[Panlingual] Settings UI revamp - Navigation handling

Entry: Settings > Apps > All apps > any app

- video: https://screencast.googleplex.com/cast/NjM1NjUwODYxNTkwMTE4NHxkOGQzZDM2OS01Nw

Bug: 223090378
Test: local
Change-Id: Ied357b60c103f25540981cc0cb7abadb020f7995

src/com/android/settings/applications/appinfo/AppLocalePreferenceController.java

@@ -17,14 +17,20 @@
 package com.android.settings.applications.appinfo;
 
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
+import android.net.Uri;
+import android.text.TextUtils;
 import android.util.FeatureFlagUtils;
+import android.util.Log;
 
 import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
 
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.applications.AppLocaleUtil;
+import com.android.settings.localepicker.AppLocalePickerActivity;
 
 import java.util.List;
 
@@ -59,6 +65,23 @@ public class AppLocalePreferenceController extends AppInfoPreferenceControllerBa
         return AppLocaleDetails.getSummary(mContext, mParent.getAppEntry().info.packageName);
     }
 
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (TextUtils.equals(preference.getKey(), mPreferenceKey)) {
+            return false;
+        }
+
+        if (mParent != null) {
+            Intent intent = new Intent(mContext, AppLocalePickerActivity.class);
+            intent.setData(Uri.parse("package:" + mParent.getAppEntry().info.packageName));
+            mContext.startActivity(intent);
+            return true;
+        } else {
+            Log.d(TAG, "mParent is null");
+            return false;
+        }
+    }
+
     @VisibleForTesting
     boolean canDisplayLocaleUi() {
         return AppLocaleUtil