title: How to show toast in AsyncTask in doInBackground
body: <p>In one of my activities I'm using <code>AsyncTask</code>. In <code>doInBackground()</code> I'm making calls to various methods. In one of these methods I'm getting an exception, so in the catch block I want to show the error in the Toast.
  I know I can use <code>Log</code>, but still I prefer Toast.
  So, how can I use Toast in AsyncTask in doInBackground()?</p>