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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.settings.notification;
     18 
     19 import android.content.Context;
     20 import android.media.AudioManager;
     21 
     22 import com.android.internal.annotations.VisibleForTesting;
     23 import com.android.settings.Utils;
     24 import com.android.settings.notification.VolumeSeekBarPreference.Callback;
     25 import com.android.settingslib.core.lifecycle.Lifecycle;
     26 
     27 public class NotificationVolumePreferenceController extends
     28     RingVolumePreferenceController {
     29 
     30     private static final String KEY_NOTIFICATION_VOLUME = "notification_volume";
     31     private AudioHelper mHelper;
     32 
     33     public NotificationVolumePreferenceController(Context context, Callback callback,
     34         Lifecycle lifecycle) {
     35         this(context, callback, lifecycle, new AudioHelper(context));
     36     }
     37 
     38     @VisibleForTesting
     39     NotificationVolumePreferenceController(Context context,
     40         Callback callback, Lifecycle lifecycle, AudioHelper helper) {
     41         super(context, callback, lifecycle);
     42         mHelper = helper;
     43     }
     44 
     45 
     46     @Override
     47     public boolean isAvailable() {
     48         return !Utils.isVoiceCapable(mContext) && !mHelper.isSingleVolume();
     49     }
     50 
     51     @Override
     52     public String getPreferenceKey() {
     53         return KEY_NOTIFICATION_VOLUME;
     54     }
     55 
     56     @Override
     57     public int getAudioStream() {
     58         return AudioManager.STREAM_NOTIFICATION;
     59     }
     60 
     61     @Override
     62     public int getMuteIcon() {
     63         return com.android.internal.R.drawable.ic_audio_ring_notif_mute;
     64     }
     65 
     66 }
     67