1 /*
2  * Copyright (C) 2018 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.permissioncontroller.role.utils;
18 
19 import android.content.Context;
20 import android.content.pm.ApplicationInfo;
21 import android.content.pm.PackageManager;
22 import android.os.UserHandle;
23 
24 import androidx.annotation.NonNull;
25 import androidx.annotation.Nullable;
26 
27 /**
28  * Utility methods about application packages.
29  */
30 public final class PackageUtils {
31 
PackageUtils()32     private PackageUtils() {}
33 
34     /**
35      * Retrieve the {@link ApplicationInfo} of an application.
36      *
37      * @param packageName the package name of the application
38      * @param context the {@code Context} to retrieve system services
39      *
40      * @return the {@link ApplicationInfo} of the application, or {@code null} if not found
41      */
42     @Nullable
getApplicationInfo(@onNull String packageName, @NonNull Context context)43     public static ApplicationInfo getApplicationInfo(@NonNull String packageName,
44             @NonNull Context context) {
45         PackageManager packageManager = context.getPackageManager();
46         try {
47             return packageManager.getApplicationInfo(packageName,
48                     PackageManager.MATCH_DIRECT_BOOT_AWARE
49                             | PackageManager.MATCH_DIRECT_BOOT_UNAWARE);
50         } catch (PackageManager.NameNotFoundException e) {
51             return null;
52         }
53     }
54 
55     /**
56      * Retrieve the {@link ApplicationInfo} of an application.
57      *
58      * @param packageName the package name of the application
59      * @param user the user of the application
60      * @param context the {@code Context} to retrieve system services
61      *
62      * @return the {@link ApplicationInfo} of the application, or {@code null} if not found
63      */
64     @Nullable
getApplicationInfoAsUser(@onNull String packageName, @NonNull UserHandle user, @NonNull Context context)65     public static ApplicationInfo getApplicationInfoAsUser(@NonNull String packageName,
66             @NonNull UserHandle user, @NonNull Context context) {
67         return getApplicationInfo(packageName, UserUtils.getUserContext(context, user));
68     }
69 }
70