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      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.settings.applications;
     18 
     19 import android.content.pm.ApplicationInfo;
     20 import android.content.pm.PackageManager;
     21 import android.content.pm.UserInfo;
     22 import android.os.AsyncTask;
     23 import android.os.UserHandle;
     24 import android.os.UserManager;
     25 
     26 import com.android.settingslib.wrapper.PackageManagerWrapper;
     27 
     28 import java.util.ArrayList;
     29 import java.util.List;
     30 
     31 /**
     32  * Lists apps for current user that fit some criteria specified by includeInCount method
     33  * implementation.
     34  * This class is similar to {@link AppCounter} class, but but builds actual list of apps instead
     35  * of just counting them.
     36  */
     37 public abstract class AppLister extends AsyncTask<Void, Void, List<UserAppInfo>> {
     38     protected final PackageManagerWrapper mPm;
     39     protected final UserManager mUm;
     40 
     41     public AppLister(PackageManagerWrapper packageManager, UserManager userManager) {
     42         mPm = packageManager;
     43         mUm = userManager;
     44     }
     45 
     46     @Override
     47     protected List<UserAppInfo> doInBackground(Void... params) {
     48         final List<UserAppInfo> result = new ArrayList<>();
     49         for (UserInfo user : mUm.getProfiles(UserHandle.myUserId())) {
     50             final List<ApplicationInfo> list =
     51                     mPm.getInstalledApplicationsAsUser(PackageManager.GET_DISABLED_COMPONENTS
     52                             | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS
     53                             | (user.isAdmin() ? PackageManager.MATCH_ANY_USER : 0),
     54                             user.id);
     55             for (ApplicationInfo info : list) {
     56                 if (includeInCount(info)) {
     57                     result.add(new UserAppInfo(user, info));
     58                 }
     59             }
     60         }
     61         return result;
     62     }
     63 
     64     @Override
     65     protected void onPostExecute(List<UserAppInfo> list) {
     66         onAppListBuilt(list);
     67     }
     68 
     69     protected abstract void onAppListBuilt(List<UserAppInfo> list);
     70     protected abstract boolean includeInCount(ApplicationInfo info);
     71 }
     72