show version name in settings

app/src/main/java/com/zeapo/pwdstore/UserPreference.java

@@ -72,6 +72,8 @@ public class UserPreference extends AppCompatActivity {
 
             addPreferencesFromResource(R.xml.preference);
 
+            findPreference("app_version").setSummary(String.format("Version: %s", BuildConfig.VERSION_NAME));
+
             findPreference("openpgp_key_id_pref").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {

app/src/main/res/xml/preference.xml

@@ -108,4 +108,8 @@
             android:summary="@string/pref_clear_clipboard_hint"
             android:title="@string/pref_clear_clipboard_title" />
     </PreferenceCategory>
+
+    <Preference
+        android:key="app_version"
+        android:title="Version" />
 </PreferenceScreen>