lucasjordan wrote:
> It is my understanding that tasks like selecting a contact or an image
> on the phone is best implemented by asking the system to provide a
> view to perform the action. I tried the example in the documentation:
>
> startActivityForResult(
> new Intent(Intent.ACTION_PICK,
> new Uri("content://contacts")), //actually using
> Uri.parse("content://contacts");
> PICK_CONTACT_REQUEST);
>
> but I get the following exception:
>
> 08-31 17:42:59.752: ERROR/AndroidRuntime(190):
> android.content.ActivityNotFoundException: No Activity found to handle
> Intent { action=android.intent.action.PICK data=content://contacts }
I believe your Uri is incorrect. Try content://contacts/people and see
if that works better.
> So, specifically,
> what is the correct URI to select a contact?
See above.
> In general, is there a
> list someplace of expected views and how can I query the system for
> available views.
That varies by what is all installed in Android. There are activities
native to Android, activities that might be added by a mobile vendor or
other form of Android "distro" (e.g., ApiDemos in the SDK emulator), and
activities the user installs.
At best, there could be a list of what's available in the base Android
OS, though I'm not sure such a list is available at this time. Though
one might have been added in the 0.9 documentation that I haven't run
across.
There are some introspection capabilities in Android, to find out what
can be done with a Uri at runtime. However, those seem to have been
seriously cut back in the 0.9 SDK from what was there in M5 -- there
used to be ActivityAdapater and ActivityIconAdapter, which were wicked
cool for this sort of thing. Right now, I think you are limited to
Menu#addIntentOptions() and the underlying support provided by
PackageManager#queryIntentActivityOptions().
--
Mark Murphy (a Commons Guy)
http://commonsware.com
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