[Regional Pref] 1. Add metrics for user changes the Temperature unit 2.

Refactor to Settings design

Bug: 275003276
Bug: 264483854
Change-Id: Ib886ace45db8cfd7dd0f468d03a0aa0551f1f5c4

src/com/android/settings/regionalpreferences/RegionalPreferenceListBasePreferenceController.java

@@ -0,0 +1,103 @@
+/**
+ * Copyright (C) 2023 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.regionalpreferences;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+import android.util.Log;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.widget.TickButtonPreference;
+import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
+
+/** A base controller for handling all regional preferences controllers. */
+public abstract class RegionalPreferenceListBasePreferenceController extends
+        BasePreferenceController {
+
+    private final MetricsFeatureProvider mMetricsFeatureProvider;
+    private PreferenceCategory mPreferenceCategory;
+
+    public RegionalPreferenceListBasePreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+        mMetricsFeatureProvider = FeatureFactory.getFactory(context).getMetricsFeatureProvider();
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreferenceCategory = screen.findPreference(getPreferenceCategoryKey());
+        initPreferences();
+    }
+
+    private void initPreferences() {
+        if (mPreferenceCategory == null) {
+            return;
+        }
+
+        String[] unitValues = getUnitValues();
+
+        for (int i = 0; i < unitValues.length; i++) {
+            TickButtonPreference pref = new TickButtonPreference(mContext);
+            mPreferenceCategory.addPreference(pref);
+            final String item = unitValues[i];
+            pref.setTitle(getPreferenceTitle(item));
+            pref.setKey(item);
+            pref.setOnPreferenceClickListener(clickedPref -> {
+                setSelected(pref);
+                RegionalPreferencesDataUtils.savePreference(mContext, getExtensionTypes(), item);
+                mMetricsFeatureProvider.action(mContext, getMetricsActionKey(), item);
+                return true;
+            });
+            String value = RegionalPreferencesDataUtils.getDefaultUnicodeExtensionData(mContext,
+                    getExtensionTypes());
+            pref.setSelected(!value.isEmpty() && item.equals(value));
+        }
+    }
+
+    private void setSelected(TickButtonPreference preference) {
+        for (int i = 0; i < mPreferenceCategory.getPreferenceCount(); i++) {
+            TickButtonPreference pref = (TickButtonPreference) mPreferenceCategory.getPreference(i);
+            if (pref.getKey().equals(preference.getKey())) {
+                pref.setSelected(true);
+                continue;
+            }
+            pref.setSelected(false);
+        }
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return AVAILABLE;
+    }
+
+    protected abstract String getPreferenceTitle(String item);
+
+    protected abstract String getPreferenceCategoryKey();
+
+    protected abstract String getExtensionTypes();
+
+    protected abstract String[] getUnitValues();
+
+    protected abstract int getMetricsActionKey();
+
+
+}