1 
2 /*
3  * Copyright (C) 2014 The Android Open Source Project
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *      http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 package com.android.launcher3.compat;
19 
20 import android.annotation.TargetApi;
21 import android.content.Context;
22 import android.content.SharedPreferences;
23 import android.content.pm.PackageManager;
24 import android.os.Build;
25 import android.os.UserHandle;
26 
27 import com.android.launcher3.Utilities;
28 import com.android.launcher3.util.LongArrayMap;
29 
30 import java.util.ArrayList;
31 import java.util.Collections;
32 import java.util.HashMap;
33 import java.util.List;
34 
35 @TargetApi(Build.VERSION_CODES.LOLLIPOP)
36 public class UserManagerCompatVL extends UserManagerCompatV17 {
37     private static final String USER_CREATION_TIME_KEY = "user_creation_time_";
38 
39     private final PackageManager mPm;
40     private final Context mContext;
41 
UserManagerCompatVL(Context context)42     UserManagerCompatVL(Context context) {
43         super(context);
44         mPm = context.getPackageManager();
45         mContext = context;
46     }
47 
48     @Override
enableAndResetCache()49     public void enableAndResetCache() {
50         synchronized (this) {
51             mUsers = new LongArrayMap<>();
52             mUserToSerialMap = new HashMap<>();
53             List<UserHandle> users = mUserManager.getUserProfiles();
54             if (users != null) {
55                 for (UserHandle user : users) {
56                     long serial = mUserManager.getSerialNumberForUser(user);
57                     UserHandleCompat userCompat = UserHandleCompat.fromUser(user);
58                     mUsers.put(serial, userCompat);
59                     mUserToSerialMap.put(userCompat, serial);
60                 }
61             }
62         }
63     }
64 
65     @Override
getUserProfiles()66     public List<UserHandleCompat> getUserProfiles() {
67         synchronized (this) {
68             if (mUsers != null) {
69                 List<UserHandleCompat> users = new ArrayList<>();
70                 users.addAll(mUserToSerialMap.keySet());
71                 return users;
72             }
73         }
74 
75         List<UserHandle> users = mUserManager.getUserProfiles();
76         if (users == null) {
77             return Collections.emptyList();
78         }
79         ArrayList<UserHandleCompat> compatUsers = new ArrayList<UserHandleCompat>(
80                 users.size());
81         for (UserHandle user : users) {
82             compatUsers.add(UserHandleCompat.fromUser(user));
83         }
84         return compatUsers;
85     }
86 
87     @Override
getBadgedLabelForUser(CharSequence label, UserHandleCompat user)88     public CharSequence getBadgedLabelForUser(CharSequence label, UserHandleCompat user) {
89         if (user == null) {
90             return label;
91         }
92         return mPm.getUserBadgedLabel(label, user.getUser());
93     }
94 
95     @Override
getUserCreationTime(UserHandleCompat user)96     public long getUserCreationTime(UserHandleCompat user) {
97         if (Utilities.ATLEAST_MARSHMALLOW) {
98             return mUserManager.getUserCreationTime(user.getUser());
99         }
100         SharedPreferences prefs = Utilities.getPrefs(mContext);
101         String key = USER_CREATION_TIME_KEY + getSerialNumberForUser(user);
102         if (!prefs.contains(key)) {
103             prefs.edit().putLong(key, System.currentTimeMillis()).apply();
104         }
105         return prefs.getLong(key, 0);
106     }
107 }
108 
109