title: Can I start an AsyncTask through a share activity, without displaying the activity?
body: <p>The question is pretty much in the title. I want to know if I can start and execute an AsyncTask or something else in the background with the Intent data from the share activity, without actually launching the share activity. I looked for some information, but the only thing I found is how to register a service with your app, which isn't really what I was looking for. Bonus question: can I also display a notification or a small disappearing textbox on the display upon the AsyncTask completion/addition</p>
  
  <p>To avoid confusion, this is what I mean with share activity:</p>
  
  <pre><code>&lt;activity android:name=".ShareActivity"&gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.SEND" /&gt;
              &lt;category android:name="android.intent.category.DEFAULT" /&gt;
              &lt;data android:mimeType="image/*" /&gt;
          &lt;/intent-filter&gt;
  &lt;/activity&gt;
  </code></pre>
  
  <p>Thanks a lot in advance</p>