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I am showing a ProgressDialog in the onPreExecute method of an AsyncTask object and canceling the ProgressDialog in the onPostExecute method. In the doInBackground method I am making an HTTP request for user registration. I wish to allow screen orientation changes. When I change the orientation while the doInBackground method is still running, i get all sorts of fun errors like 'IllegalArgumentException: View not attached to window manager' and 'RegisterScreen has leaked window...'
How can I properly continue to show the ProgressDialog after an orientation change? Or maybe, how can I disable orientation change after the user requests to submit their registration?
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If you want to manually handle orientation changes in your app you must declare the "orientation" , "screenSize" , and "screenLayout" values in the android:configChanges attributes. You can declare multiple configuration values in the attribute by separating them with a pipe | character.
When you rotate your device and the screen changes orientation, Android usually destroys your application's existing Activities and Fragments and recreates them . Android does this so that your application can reload resources based on the new configuration.
The DialogFragment class provides all the controls you need to create your dialog and manage its appearance, instead of calling methods on the Dialog object. Using DialogFragment to manage the dialog ensures that it correctly handles lifecycle events such as when the user presses the Back button or rotates the screen.
Try adding this attribute android:configChanges="orientation" to your Activity element in the AndroidManifest.xml file.
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