Updates to automatic rule pages in Settings

- Re-added metrics for zen behavior preference controllers
- Dialogs in zen mode settings are rotate-friendly
- Automatic rules are refreshed on update state
- User-created (and default) automatic rules are always priority only and user cannot change this
- Automatic rules redesigned to have headers

Test: make ROBOTEST_FILTER=ZenModeAutomaticRulesPreferenceControllerTest RunSettingsRoboTests -j40
Bug: 63077372
Fixes: 68324465
Fixes: 69057696
Change-Id: I163acef2715dd4e60bfc08207f0e22352c4c0e28

src/com/android/settings/notification/ZenModeScheduleRuleSettings.java

@@ -42,6 +42,7 @@ import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settingslib.core.AbstractPreferenceController;
 
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.List;
@@ -76,21 +77,6 @@ public class ZenModeScheduleRuleSettings extends ZenModeRuleSettingsBase {
         return R.xml.zen_mode_schedule_rule_settings;
     }
 
-    @Override
-    protected List<AbstractPreferenceController> getPreferenceControllers(Context context) {
-        return null;
-    }
-
-    @Override
-    protected String getZenModeDependency() {
-        return mDays.getKey();
-    }
-
-    @Override
-    protected int getEnabledToastText() {
-        return R.string.zen_schedule_rule_enabled_toast;
-    }
-
     @Override
     protected void onCreateInternal() {
         final PreferenceScreen root = getPreferenceScreen();
@@ -208,6 +194,20 @@ public class ZenModeScheduleRuleSettings extends ZenModeRuleSettingsBase {
         updateEndSummary();
     }
 
+
+    @Override
+    protected List<AbstractPreferenceController> getPreferenceControllers(Context context) {
+        List<AbstractPreferenceController> controllers = new ArrayList<>();
+        mHeader = new ZenAutomaticRuleHeaderPreferenceController(context, this,
+                getLifecycle());
+        mSwitch = new ZenAutomaticRuleSwitchPreferenceController(context, this,
+                R.string.zen_schedule_rule_enabled_toast, getLifecycle());
+
+        controllers.add(mHeader);
+        controllers.add(mSwitch);
+        return controllers;
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.NOTIFICATION_ZEN_MODE_SCHEDULE_RULE;