ZenModeBackend gets newest notification policy

Previously, notification policy wouldn't be updated
so behavior zen mode settings pages wouldn't update
when an app changed the notification policy.  Now
notification policy will be updated on updateState of
each AbstractZenModePreferenceController.

Bug: 70662324
Test: make RunSettingsRoboTests -j40
Change-Id: Ibee20e4f27e0c833e05230ea8a3ea2cc75ae6bf0

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

@@ -31,7 +31,6 @@ import android.service.notification.ScheduleCalendar;
 import android.service.notification.ZenModeConfig;
 import android.support.v7.preference.Preference;
 import android.support.v7.preference.PreferenceScreen;
-import android.util.Slog;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.settings.core.PreferenceControllerMixin;
@@ -54,6 +53,7 @@ abstract public class AbstractZenModePreferenceController extends
     final private NotificationManager mNotificationManager;
     protected static ZenModeConfigWrapper mZenModeConfigWrapper;
     protected MetricsFeatureProvider mMetricsFeatureProvider;
+    protected final ZenModeBackend mBackend;
 
     public AbstractZenModePreferenceController(Context context, String key,
             Lifecycle lifecycle) {
@@ -68,6 +68,7 @@ abstract public class AbstractZenModePreferenceController extends
 
         final FeatureFactory featureFactory = FeatureFactory.getFactory(mContext);
         mMetricsFeatureProvider = featureFactory.getMetricsFeatureProvider();
+        mBackend = ZenModeBackend.getInstance(context);
     }
 
     @Override
@@ -90,6 +91,14 @@ abstract public class AbstractZenModePreferenceController extends
         }
     }
 
+    @Override
+    public void updateState(Preference preference) {
+        super.updateState(preference);
+
+        mBackend.updatePolicy();
+        mBackend.updateZenMode();
+    }
+
     protected NotificationManager.Policy getPolicy() {
         return mNotificationManager.getNotificationPolicy();
     }
@@ -99,8 +108,8 @@ abstract public class AbstractZenModePreferenceController extends
     }
 
     protected int getZenMode() {
-        return Settings.Global.getInt(mContext.getContentResolver(),
-                Settings.Global.ZEN_MODE, 0);
+        return Settings.Global.getInt(mContext.getContentResolver(), Settings.Global.ZEN_MODE,
+                mBackend.mZenMode);
     }
 
     class SettingObserver extends ContentObserver {
@@ -188,7 +197,6 @@ abstract public class AbstractZenModePreferenceController extends
                     }
                 }
 
-
                 return endTimeMs;
             }