Merge "[Settings] Refactor: Add RegionAndNumberingSystemPickerFragmet" into main

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

@@ -0,0 +1,118 @@
+/**
+ * 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 android.app.Activity;
+import android.content.Context;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.PreferenceCategory;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.android.internal.app.LocaleHelper;
+import com.android.internal.app.LocaleStore;
+import com.android.internal.app.SystemLocaleCollector;
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settings.widget.PreferenceCategoryController;
+import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+
+import com.google.android.material.appbar.AppBarLayout;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+
+/**
+ * A locale picker fragment to show region country and numbering system.
+ *
+ * <p>It shows suggestions at the top, then the rest of the locales.
+ * Allows the user to search for locales using both their native name and their name in the
+ * default locale.</p>
+ */
+public class RegionAndNumberingSystemPickerFragment extends DashboardFragment {
+    private static final String TAG = "RegionAndNumberingSystemPickerFragment";
+
+    private RecyclerView mRecyclerView;
+    private AppBarLayout mAppBarLayout;
+    private Activity mActivity;
+
+    @Override
+    public void onCreate(@NonNull Bundle icicle) {
+        super.onCreate(icicle);
+        mActivity = getActivity();
+        if (mActivity.isFinishing()) {
+            return;
+        }
+    }
+
+    @Override
+    public @NonNull View onCreateView(@NonNull LayoutInflater inflater,
+            @NonNull ViewGroup container, @NonNull Bundle savedInstanceState) {
+        mAppBarLayout = mActivity.findViewById(R.id.app_bar);
+        mAppBarLayout.setExpanded(false /*expanded*/, false /*animate*/);
+        return super.onCreateView(inflater, container, savedInstanceState);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        mRecyclerView = view.findViewById(R.id.recycler_view);
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.system_language_picker;
+    }
+
+    @Override
+    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
+        return buildPreferenceControllers(context, getSettingsLifecycle());
+    }
+
+    private List<AbstractPreferenceController> buildPreferenceControllers(
+            @NonNull Context context, @Nullable Lifecycle lifecycle) {
+        final List<AbstractPreferenceController> controllers = new ArrayList<>();
+
+        // TODO: b/30358431 - Add preference of region locales.
+
+        return controllers;
+    }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.system_language_picker);
+
+    @Override
+    public int getMetricsCategory() {
+        return 0;
+    }
+}