1 /*
2  * Copyright (C) 2017 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 package com.android.networkrecommendation.util;
17 
18 import android.content.res.Resources.Theme;
19 import android.graphics.drawable.Drawable;
20 import android.net.NetworkBadging;
21 import android.net.RssiCurve;
22 import android.net.ScoredNetwork;
23 import android.net.wifi.WifiConfiguration;
24 import android.net.wifi.WifiManager;
25 import android.os.Bundle;
26 import android.os.UserManager;
27 import android.support.annotation.VisibleForTesting;
28 
29 /**
30  * This class provides access to @SystemApi methods that were added in Android O and not yet
31  * available in using the --config robo_experimental configuration when testing.
32  */
33 public class RoboCompatUtil {
34 
35     /**
36      * {@link UserManager#ACTION_USER_RESTRICTIONS_CHANGED}. TODO: remove when string is available
37      * in experimental.
38      */
39     public static final String ACTION_USER_RESTRICTIONS_CHANGED =
40             "android.os.action.USER_RESTRICTIONS_CHANGED";
41 
42     private static RoboCompatUtil mRoboCompatUtil;
43 
RoboCompatUtil()44     private RoboCompatUtil() {}
45 
46     /** Get a shared instance of this utility. */
getInstance()47     public static synchronized RoboCompatUtil getInstance() {
48         if (mRoboCompatUtil == null) {
49             mRoboCompatUtil = new RoboCompatUtil();
50         }
51         return mRoboCompatUtil;
52     }
53 
54     @VisibleForTesting
setInstanceForTesting(RoboCompatUtil roboCompatUtil)55     public static void setInstanceForTesting(RoboCompatUtil roboCompatUtil) {
56         mRoboCompatUtil = roboCompatUtil;
57     }
58 
59     /** Wraps WifiManager.connect. */
connectToWifi(WifiManager wifiManager, WifiConfiguration wifiConfiguration)60     public void connectToWifi(WifiManager wifiManager, WifiConfiguration wifiConfiguration) {
61         wifiManager.connect(wifiConfiguration, null /* actionListener */);
62     }
63 
64     /** Wraps WifiConfiguration.hasNoInternetAccess. */
65     @SuppressWarnings("unchecked")
hasNoInternetAccess(WifiConfiguration wifiConfiguration)66     public boolean hasNoInternetAccess(WifiConfiguration wifiConfiguration) {
67         return wifiConfiguration.hasNoInternetAccess();
68     }
69 
70     /** Wraps WifiConfiguration.isNoInternetAccessExpected. */
isNoInternetAccessExpected(WifiConfiguration wifiConfiguration)71     public boolean isNoInternetAccessExpected(WifiConfiguration wifiConfiguration) {
72         return wifiConfiguration.isNoInternetAccessExpected();
73     }
74 
75     /** Wraps WifiConfiguration.useExternalScores. */
useExternalScores(WifiConfiguration wifiConfiguration)76     public boolean useExternalScores(WifiConfiguration wifiConfiguration) {
77         return wifiConfiguration.useExternalScores;
78     }
79 
80     /** Wraps WifiConfiguration.isPasspoint. */
isPasspoint(WifiConfiguration wifiConfiguration)81     public boolean isPasspoint(WifiConfiguration wifiConfiguration) {
82         return wifiConfiguration.isPasspoint();
83     }
84 
85     /** Wraps NetworkBadging.getWifiIcon. */
getWifiIcon(int signalLevel, int badging, Theme theme)86     public Drawable getWifiIcon(int signalLevel, int badging, Theme theme) {
87         return NetworkBadging.getWifiIcon(signalLevel, badging, theme);
88     }
89 
90     /** Wraps RssiCurve.activeNetworkRssiBoost. */
activeNetworkRssiBoost(RssiCurve curve)91     public int activeNetworkRssiBoost(RssiCurve curve) {
92         return curve.activeNetworkRssiBoost;
93     }
94 
95     /** Wraps ScoredNetwork.attributes. */
attributes(ScoredNetwork scoredNetwork)96     public Bundle attributes(ScoredNetwork scoredNetwork) {
97         return scoredNetwork.attributes;
98     }
99 }
100