Within a public class that doesn't extend any other class I'm doing some evaluation stuff and I would like to return a Dialog if something needs to be communicated to the user.

I'm using an AsyncTask to run a method of an instance of this class from the main UI:

```
private OnlineActivities onlineActivities = new OnlineActivities();

new DoOnlineActivity().execute(getApplicationContext());

private class DoOnlineStuff extends AsyncTask<Context, Integer, Dialog> {
    @Override
    protected Dialog doInBackground(Context... params) {
        return onlineActivities.start(params[0]);
    }

    @Override
    protected void onProgressUpdate(Integer... progress) {
        Log.v(RuntimeVars.getMyName(), "AsyncOnlineTask in progess");
    }

    @Override
    protected void onPostExecute(Dialog result) {
        if (result != null)
            result.show();
    }
}

```

Now, the `public Dialog start()` method of `OnlineActivities.java` creates a dialog using the Context that was assigned via it's parameter.

When the Dialog is returned to `onPostExecute` I receive the following exception

```
11-14 23:53:43.303: ERROR/AndroidRuntime(1320): FATAL EXCEPTION: main
11-14 23:53:43.303: ERROR/AndroidRuntime(1320): android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.view.ViewRoot.setView(ViewRoot.java:509)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.app.Dialog.show(Dialog.java:241)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at info.myProject.messaging.ConversationList$DoOnlineActivity.onPostExecute(ConversationList.java:245)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at info.myProject.messaging.ConversationList$DoOnlineActivity.onPostExecute(ConversationList.java:1)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.os.AsyncTask.finish(AsyncTask.java:417)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.os.AsyncTask.access$300(AsyncTask.java:127)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.os.Looper.loop(Looper.java:123)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at android.app.ActivityThread.main(ActivityThread.java:4627)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at java.lang.reflect.Method.invokeNative(Native Method)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at java.lang.reflect.Method.invoke(Method.java:521)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-14 23:53:43.303: ERROR/AndroidRuntime(1320):     at dalvik.system.NativeStart.main(Native Method)

```

I suppose I cannot use the context like this. But what would be the alternative? How can I outsource some basic stuff I always need to do, even some general Dialogs? 

Do I need to use custom intents instead?