Android updates Preference UI display

After editing the data settings of a preference sub Preference and modifying outPrefs in the sub, the returned result shows that out Prefs has not changed. How to update in real time?

PreferenceScreen usersListScreen =...

UserScreenListAdapter = (BaseAdapter) usersListScreen. getRootAdapter ();

Then you can use

UserScreenListAdapter. notifyDataSetChanged ();

To update the display of out Prefs.

You can also use onContentChanged () to ensure correct attribute initialization ();

Found:

In the nested Preference, when the Prefs is returned from the inner to the outer Prefs, The Prefs is still the original one, but it is always saved in the stack. to update the display in real time, you need to manually process it.