java.lang.IllegalArgumentException: View not attached to window manager
<p>I have an activity that starts AsyncTask and shows progress dialog for the duration of operation. The activity is declared NOT be recreated by rotation or keyboard slide.</p>

<pre><code>    &lt;activity android:name=".MyActivity" 
              android:label="@string/app_name"
              android:configChanges="keyboardHidden|orientation"
              &gt;
        &lt;intent-filter&gt;
        &lt;/intent-filter&gt;
    &lt;/activity&gt;
</code></pre>

<p>Once task completed, I dissmiss dialog, but on some phones (framework: 1.5, 1.6) such error is thrown:</p>

<pre><code>java.lang.IllegalArgumentException: View not attached to window manager
    at android.view.WindowManagerImpl.findViewLocked(WindowManagerImpl.java:356)
    at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:201)
    at android.view.Window$LocalWindowManager.removeView(Window.java:400)
    at android.app.Dialog.dismissDialog(Dialog.java:268)
    at android.app.Dialog.access$000(Dialog.java:69)
    at android.app.Dialog$1.run(Dialog.java:103)
    at android.app.Dialog.dismiss(Dialog.java:252)
    at xxx.onPostExecute(xxx$1.java:xxx)
</code></pre>

<p>My code is:</p>

<pre><code>final Dialog dialog = new AlertDialog.Builder(context)
    .setTitle("Processing...")
    .setCancelable(true)
    .create();

final AsyncTask&lt;MyParams, Object, MyResult&gt; task = new AsyncTask&lt;MyParams, Object, MyResult&gt;() {

    @Override
    protected MyResult doInBackground(MyParams... params) {
        // Long operation goes here
    }

    @Override
    protected void onPostExecute(MyResult result) {
        dialog.dismiss();
        onCompletion(result);
    }
};

task.execute(...);

dialog.setOnCancelListener(new OnCancelListener() {
    @Override
    public void onCancel(DialogInterface arg0) {
        task.cancel(false);
    }
});

dialog.show();
</code></pre>

<p>From what I have read (<a href="http://bend-ing.blogspot.com/2008/11/properly-handle-progress-dialog-in.html">http://bend-ing.blogspot.com/2008/11/properly-handle-progress-dialog-in.html</a>) and seen in Android sources, it looks like the only possible situation to get that exception is when activity was destroyed. But as I have mentioned, I forbid activity recreation for basic events.</p>

<p>So any suggestions are very appreciated.</p>
