[Settings] Refactor: Add LocalePickerBaseListPreferenceController

Bug: 377664066
Flag: EXEMPT refactor
Change-Id: I54d212ea520b67263f5b797175936c046a534519

src/com/android/settings/localepicker/LocaleListSearchCallback.java

@@ -0,0 +1,29 @@
+/**
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settings.localepicker;
+
+import androidx.annotation.NonNull;
+
+import com.android.internal.app.LocaleStore;
+
+import java.util.List;
+
+/** Interface for when locale list changes in SearchView . */
+public interface LocaleListSearchCallback {
+
+    /** Callback method for searching changes. */
+    void onSearchListChanged(@NonNull List<LocaleStore.LocaleInfo> localeInfoList);
+}