Add silent status bar icon setting

Test: atest
Bug: 123419917
Change-Id: I40fe580b76589c45a70365c09a966a76b5bc882b

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

@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2019 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.notification;
+
+import static android.provider.Settings.Secure.NOTIFICATION_NEW_INTERRUPTION_MODEL;
+
+import android.content.Context;
+import android.os.UserHandle;
+import android.provider.Settings;
+
+import com.android.settings.core.TogglePreferenceController;
+
+public class SilentStatusBarPreferenceController extends TogglePreferenceController {
+
+    private static final String KEY = "hide_silent_icons";
+    private static final int MY_USER_ID = UserHandle.myUserId();
+    private final NotificationBackend mBackend;
+
+    public SilentStatusBarPreferenceController(Context context) {
+        super(context, KEY);
+        mBackend = new NotificationBackend();
+    }
+
+    @Override
+    public boolean isChecked() {
+        return mBackend.shouldHideSilentStatusBarIcons(mContext);
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        mBackend.setHideSilentStatusIcons(isChecked);
+        return true;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return Settings.Secure.getInt(
+                mContext.getContentResolver(), NOTIFICATION_NEW_INTERRUPTION_MODEL, 1) != 0
+                ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+    }
+
+}
+
+