[android-developers] Re: Upgrading from 1.6 to 2.2+

Scratch the "without (which was the first mistake) testing them on
actual
hardware that does run that OS". We are planning this upgrade now but
we don't have the hardware for it yet so we will be testing them on
emulators.
That was a different posting I had - I cannot see any dev phones on
the
Market.

On Sep 8, 4:40 pm, kypriakos <demet...@ece.neu.edu> wrote:
> Hi guys,
>
> apologies for the vagueness. We wrote apps using API 4 to run on HTC
> G1
> development phones that can run at the max Android 1.6. We wanted to
> port a number of them to Android 2.2+ without (which was the first
> mistake) testing them on actual hardware that does run that OS. Would
> such phones run apps written with API 4 without major overhaul?
>
> @ Diane - The diffs are primarily incremental right? Each new API
> compared
> to the one before it? Still this helps!
>
> @ Mark - is Marakana only providing sessions on the West Coast? Do
> they
> have anything planned for the NorthEast?
>
> On Sep 8, 12:22 pm, Dianne Hackborn <hack...@android.com> wrote:
>
>
>
>
>
>
>
> > Information about the major changes in each version is available here:
>
> >http://developer.android.com/sdk/index.html
>
> > On the left is the section for each version.  This includes an overview of
> > the major new feature, as well as detailed API diffs of the new APIs
> > introduced in that version.
>
> > Your question isn't specific enough to be able to answer much more than
> > that.
>
> > On Thu, Sep 8, 2011 at 8:53 AM, kypriakos <demet...@ece.neu.edu> wrote:
>
> > > Hi all,
>
> > > we are in the process of moving a number of apps and their convoluted
> > > logic from older OSes (1.6) to 2.2. Are versions 2.2+ backwards
> > > compatible
> > > for the most part with older versions? What are the most profound
> > > changes that need to be done? Most of these apps make use of data
> > > on the SD card (read and write to it) but the rest of the
> > > functionality is
> > > modest.
>
> > > I  know this is a loaded question and I am not looking for a
> > > comprehensive
> > > answer but more like major points/directions to follow. I was thinking
> > > also
> > > that Mark's books may come handy since they do progressively walk
> > > through
> > > versions.
>
> > > Thanks
>
> > > --
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>
> > --
> > Dianne Hackborn
> > Android framework engineer
> > hack...@android.com
>
> > Note: please don't send private questions to me, as I don't have time to
> > provide private support, and so won't reply to such e-mails.  All such
> > questions should be posted on public forums, where I and others can see and
> > answer them.

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