I'm attempting to launch the Gallery app (or any third party gallery apps) from my application in order to allow the user to select multiple images, then return the URIs. I am currently able to select a single image, however I can't figure out how to select more than one.
I don't really want to use a custom gallery. However, if there is no way to solve this problem without using one, I suppose that's the approach I will have to take.
I'm not sure if you ever found an answer to this, but since I've been looking for something similar, I figure I would reply.
There doesn't appear to be a way to select multiple images without using or writing a custom version of the gallery. If you haven't already come across it, there is an open source one available at:
https://github.com/vikaskanani/Android-Custom-Gallery-And-Instant-Upload
and the writer's blog is available
http://vikaskanani.wordpress.com/android-custom-gallery-and-instant-upload-project/
It allows for multiple selection, image preview and taking photos. It seems to be targeted for Android 2.3.1 but I believe without much trouble it will work with Android 2.2.
It seems to work pretty simply and you should be able to modify it for your project as needed.