Use MainSwitchPreference on Bubbles, Screen Saver and

One-Handed mode pages.

Fixes: 178679876
Fixes: 177968619
Test: robotest and see the UIs.
Change-Id: Ic62c7464a71e5410ece5d1db7578c522e1babedc

src/com/android/settings/widget/SettingsMainSwitchPreferenceController.java

@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2021 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.widget;
+
+import android.content.Context;
+import android.widget.Switch;
+
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.core.TogglePreferenceController;
+import com.android.settingslib.widget.MainSwitchPreference;
+import com.android.settingslib.widget.OnMainSwitchChangeListener;
+
+/**
+ * Preference controller for MainSwitchPreference.
+ */
+public abstract class SettingsMainSwitchPreferenceController extends
+        TogglePreferenceController implements OnMainSwitchChangeListener {
+
+    protected MainSwitchPreference mSwitchPreference;
+
+    public SettingsMainSwitchPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        final Preference pref = screen.findPreference(getPreferenceKey());
+        if (pref != null && pref instanceof MainSwitchPreference) {
+            mSwitchPreference = (MainSwitchPreference) pref;
+            mSwitchPreference.addOnSwitchChangeListener(this);
+        }
+    }
+
+    @Override
+    public void onSwitchChanged(Switch switchView, boolean isChecked) {
+        mSwitchPreference.setChecked(isChecked);
+        setChecked(isChecked);
+    }
+}