How do I display the current value of an Android Preference in the Preference summary?

by

There are ways to make this a more generic solution, if that suits your needs.

For example, if you want to generically have all list preferences show their choice as summary, you could have this for your onSharedPreferenceChanged implementation:

public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
    Preference pref = findPreference(key);

    if (pref instanceof ListPreference) {
        ListPreference listPref = (ListPreference) pref;
        pref.setSummary(listPref.getEntry());
    }
}

This is easily extensible to other preference classes.

And by using the getPreferenceCount and getPreference functionality in PreferenceScreen and PreferenceCategory, you could easily write a generic function to walk the preference tree setting the summaries of all preferences of the types you desire to their toString representation

More Related Contents:

  1. Android Alarm Clock UI
  2. Difference between a View’s Padding and Margin
  3. How do I align views at the bottom of the screen?
  4. How to add a button to PreferenceScreen
  5. Grid of images inside ScrollView
  6. Is it a bad practice to use negative margins in Android?
  7. Android ViewPager with bottom dots
  8. Android: Creating custom preference
  9. Why are most UI frameworks single threaded?
  10. How to open or simulate a click on an android Preference, created with XML, programmatically?
  11. How to display more than 3- levels of expandable List View?
  12. What’s the maximum size for an Android shared preference value?
  13. How to listen for preference changes within a PreferenceFragment?
  14. Custom PreferenceCategory Headings
  15. How can I change font size in PreferenceScreen
  16. How to detect “Recent Apps” system button clicks (Honeycomb+)
  17. How do you create Preference Activity and Preference Fragment on Android?
  18. Detecting Webview Error and Show Message
  19. How to use Percentage for android layout?
  20. Is it possible to make a horizontal NumberPicker?
  21. Android 4.2.1 wrong character kerning (spacing)
  22. How can I improve the look and feel of an Android app?
  23. Android – How Do I Set A Preference In Code
  24. Dynamic ListPreference in android
  25. Android action bar like twitter sample
  26. Multi-State Toggle Button
  27. Horizontal “tab”ish scroll between views
  28. PreferenceFragmentCompat has padding on PreferenceCategory that I can’t get rid of
  29. How to detect if changes were made in the preferences?
  30. @Override annotation error (android prefs)

Leave a Comment