Hook in your own item to the "share-list"

Question

When you take a picture or looks at one in the album, there is a "share-button" visible. Is it possible to hook-in your own item to that list, so I can share the picture via my own app? If so, how do I do that?

Answer 1

Try implementing an activity that responds to an ACTION_SEND Intent for whatever image MIME types you want.

See here for a sample project that demonstrates this, for plain text and Twitter instead of images and your specific app.