Android AsyncTask - avoid multiple instances running
<p>I have AsyncTask that processes some background HTTP stuff. AsyncTask runs on schedule (Alarms/service) and sometime user executes it manually.</p>

<p>I process records from SQLite and I noticed double-posts on server which tells me that sometime scheduled task runs and at the same time user runs it manually causing same record to be read and processed from DB twice. I remove records after they processed but still get this.</p>

<p>How should I handle it ? Maybe organize some kind of queing?</p>
