优化

app/src/main/java/io/legado/app/ui/about/AboutFragment.kt

@@ -56,6 +56,7 @@ class AboutFragment : PreferenceFragmentCompat() {
             "disclaimer" -> requireContext().openUrl(disclaimerUrl)
             "qq" -> showQqGroups()
             "gzGzh" -> requireContext().sendToClip(getString(R.string.legado_gzh))
+            "tg" -> openUrl(R.string.tg_url)
         }
         return super.onPreferenceTreeClick(preference)
     }

app/src/main/res/values/pref_key_value.xml

@@ -21,4 +21,5 @@
     <string name="home_page_url" translatable="false">https://gedoor.github.io/MyBookshelf/</string>
     <string name="latest_release_url" translatable="false">https://github.com/gedoor/legado/releases/latest</string>
     <string name="latest_release_api" translatable="false">https://api.github.com/repos/gedoor/legado/releases/latest</string>
+    <string name="tg_url" translatable="false">https://t.me/joinchat/S_beh0a2BD-g01HCHUZOfQ</string>
 </resources>

app/src/main/res/xml/about.xml

@@ -51,6 +51,12 @@
             android:summary="@string/this_github_url"
             app:iconSpaceReserved="false" />
 
+        <io.legado.app.ui.widget.prefs.Preference
+            android:key="tg"
+            android:title="TG"
+            android:summary="@string/tg_url"
+            app:iconSpaceReserved="false" />
+
         <io.legado.app.ui.widget.prefs.Preference
             android:key="sourceRuleSummary"
             android:title="@string/source_rule_s"