 version
> android phone it crashed
> thanks in advance if any help