1 /* 2 * Copyright (C) 2019 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.deviceinfo.legal; 18 19 import android.content.Context; 20 import android.content.pm.ModuleInfo; 21 import android.content.pm.PackageManager; 22 23 import androidx.preference.PreferenceGroup; 24 import androidx.preference.PreferenceScreen; 25 26 import com.android.internal.util.ArrayUtils; 27 import com.android.settings.core.BasePreferenceController; 28 29 import java.io.IOException; 30 import java.util.Comparator; 31 import java.util.List; 32 33 public class ModuleLicensesPreferenceController extends BasePreferenceController { ModuleLicensesPreferenceController(Context context, String preferenceKey)34 public ModuleLicensesPreferenceController(Context context, String preferenceKey) { 35 super(context, preferenceKey); 36 } 37 38 @Override getAvailabilityStatus()39 public int getAvailabilityStatus() { 40 return AVAILABLE_UNSEARCHABLE; 41 } 42 43 @Override displayPreference(PreferenceScreen screen)44 public void displayPreference(PreferenceScreen screen) { 45 super.displayPreference(screen); 46 47 PackageManager packageManager = mContext.getPackageManager(); 48 List<ModuleInfo> modules = packageManager.getInstalledModules(0 /* flags */); 49 PreferenceGroup group = screen.findPreference(getPreferenceKey()); 50 modules.stream() 51 .sorted(Comparator.comparing(o -> o.getName().toString())) 52 .filter(new Predicate(mContext)) 53 .forEach(module -> 54 group.addPreference( 55 new ModuleLicensePreference(group.getContext(), module))); 56 } 57 58 static class Predicate implements java.util.function.Predicate<ModuleInfo> { 59 private final Context mContext; 60 Predicate(Context context)61 public Predicate(Context context) { 62 mContext = context; 63 } 64 @Override test(ModuleInfo module)65 public boolean test(ModuleInfo module) { 66 try { 67 return ArrayUtils.contains( 68 ModuleLicenseProvider.getPackageAssetManager( 69 mContext.getPackageManager(), 70 module.getPackageName()) 71 .list(""), 72 ModuleLicenseProvider.GZIPPED_LICENSE_FILE_NAME); 73 } catch (IOException | PackageManager.NameNotFoundException e) { 74 return false; 75 } 76 } 77 } 78 } 79