Are you talking about two applications as in your title or two components as
in your text?  If the latter, there is no reason to use a ContentProvider;
just use whatever is easiest since they share the same file system: raw
files, data bases, shared preferences.  For shared preferences, you want to
avoid putting lots and lots of data there, since when you make a change it
is all written out as one flat xml file.

On Fri, Apr 17, 2009 at 4:52 AM, [email protected] <[email protected]>wrote:

>
> Hi all,
> Now I have 2 activities that would simultaneously access one data/
> settings.
> However, two kind of solution can be applied after I study from the
> Android Developer's Guild.
>
> One is ContentProvider,
> The discription in guild is as:
> "Content providers store and retrieve data and make it accessible to
> all applications. They're the only way to share data across
> applications; there's no common storage area that all Android packages
> can access."
>
> and another is SharedPreferences,
> "To use preferences that are shared across multiple application
> components (activities, receivers, services, providers), you can use
> the underlying Context.getSharedPreferences() method to retrieve a
> preferences object stored under a specific name."
>
> What is the differenet between these 2 ?
>
> Thanks a lot!
>
> >
>


-- 
Dianne Hackborn
Android framework engineer
[email protected]

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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