1 /*
2  * Copyright (C) 2021 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.car.settings.qc;
18 
19 import android.content.Context;
20 import android.net.ConnectivityManager;
21 import android.net.TetheringManager;
22 import android.net.Uri;
23 import android.net.wifi.WifiManager;
24 
25 import com.android.internal.util.ConcurrentUtils;
26 
27 /**
28  * Helper methods for hotspot related quick controls.
29  */
30 public final class HotspotQCUtils {
HotspotQCUtils()31     private HotspotQCUtils() {
32     }
33 
34     /**
35      * Returns whether or not hotspot is currently enabled.
36      */
isHotspotEnabled(WifiManager wifiManager)37     public static boolean isHotspotEnabled(WifiManager wifiManager) {
38         int state = wifiManager.getWifiApState();
39         return state == WifiManager.WIFI_AP_STATE_ENABLED
40                 || state == WifiManager.WIFI_AP_STATE_ENABLING;
41     }
42 
43     /**
44      * Returns whether or not hotspot is currently busy.
45      */
isHotspotBusy(WifiManager wifiManager)46     public static boolean isHotspotBusy(WifiManager wifiManager) {
47         int state = wifiManager.getWifiApState();
48         return state == WifiManager.WIFI_AP_STATE_ENABLING
49                 || state == WifiManager.WIFI_AP_STATE_DISABLING;
50     }
51 
52     /**
53      * Helper method to enable tethering with {@link TetheringManager.StartTetheringCallback}
54      * on success or failure.
55      */
enableHotspot(TetheringManager tetheringManager, TetheringManager.StartTetheringCallback callback)56     public static void enableHotspot(TetheringManager tetheringManager,
57             TetheringManager.StartTetheringCallback callback) {
58         tetheringManager.startTethering(ConnectivityManager.TETHERING_WIFI,
59                 ConcurrentUtils.DIRECT_EXECUTOR, callback);
60     }
61 
62     /**
63      * Helper method to disable tethering.
64      */
disableHotspot(TetheringManager tetheringManager)65     public static void disableHotspot(TetheringManager tetheringManager) {
66         tetheringManager.stopTethering(ConnectivityManager.TETHERING_WIFI);
67     }
68 
69     /**
70      * Helper method to get the default {@link TetheringManager.StartTetheringCallback} used by
71      * hotspot quick controls.
72      */
getDefaultStartTetheringCallback( Context context, Uri uri)73     public static TetheringManager.StartTetheringCallback getDefaultStartTetheringCallback(
74             Context context, Uri uri) {
75         return new TetheringManager.StartTetheringCallback() {
76             @Override
77             public void onTetheringFailed(final int result) {
78                 context.getContentResolver().notifyChange(uri, /* observer= */null);
79             }
80         };
81     }
82 }
83