Update key visual changes for one handed mode settings

Follow new visual UI to change the design.

Bug: 175851783
Bug: 188868459
Bug: 189001678

Test: manual verified on Settings > System > Gesture page
> System controls page
Test: make RunSettingsRoboTests ROBOTEST_FILTER=
      "com.android.settings.gestures
      .OneHandedEnablePreferenceControllerTest"
Test: make RunSettingsRoboTests ROBOTEST_FILTER=
      "com.android.settings.gestures
      .OneHandedMainSwitchPreferenceControllerTest"
Test: make RunSettingsRoboTests ROBOTEST_FILTER=
      "com.android.settings.gestures
      .OneHandedActionPullDownPrefControllerTest"
Test: make RunSettingsRoboTests ROBOTEST_FILTER=
      "com.android.settings.gestures
      .OneHandedActionShowNotificationPrefControllerTest"

Change-Id: I86535fd9f49726c7234353032b950640346a02c5

src/com/android/settings/gestures/OneHandedMainSwitchPreferenceController.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.gestures;
+
+import android.content.Context;
+
+import com.android.settings.widget.SettingsMainSwitchPreferenceController;
+
+/**
+ * The controller to handle one-handed mode main switch enable or disable state.
+ **/
+public class OneHandedMainSwitchPreferenceController extends
+        SettingsMainSwitchPreferenceController {
+
+    public OneHandedMainSwitchPreferenceController(Context context, String preferenceKey) {
+        super(context, preferenceKey);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return (OneHandedSettingsUtils.isSupportOneHandedMode()
+                && OneHandedSettingsUtils.getNavigationBarMode(mContext) != 0 /* 3-button mode */)
+                ? AVAILABLE : DISABLED_DEPENDENT_SETTING;
+    }
+
+    @Override
+    public boolean isChecked() {
+        return OneHandedSettingsUtils.isOneHandedModeEnabled(mContext);
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        if (isChecked) {
+            // Set default value for TapsAppToExit and Timeout
+            OneHandedSettingsUtils.setTapsAppToExitEnabled(mContext, true);
+            OneHandedSettingsUtils.setTimeoutValue(mContext,
+                    OneHandedSettingsUtils.OneHandedTimeout.MEDIUM.getValue());
+        }
+        OneHandedSettingsUtils.setOneHandedModeEnabled(mContext, isChecked);
+        return true;
+    }
+}