[TF] show user ID / DC ID in profile info

Display-only port of Nekogram's profile ID/DC line: a third line
under the avatar info showing "ID: <id>, DC: <dc>" (or "<date>, DC:
<dc>" when the avatar is pulled open). Long-press copies the ID
to the clipboard and shows a bulletin.

- Add tw/nekomimi/nekogram/SimpleTextViewSwitcher helper (a
  ViewSwitcher whose children are SimpleTextView, with a
  setText(CharSequence, boolean) for animated updates).
- Wire an idTextView into ProfileActivity's avatar container with
  long-press-to-copy, and keep it in sync via updateIdText(...)
  across page selection, photo deletion, chatInfo load and the
  pulled-down / pulled-up states.
- Integrate idTextView into the existing avatar collapse/expand,
  scroll, color-blending and search-mode transitions so the new
  line animates alongside the online subtitle.

Author: Kartatz

TMessagesProj/src/main/java/org/telegram/ui/GeneralSettingsActivity.java

@@ -2,6 +2,7 @@
 
 import static org.telegram.messenger.LocaleController.getString;
 
+import android.app.Activity;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.view.Gravity;
@@ -10,6 +11,7 @@
 
 import org.telegram.messenger.MessagesController;
 import org.telegram.messenger.R;
+import org.telegram.messenger.ApplicationLoader;
 import org.telegram.ui.ActionBar.ActionBar;
 import org.telegram.ui.ActionBar.BackDrawable;
 import org.telegram.ui.ActionBar.BaseFragment;
@@ -55,6 +57,12 @@ private void fillItems(ArrayList<UItem> items, UniversalAdapter adapter) {
             MessagesController.getInstance(currentAccount).getMainSettings().getBoolean("ghostMode", false));
         ghostMode.subtext = getString(R.string.GhostModeInfo);
         items.add(ghostMode);
+
+        SharedPreferences mainConfig = ApplicationLoader.applicationContext.getSharedPreferences("mainconfig", Activity.MODE_PRIVATE);
+        UItem displayExtraProfileInfo = UItem.asCheck(1, getString(R.string.DisplayExtraProfileInformation)).setChecked(
+            mainConfig.getBoolean("displayExtraProfileInformation", false));
+        displayExtraProfileInfo.subtext = getString(R.string.DisplayExtraProfileInformationInfo);
+        items.add(displayExtraProfileInfo);
     }
 
     private void onClick(UItem item, View view, int position, float x, float y) {
@@ -69,6 +77,14 @@ private void onClick(UItem item, View view, int position, float x, float y) {
             if (newValue) {
                 BulletinFactory.of(this).createSimpleBulletin(R.raw.chats_infotip, getString(R.string.GhostMode)).show();
             }
+        } else if (item.id == 1) {
+            SharedPreferences prefs = ApplicationLoader.applicationContext.getSharedPreferences("mainconfig", Activity.MODE_PRIVATE);
+            boolean newValue = !prefs.getBoolean("displayExtraProfileInformation", false);
+            prefs.edit().putBoolean("displayExtraProfileInformation", newValue).apply();
+            if (view instanceof TextCheckCell) {
+                ((TextCheckCell) view).setChecked(newValue);
+            }
+            listView.adapter.update(false);
         }
     }