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POHow can you handle dismissing a DialogFragment (compatibility lib) upon completion of an AsyncTask
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copied!<p>There are numerous posts about how to handle a configuration change during an AsyncTask, but none I have found give a clear solution regarding apps that are in background (onPause()) when an AsyncTask finishes and tries to dismiss a DialogFragment (compatibility library). </p> <p>Here is the problem, if I have an AsyncTask running that should dismiss a DialogFragment in onPostExecute(), I get an IllegalStateException if the app is in the background when it tries to dismiss the DialogFragment.</p> <pre><code>private static class SomeTask extends AsyncTask<Void, Void, Boolean> { public SomeTask(SomeActivity tActivity) { mActivity = tActivity; } private SomeActivity mActivity; /** Set the view during/after config change */ public void setView(Activity tActivity) { mActivity tActivity; } @Override protected Boolean doInBackground(Void... tParams) { try { //simulate some time consuming process TimeUnit.SECONDS.sleep(3); } catch (InterruptedException ignore) {} return true; } @Override protected void onPostExecute(Boolean tRouteFound) { mActivity.dismissSomeDialog(); } } </code></pre> <p>The Activity looks like this:</p> <pre><code>import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; public class SomeActivity extends FragmentActivity { public void someMethod() { ... displaySomeDialog(); new SomeTask(this).execute(); ... } public void displaySomeDialog() { DialogFragment someDialog = new SomeDialogFragment(); someDialog.show(getFragmentManager(), "dialog"); } public void dismissSomeDialog() { SomeDialogFragment someDialog = (SomeDialogFragment) getFragmentManager().findFragmentByTag("dialog"); someDialog.dismiss(); } .... } </code></pre> <p>Works fine UNLESS the app switches to background while SomeTask is still running. In that case, when SomeTask tries to dismissSomeDialog(), I get an IllegalStateException.</p> <pre><code>05-25 16:36:02.237: E/AndroidRuntime(965): java.lang.IllegalStateException: Can not perform this action after onSaveInstanceState </code></pre> <p>All of the posts I've seen seem to point in some kludgy direction with elaborate workarounds. Isn't there some android way of handling this? If it were a Dialog instead of a DialogFragment, then the Activity's dismissDialog() would handle it correctly. If it were a real DialogFragment instead of one from the ACP, then dismissAllowingStateLoss() would handle it. Isn't there something like this for the ACP version of DialogFragment?</p>

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