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 
17 package com.android.tv.settings.device.apps.specialaccess;
18 
19 import android.Manifest;
20 import android.app.AppOpsManager;
21 import android.app.tvsettings.TvSettingsEnums;
22 import android.os.Bundle;
23 
24 import androidx.annotation.Keep;
25 import androidx.annotation.NonNull;
26 import androidx.preference.Preference;
27 import androidx.preference.PreferenceGroup;
28 import androidx.preference.SwitchPreference;
29 import androidx.preference.TwoStatePreference;
30 
31 import com.android.settingslib.applications.ApplicationsState;
32 import com.android.tv.settings.R;
33 
34 /**
35  * Fragment for controlling if apps can monitor app usage
36  */
37 @Keep
38 public class AppUsageAccess extends ManageAppOp
39         implements ManageApplicationsController.Callback {
40 
41     private AppOpsManager mAppOpsManager;
42 
43     @Override
onCreate(Bundle savedInstanceState)44     public void onCreate(Bundle savedInstanceState) {
45         super.onCreate(savedInstanceState);
46         mAppOpsManager = getContext().getSystemService(AppOpsManager.class);
47     }
48 
49     @Override
getAppOpsOpCode()50     public int getAppOpsOpCode() {
51         return AppOpsManager.OP_GET_USAGE_STATS;
52     }
53 
54     @Override
getPermission()55     public String getPermission() {
56         return Manifest.permission.PACKAGE_USAGE_STATS;
57     }
58 
59     @NonNull
60     @Override
bindPreference(@onNull Preference preference, ApplicationsState.AppEntry entry)61     public Preference bindPreference(@NonNull Preference preference,
62             ApplicationsState.AppEntry entry) {
63         final TwoStatePreference switchPref = (SwitchPreference) preference;
64         switchPref.setTitle(entry.label);
65         switchPref.setKey(entry.info.packageName);
66         switchPref.setIcon(entry.icon);
67         switchPref.setOnPreferenceChangeListener((pref, newValue) -> {
68             setAppUsageAccess(entry, (Boolean) newValue);
69             return true;
70         });
71 
72         switchPref.setSummary(getPreferenceSummary(entry));
73         switchPref.setChecked(((PermissionState) entry.extraInfo).isAllowed());
74 
75         return switchPref;
76     }
77 
78     @NonNull
79     @Override
createAppPreference()80     public Preference createAppPreference() {
81         return new SwitchPreference(getPreferenceManager().getContext());
82     }
83 
84     @Override
onCreatePreferences(Bundle savedInstanceState, String rootKey)85     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
86         setPreferencesFromResource(R.xml.app_usage_access, null);
87     }
88 
getPreferenceSummary(ApplicationsState.AppEntry entry)89     private CharSequence getPreferenceSummary(ApplicationsState.AppEntry entry) {
90         if (entry.extraInfo instanceof PermissionState) {
91             return getContext().getText(((PermissionState) entry.extraInfo).isAllowed()
92                     ? R.string.app_permission_summary_allowed
93                     : R.string.app_permission_summary_not_allowed);
94         } else {
95             return null;
96         }
97     }
98 
setAppUsageAccess(ApplicationsState.AppEntry entry, boolean grant)99     private void setAppUsageAccess(ApplicationsState.AppEntry entry, boolean grant) {
100         mAppOpsManager.setMode(AppOpsManager.OP_GET_USAGE_STATS,
101                 entry.info.uid, entry.info.packageName,
102                 grant ? AppOpsManager.MODE_ALLOWED : AppOpsManager.MODE_IGNORED);
103         updateAppList();
104     }
105 
106     @NonNull
107     @Override
getAppPreferenceGroup()108     public PreferenceGroup getAppPreferenceGroup() {
109         return getPreferenceScreen();
110     }
111 
112     @Override
getPageId()113     protected int getPageId() {
114         return TvSettingsEnums.APPS_SPECIAL_APP_ACCESS_USAGE_ACCESS;
115     }
116 }
117