Solution
The simplest solution (not using intents) is to instruct each user of
my component to define a new content provider:
content://myComponentNamespace.theirApplicaitonNamespace
Android lets me search through all available content providers, which
can be string matched to my own component namespace.
context.getPackageManager().queryContentProviders(null, 0, 0);
If I find more than one valid Content Provider I can then pass around
Synchronisation information (validity, compatibility, version, status,
etc) using any of the ContentProvider class methods (I used getType
()).
The only problem with this approach is that the application developer
who imports my component (as a JAR) will have to define their own
custom Content Provider. This is done by extending the
MyComponentContentProvider class (from my JAR) and defining a
CONTENT_URI variable.
package test;
import com.whitemice.MyComponentContentProvider;
public class TheirContentProvider extends MyComponentContentProvider {
public static final Uri CONTENT_URI =
Uri.parse( "content://
myComponentNamespace.theirApplicaitonNamespace");
}
As well as adding the custom provider to the Android manifest.
<provider
android:name="test.TheirContentProvider"
android:authorities="test.service.TestContentProvider.TestAndroidContentProvider"
/>
Without the custom Content Provider configuration, Android will behave
strangely and sometimes call a different .APK file if it has a class
in it with the same name.
As this is a work time project, I will have to check if I can release
the synchronisation code as a working example. If I do it will appear
on my blog here:
http://tinyurl.com/9hwdva
Regards
Mark
P.S. Thanks again everyone for your suggestions.
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