1 /*
2  * Copyright (C) 2020 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.network.ims;
18 
19 import android.telephony.ims.ImsMmTelManager;
20 import android.util.Log;
21 
22 
23 /**
24  * An {@link ImsQuery} for accessing IMS tty on VoLte stat
25  */
26 public class ImsQueryTtyOnVolteStat implements ImsQuery {
27 
28     private static final String LOG_TAG = "QueryTtyOnVolteStat";
29 
30     /**
31      * Constructor
32      * @param subId subscription id
33      */
ImsQueryTtyOnVolteStat(int subId)34     public ImsQueryTtyOnVolteStat(int subId) {
35         mSubId = subId;
36     }
37 
38     private volatile int mSubId;
39 
40     /**
41      * Implementation of interface {@link ImsQuery#query()}
42      *
43      * @return result of query
44      */
query()45     public boolean query() {
46         try {
47             final ImsMmTelManager imsMmTelManager =
48                     ImsMmTelManager.createForSubscriptionId(mSubId);
49             return imsMmTelManager.isTtyOverVolteEnabled();
50         } catch (IllegalArgumentException exception) {
51             Log.w(LOG_TAG, "fail to get VoLte Tty Stat. subId=" + mSubId, exception);
52         }
53         return false;
54     }
55 }
56