Android Settings Screen using the v7.preference library

activity_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    tools:context=".ui.settings.SettingsActivity">

    <FrameLayout
        android:id="@+id/pref_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
  
</RelativeLayout>

AndroidManifest.xml

<manifest package="com.yourpackage"
          xmlns:android="http://schemas.android.com/apk/res/android">

    <application
                 ...
                 ...
                 ... 
                 android:theme="@style/AppTheme">
      ...
      
      ...

        <activity android:name=".ui.settings.SettingsActivity"
            android:theme="@style/AppTheme.Settings"
            android:label="Settings"/>

    </application>

</manifest>

app_preferences.xml

 <!--NOTE: Place this file in res/xml/-->

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.preference.PreferenceScreen
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!--Main bits of preferences-->
    <android.support.v7.preference.PreferenceCategory
        android:title="General">

        <android.support.v7.preference.ListPreference
            android:defaultValue="@string/sort_by_last_name"
            android:dialogTitle="@string/pref_sort_list_label_sortType"
            android:entries="@array/pref_sortType_entries_lists"
            android:entryValues="@array/pref_sortType_values_lists"
            android:key="pref_sort_order_lists"
            android:title="@string/pref_title_sort_lists"/>

        <android.support.v7.preference.ListPreference
            android:defaultValue="@string/state_indiana"
            android:dialogTitle="@string/pref_title_home_state"
            android:entries="@array/pref_default_state_entries_list"
            android:entryValues="@array/pref_default_state_values_list"
            android:key="pref_default_home_state"
            android:summary="Preference summary here"
            android:title="@string/pref_title_home_state"/>

        <!--Not implemented-->
        <android.support.v7.preference.SwitchPreferenceCompat
            android:defaultValue="true"
            android:key="key1"
            android:summary="Switch Summary"
            android:title="Switch Preference"/>

        <!--Not implemented-->
        <android.support.v7.preference.EditTextPreference
            android:defaultValue="Default value"
            android:dialogMessage="Dialog Message"
            android:key="key2"
            android:summary="EditText Summary"
            android:title="EditText Preference"/>

        <!--Not implemented-->
        <android.support.v7.preference.CheckBoxPreference
            android:defaultValue="true"
            android:key="key3"
            android:summary="CheckBox Summary"
            android:title="CheckBox Preference"/>
    </android.support.v7.preference.PreferenceCategory>

    <!--Other Setting Categories-->
    <android.support.v7.preference.PreferenceCategory
        android:title="Other">

        <android.support.v7.preference.Preference
            android:key="pref_key_licenses"
            android:title="Licenses"/>

        <android.support.v7.preference.Preference
            android:key="pref_key_privacy_policy"
            android:title="Privacy Policy"/>

        <android.support.v7.preference.Preference
            android:key="pref_key_terms_of_service"
            android:title="Terms of Service"/>
    </android.support.v7.preference.PreferenceCategory>

    <!--Account Settings-->
    <android.support.v7.preference.PreferenceCategory
        android:title="Account">

        <android.support.v7.preference.Preference
            android:key="pref_key_logout"
            android:title="Logout"/>

        <android.support.v7.preference.Preference
            android:key="pref_key_delete_account"
            android:title="Delete Account"/>
    </android.support.v7.preference.PreferenceCategory>

</android.support.v7.preference.PreferenceScreen>

SettingsActivity.java

public class SettingsActivity extends AppCompatActivity {


    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_settings);

        if (savedInstanceState == null) {
            Fragment preferenceFragment = new SettingsFragment();
            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            ft.add(R.id.pref_container, preferenceFragment);
            ft.commit();
        }
    }
}

SettingsFragment.java

/**
 * The Preference Fragment which shows the Preferences as a List and handles the Dialogs for the
 * Preferences.
 */
public class SettingsFragment extends PreferenceFragmentCompat implements Preference.OnPreferenceChangeListener {


    @Override
    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
        addPreferencesFromResource(R.xml.app_preferences);

        Preference licensePref = (Preference)findPreference("pref_key_licenses");
        licensePref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
            @Override
            public boolean onPreferenceClick(Preference preference) {
                startActivity(new Intent(getActivity(), OpenSourceLibsActivity.class));
                return true;
            }
        });

        Preference logoutPref = (Preference)findPreference("pref_key_logout");
        logoutPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
            @Override
            public boolean onPreferenceClick(Preference preference) {
                FirebaseAuth.getInstance().signOut();
                startActivity(new Intent(getActivity(), LoginActivity.class));

                return true;
            }
        });

        /**
         * Bind preference summary to value for lists and sorting list preferences
         */
        bindPreferenceSummaryToValue(findPreference(getString(R.string.pref_name_sort_order_lists)));
        bindPreferenceSummaryToValue(findPreference(getString(R.string.pref_name_default_home_state)));

    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        setPreferenceSummary(preference, newValue);

        if (preference.getKey().equals("pref_sort_order_lists")){
            SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity());
            SharedPreferences.Editor spe = sharedPref.edit();
            spe.putString(Constants.KEY_PREF_SORT_ORDER_LISTS, newValue.toString()).apply();
        }

        if (preference.getKey().equals("pref_default_home_state")){
            SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getActivity());
            SharedPreferences.Editor spe = sharedPref.edit();
            spe.putString(Constants.KEY_PREF_HOME_STATE, newValue.toString()).apply();
        }
        return true;
    }

    private void bindPreferenceSummaryToValue(Preference preference) {
        /* Set the listener to watch for value changes. */
        preference.setOnPreferenceChangeListener(this);
            /* Trigger the listener immediately with the preference's current value. */
        setPreferenceSummary(preference,
                PreferenceManager
                        .getDefaultSharedPreferences(preference.getContext())
                        .getString(preference.getKey(), ""));
    }

    private void setPreferenceSummary(Preference preference, Object value){
        String stringValue = value.toString();

        if (preference instanceof ListPreference){
            ListPreference listPreference = (ListPreference) preference;
            int prefIndex = listPreference.findIndexOfValue(stringValue);

            if (prefIndex >=0){
                preference.setSummary(listPreference.getEntries()[prefIndex]);
            }
        }
    }

}

styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:textColorHint">@color/text_color_tertiary_dark</item>
    </style>    

  <!-- SettingsActivity Theme -->
    <style name="AppTheme.Settings" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="preferenceTheme">@style/PreferenceThemeOverlay.v14.Material</item>
    </style>
  
</resources>