问题:

Hi I have to develop an application which should enable sharing of pdf files. I have to create a service wich puts my application as default for .PDF file sharing. As you can see on the picture I can share the pdf via bluetooth/Gmail/Drive...etc. I need to put there my application to. How can it be done? thanks :)

回答1:

http://www.vogella.com/articles/AndroidIntent/article.html

Go here, then check

4.3. Example: Register an activity for the share intent

回答2:

You need to register it as a reciever for the SEND action. An example is given here. The mime type for pdf is 'application/pdf'.

回答3:

I think you cannot force that, its totally on android system, thats why it pushes for a chooser with all the apps that has registered themselves as handler for specified data type, following which user can mark it as default or not.