| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package android.content.pm; |
| |
| import android.Manifest; |
| import android.app.AppGlobals; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.ArraySet; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Helper class for querying installed applications using multiple criteria. |
| * |
| * @hide |
| */ |
| public class AppsQueryHelper { |
| |
| /** |
| * Return apps without launcher icon |
| */ |
| public static int GET_NON_LAUNCHABLE_APPS = 1; |
| |
| /** |
| * Return apps with {@link android.Manifest.permission#INTERACT_ACROSS_USERS} permission |
| */ |
| public static int GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM = 1 << 1; |
| |
| private final Context mContext; |
| private List<ApplicationInfo> mAllApps; |
| |
| public AppsQueryHelper(Context context) { |
| mContext = context; |
| } |
| |
| /** |
| * Return a List of all packages that satisfy a specified criteria. |
| * @param flags search flags. Use any combination of {@link #GET_NON_LAUNCHABLE_APPS}, |
| * {@link #GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM} |
| * @param systemAppsOnly if true, only system apps will be returned |
| * @param user user, whose apps are queried |
| */ |
| public List<String> queryApps(int flags, boolean systemAppsOnly, UserHandle user) { |
| boolean nonLaunchableApps = (flags & GET_NON_LAUNCHABLE_APPS) > 0; |
| boolean interactAcrossUsers = (flags & GET_APPS_WITH_INTERACT_ACROSS_USERS_PERM) > 0; |
| if (mAllApps == null) { |
| mAllApps = getAllApps(user.getIdentifier()); |
| } |
| |
| List<String> result = new ArrayList<>(); |
| if (flags == 0) { |
| final int allAppsSize = mAllApps.size(); |
| for (int i = 0; i < allAppsSize; i++) { |
| final ApplicationInfo appInfo = mAllApps.get(i); |
| if (systemAppsOnly && !appInfo.isSystemApp()) { |
| continue; |
| } |
| result.add(appInfo.packageName); |
| } |
| return result; |
| } |
| |
| if (nonLaunchableApps) { |
| Intent intent = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_LAUNCHER); |
| final List<ResolveInfo> resolveInfos = queryIntentActivitiesAsUser(intent, |
| user.getIdentifier()); |
| |
| ArraySet<String> appsWithLaunchers = new ArraySet<>(); |
| final int resolveInfosSize = resolveInfos.size(); |
| for (int i = 0; i < resolveInfosSize; i++) { |
| appsWithLaunchers.add(resolveInfos.get(i).activityInfo.packageName); |
| } |
| final int allAppsSize = mAllApps.size(); |
| for (int i = 0; i < allAppsSize; i++) { |
| final ApplicationInfo appInfo = mAllApps.get(i); |
| if (systemAppsOnly && !appInfo.isSystemApp()) { |
| continue; |
| } |
| final String packageName = appInfo.packageName; |
| if (!appsWithLaunchers.contains(packageName)) { |
| result.add(packageName); |
| } |
| } |
| } |
| |
| if (interactAcrossUsers) { |
| final List<PackageInfo> packagesHoldingPermissions = getPackagesHoldingPermission( |
| Manifest.permission.INTERACT_ACROSS_USERS, user.getIdentifier()); |
| final int packagesHoldingPermissionsSize = packagesHoldingPermissions.size(); |
| for (int i = 0; i < packagesHoldingPermissionsSize; i++) { |
| PackageInfo packageInfo = packagesHoldingPermissions.get(i); |
| if (systemAppsOnly && !packageInfo.applicationInfo.isSystemApp()) { |
| continue; |
| } |
| if (!result.contains(packageInfo.packageName)) { |
| result.add(packageInfo.packageName); |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| @VisibleForTesting |
| @SuppressWarnings("unchecked") |
| protected List<ApplicationInfo> getAllApps(int userId) { |
| try { |
| return AppGlobals.getPackageManager().getInstalledApplications( |
| PackageManager.GET_UNINSTALLED_PACKAGES |
| | PackageManager.GET_DISABLED_COMPONENTS, userId).getList(); |
| } catch (RemoteException e) { |
| throw new IllegalStateException("Package manager has died", e); |
| } |
| } |
| |
| @VisibleForTesting |
| protected List<ResolveInfo> queryIntentActivitiesAsUser(Intent intent, int userId) { |
| return mContext.getPackageManager() |
| .queryIntentActivitiesAsUser(intent, PackageManager.GET_DISABLED_COMPONENTS |
| | PackageManager.GET_UNINSTALLED_PACKAGES, userId); |
| } |
| |
| @VisibleForTesting |
| @SuppressWarnings("unchecked") |
| protected List<PackageInfo> getPackagesHoldingPermission(String perm, int userId) { |
| try { |
| return AppGlobals.getPackageManager().getPackagesHoldingPermissions(new String[]{perm}, |
| 0, userId).getList(); |
| } catch (RemoteException e) { |
| throw new IllegalStateException("Package manager has died", e); |
| } |
| } |
| } |