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      1 /*
      2  * Copyright (C) 2016 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.launcher3.util;
     18 
     19 import android.content.pm.ApplicationInfo;
     20 import android.content.pm.PackageManager;
     21 
     22 import com.android.launcher3.Utilities;
     23 
     24 /**
     25  * Utility methods using package manager
     26  */
     27 public class PackageManagerHelper {
     28 
     29     private static final int FLAG_SUSPENDED = 1<<30;
     30 
     31     /**
     32      * Returns true if the app can possibly be on the SDCard. This is just a workaround and doesn't
     33      * guarantee that the app is on SD card.
     34      */
     35     public static boolean isAppOnSdcard(PackageManager pm, String packageName) {
     36         return isAppEnabled(pm, packageName, PackageManager.GET_UNINSTALLED_PACKAGES);
     37     }
     38 
     39     public static boolean isAppEnabled(PackageManager pm, String packageName) {
     40         return isAppEnabled(pm, packageName, 0);
     41     }
     42 
     43     public static boolean isAppEnabled(PackageManager pm, String packageName, int flags) {
     44         try {
     45             ApplicationInfo info = pm.getApplicationInfo(packageName, flags);
     46             return info != null && info.enabled;
     47         } catch (PackageManager.NameNotFoundException e) {
     48             return false;
     49         }
     50     }
     51 
     52     public static boolean isAppSuspended(PackageManager pm, String packageName) {
     53         try {
     54             ApplicationInfo info = pm.getApplicationInfo(packageName, 0);
     55             return info != null && isAppSuspended(info);
     56         } catch (PackageManager.NameNotFoundException e) {
     57             return false;
     58         }
     59     }
     60 
     61     public static boolean isAppSuspended(ApplicationInfo info) {
     62         // The value of FLAG_SUSPENDED was reused by a hidden constant
     63         // ApplicationInfo.FLAG_PRIVILEGED prior to N, so only check for suspended flag on N
     64         // or later.
     65         if (Utilities.ATLEAST_N) {
     66             return (info.flags & FLAG_SUSPENDED) != 0;
     67         } else {
     68             return false;
     69         }
     70     }
     71 }
     72