diff options
Diffstat (limited to 'src/com/android/providers/applications/ApplicationsProvider.java')
| -rw-r--r-- | src/com/android/providers/applications/ApplicationsProvider.java | 702 |
1 files changed, 0 insertions, 702 deletions
diff --git a/src/com/android/providers/applications/ApplicationsProvider.java b/src/com/android/providers/applications/ApplicationsProvider.java deleted file mode 100644 index 128fe2f..0000000 --- a/src/com/android/providers/applications/ApplicationsProvider.java +++ /dev/null @@ -1,702 +0,0 @@ -/* - * Copyright (C) 2009 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 com.android.providers.applications; - -import com.android.internal.content.PackageMonitor; -import com.android.internal.os.PkgUsageStats; - -import android.app.ActivityManager; -import android.app.AlarmManager; -import android.app.PendingIntent; -import android.app.SearchManager; -import android.content.BroadcastReceiver; -import android.content.ComponentName; -import android.content.ContentProvider; -import android.content.ContentResolver; -import android.content.ContentValues; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.UriMatcher; -import android.content.pm.ActivityInfo; -import android.content.pm.ApplicationInfo; -import android.content.pm.PackageManager; -import android.content.pm.ResolveInfo; -import android.content.res.Resources; -import android.database.Cursor; -import android.database.DatabaseUtils; -import android.database.sqlite.SQLiteDatabase; -import android.database.sqlite.SQLiteQueryBuilder; -import android.net.Uri; -import android.os.CancellationSignal; -import android.os.Handler; -import android.os.HandlerThread; -import android.os.Looper; -import android.os.Message; -import android.provider.Applications; -import android.text.TextUtils; -import android.util.Log; - -import java.lang.Runnable; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -import com.google.common.annotations.VisibleForTesting; - -/** - * Fetches the list of applications installed on the phone to provide search suggestions. - * If the functionality of this provider changes, the documentation at - * {@link android.provider.Applications} should be updated. - * - * TODO: this provider should be moved to the Launcher, which contains similar logic to keep an up - * to date list of installed applications. Alternatively, Launcher could be updated to use this - * provider. - */ -public class ApplicationsProvider extends ContentProvider { - - private static final boolean DBG = false; - - private static final String TAG = "ApplicationsProvider"; - - private static final int SEARCH_SUGGEST = 0; - private static final int SHORTCUT_REFRESH = 1; - private static final int SEARCH = 2; - - private static final UriMatcher sURIMatcher = buildUriMatcher(); - - private static final int THREAD_PRIORITY = android.os.Process.THREAD_PRIORITY_BACKGROUND; - - // Messages for mHandler - private static final int MSG_UPDATE_ALL = 0; - private static final int MSG_UPDATE_PACKAGE = 1; - - public static final String _ID = "_id"; - public static final String NAME = "name"; - public static final String DESCRIPTION = "description"; - public static final String PACKAGE = "package"; - public static final String CLASS = "class"; - public static final String ICON = "icon"; - public static final String LAUNCH_COUNT = "launch_count"; - public static final String LAST_RESUME_TIME = "last_resume_time"; - - // A query parameter to refresh application statistics. Used by QSB. - public static final String REFRESH_STATS = "refresh"; - - private static final String APPLICATIONS_TABLE = "applications"; - - private static final String APPLICATIONS_LOOKUP_JOIN = - "applicationsLookup JOIN " + APPLICATIONS_TABLE + " ON" - + " applicationsLookup.source = " + APPLICATIONS_TABLE + "." + _ID; - - private static final HashMap<String, String> sSearchSuggestionsProjectionMap = - buildSuggestionsProjectionMap(false); - private static final HashMap<String, String> sGlobalSearchSuggestionsProjectionMap = - buildSuggestionsProjectionMap(true); - private static final HashMap<String, String> sSearchProjectionMap = - buildSearchProjectionMap(); - - /** - * An in-memory database storing the details of applications installed on - * the device. Populated when the ApplicationsProvider is launched. - */ - private SQLiteDatabase mDb; - - // Handler that runs DB updates. - private Handler mHandler; - - /** - * We delay application updates by this many millis to avoid doing more than one update to the - * applications list within this window. - */ - private static final long UPDATE_DELAY_MILLIS = 1000L; - - private static UriMatcher buildUriMatcher() { - UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH); - matcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, - SEARCH_SUGGEST); - matcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", - SEARCH_SUGGEST); - matcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT, - SHORTCUT_REFRESH); - matcher.addURI(Applications.AUTHORITY, SearchManager.SUGGEST_URI_PATH_SHORTCUT + "/*", - SHORTCUT_REFRESH); - matcher.addURI(Applications.AUTHORITY, Applications.SEARCH_PATH, - SEARCH); - matcher.addURI(Applications.AUTHORITY, Applications.SEARCH_PATH + "/*", - SEARCH); - return matcher; - } - - /** - * Updates applications list when packages are added/removed. - * - * TODO: Maybe this should listen for changes to individual apps instead. - */ - private class MyPackageMonitor extends PackageMonitor { - @Override - public void onSomePackagesChanged() { - postUpdateAll(); - } - - @Override - public void onPackageModified(String packageName) { - postUpdatePackage(packageName); - } - } - - // Broadcast receiver for updating applications list when the locale changes. - private BroadcastReceiver mLocaleChangeReceiver = new BroadcastReceiver() { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - if (Intent.ACTION_LOCALE_CHANGED.equals(action)) { - if (DBG) Log.d(TAG, "locale changed"); - postUpdateAll(); - } - } - }; - - @Override - public boolean onCreate() { - createDatabase(); - // Start thread that runs app updates - HandlerThread thread = new HandlerThread("ApplicationsProviderUpdater", THREAD_PRIORITY); - thread.start(); - mHandler = createHandler(thread.getLooper()); - // Kick off first apps update - postUpdateAll(); - // Listen for package changes - new MyPackageMonitor().register(getContext(), null, true); - // Listen for locale changes - IntentFilter localeFilter = new IntentFilter(Intent.ACTION_LOCALE_CHANGED); - getContext().registerReceiver(mLocaleChangeReceiver, localeFilter); - return true; - } - - @VisibleForTesting - Handler createHandler(Looper looper) { - return new UpdateHandler(looper); - } - - @VisibleForTesting - class UpdateHandler extends Handler { - - public UpdateHandler(Looper looper) { - super(looper); - } - - @Override - public void handleMessage(Message msg) { - switch (msg.what) { - case MSG_UPDATE_ALL: - updateApplicationsList(null); - break; - case MSG_UPDATE_PACKAGE: - updateApplicationsList((String) msg.obj); - break; - default: - Log.e(TAG, "Unknown message: " + msg.what); - break; - } - } - } - - /** - * Posts an update to run on the DB update thread. - */ - private void postUpdateAll() { - // Clear pending updates - mHandler.removeMessages(MSG_UPDATE_ALL); - // Post a new update - Message msg = Message.obtain(); - msg.what = MSG_UPDATE_ALL; - mHandler.sendMessageDelayed(msg, UPDATE_DELAY_MILLIS); - } - - private void postUpdatePackage(String packageName) { - Message msg = Message.obtain(); - msg.what = MSG_UPDATE_PACKAGE; - msg.obj = packageName; - mHandler.sendMessageDelayed(msg, UPDATE_DELAY_MILLIS); - } - - // ---------- - // END ASYC UPDATE CODE - // ---------- - - /** - * Creates an in-memory database for storing application info. - */ - private void createDatabase() { - mDb = SQLiteDatabase.create(null); - mDb.execSQL("CREATE TABLE IF NOT EXISTS " + APPLICATIONS_TABLE + " (" + - _ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + - NAME + " TEXT COLLATE LOCALIZED," + - DESCRIPTION + " description TEXT," + - PACKAGE + " TEXT," + - CLASS + " TEXT," + - ICON + " TEXT," + - LAUNCH_COUNT + " INTEGER DEFAULT 0," + - LAST_RESUME_TIME + " INTEGER DEFAULT 0" + - ");"); - // Needed for efficient update and remove - mDb.execSQL("CREATE INDEX applicationsComponentIndex ON " + APPLICATIONS_TABLE + " (" - + PACKAGE + "," + CLASS + ");"); - // Maps token from the app name to records in the applications table - mDb.execSQL("CREATE TABLE applicationsLookup (" + - "token TEXT," + - "source INTEGER REFERENCES " + APPLICATIONS_TABLE + "(" + _ID + ")," + - "token_index INTEGER" + - ");"); - mDb.execSQL("CREATE INDEX applicationsLookupIndex ON applicationsLookup (" + - "token," + - "source" + - ");"); - // Triggers to keep the applicationsLookup table up to date - mDb.execSQL("CREATE TRIGGER applicationsLookup_update UPDATE OF " + NAME + " ON " + - APPLICATIONS_TABLE + " " + - "BEGIN " + - "DELETE FROM applicationsLookup WHERE source = new." + _ID + ";" + - "SELECT _TOKENIZE('applicationsLookup', new." + _ID + ", new." + NAME + ", ' ', 1);" - + "END"); - mDb.execSQL("CREATE TRIGGER applicationsLookup_insert AFTER INSERT ON " + - APPLICATIONS_TABLE + " " + - "BEGIN " + - "SELECT _TOKENIZE('applicationsLookup', new." + _ID + ", new." + NAME + ", ' ', 1);" - + "END"); - mDb.execSQL("CREATE TRIGGER applicationsLookup_delete DELETE ON " + - APPLICATIONS_TABLE + " " + - "BEGIN " + - "DELETE FROM applicationsLookup WHERE source = old." + _ID + ";" + - "END"); - } - - /** - * This will always return {@link SearchManager#SUGGEST_MIME_TYPE} as this - * provider is purely to provide suggestions. - */ - @Override - public String getType(Uri uri) { - switch (sURIMatcher.match(uri)) { - case SEARCH_SUGGEST: - return SearchManager.SUGGEST_MIME_TYPE; - case SHORTCUT_REFRESH: - return SearchManager.SHORTCUT_MIME_TYPE; - case SEARCH: - return Applications.APPLICATION_DIR_TYPE; - default: - throw new IllegalArgumentException("URL " + uri + " doesn't support querying."); - } - } - - @Override - public Cursor query(Uri uri, String[] projectionIn, String selection, - String[] selectionArgs, String sortOrder) { - return query(uri, projectionIn, selection, selectionArgs, sortOrder, null); - } - - /** - * Queries for a given search term and returns a cursor containing - * suggestions ordered by best match. - */ - @Override - public Cursor query(Uri uri, String[] projectionIn, String selection, - String[] selectionArgs, String sortOrder, CancellationSignal cancellationSignal) { - if (DBG) Log.d(TAG, "query(" + uri + ")"); - - if (!TextUtils.isEmpty(selection)) { - throw new IllegalArgumentException("selection not allowed for " + uri); - } - if (selectionArgs != null && selectionArgs.length != 0) { - throw new IllegalArgumentException("selectionArgs not allowed for " + uri); - } - if (!TextUtils.isEmpty(sortOrder)) { - throw new IllegalArgumentException("sortOrder not allowed for " + uri); - } - - switch (sURIMatcher.match(uri)) { - case SEARCH_SUGGEST: { - String query = null; - if (uri.getPathSegments().size() > 1) { - query = uri.getLastPathSegment().toLowerCase(); - } - if (uri.getQueryParameter(REFRESH_STATS) != null) { - updateUsageStats(); - } - return getSuggestions(query, projectionIn, cancellationSignal); - } - case SHORTCUT_REFRESH: { - String shortcutId = null; - if (uri.getPathSegments().size() > 1) { - shortcutId = uri.getLastPathSegment(); - } - return refreshShortcut(shortcutId, projectionIn); - } - case SEARCH: { - String query = null; - if (uri.getPathSegments().size() > 1) { - query = uri.getLastPathSegment().toLowerCase(); - } - return getSearchResults(query, projectionIn, cancellationSignal); - } - default: - throw new IllegalArgumentException("URL " + uri + " doesn't support querying."); - } - } - - private Cursor getSuggestions(String query, String[] projectionIn, - CancellationSignal cancellationSignal) { - Map<String, String> projectionMap = sSearchSuggestionsProjectionMap; - // No zero-query suggestions or launch times except for global search, - // to avoid leaking info about apps that have been used. - if (hasGlobalSearchPermission()) { - projectionMap = sGlobalSearchSuggestionsProjectionMap; - } else if (TextUtils.isEmpty(query)) { - return null; - } - return searchApplications(query, projectionIn, projectionMap, cancellationSignal); - } - - /** - * Refreshes the shortcut of an application. - * - * @param shortcutId Flattened component name of an activity. - */ - private Cursor refreshShortcut(String shortcutId, String[] projectionIn) { - ComponentName component = ComponentName.unflattenFromString(shortcutId); - if (component == null) { - Log.w(TAG, "Bad shortcut id: " + shortcutId); - return null; - } - SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); - qb.setTables(APPLICATIONS_TABLE); - qb.setProjectionMap(sSearchSuggestionsProjectionMap); - qb.appendWhere("package = ? AND class = ?"); - String[] selectionArgs = { component.getPackageName(), component.getClassName() }; - Cursor cursor = qb.query(mDb, projectionIn, null, selectionArgs, null, null, null); - if (DBG) Log.d(TAG, "Returning " + cursor.getCount() + " results for shortcut refresh."); - return cursor; - } - - private Cursor getSearchResults(String query, String[] projectionIn, - CancellationSignal cancellationSignal) { - return searchApplications(query, projectionIn, sSearchProjectionMap, cancellationSignal); - } - - private Cursor searchApplications(String query, String[] projectionIn, - Map<String, String> columnMap, CancellationSignal cancelationSignal) { - final boolean zeroQuery = TextUtils.isEmpty(query); - SQLiteQueryBuilder qb = new SQLiteQueryBuilder(); - qb.setTables(APPLICATIONS_LOOKUP_JOIN); - qb.setProjectionMap(columnMap); - String orderBy = null; - if (!zeroQuery) { - qb.appendWhere(buildTokenFilter(query)); - } else { - if (hasGlobalSearchPermission()) { - qb.appendWhere(LAST_RESUME_TIME + " > 0"); - } - } - if (!hasGlobalSearchPermission()) { - orderBy = getOrderBy(zeroQuery); - } - // don't return duplicates when there are two matching tokens for an app - String groupBy = APPLICATIONS_TABLE + "." + _ID; - Cursor cursor = qb.query(mDb, projectionIn, null, null, groupBy, null, orderBy, null, - cancelationSignal); - if (DBG) Log.d(TAG, "Returning " + cursor.getCount() + " results for " + query); - return cursor; - } - - private String getOrderBy(boolean zeroQuery) { - // order first by whether it a full prefix match, then by launch - // count (if allowed, frequently used apps rank higher), then name - // MIN(token_index) != 0 is true for non-full prefix matches, - // and since false (0) < true(1), this expression makes sure - // that full prefix matches come first. - StringBuilder orderBy = new StringBuilder(); - if (!zeroQuery) { - orderBy.append("MIN(token_index) != 0, "); - } - - if (hasGlobalSearchPermission()) { - orderBy.append(LAST_RESUME_TIME + " DESC, "); - } - - orderBy.append(NAME); - - return orderBy.toString(); - } - - @SuppressWarnings("deprecation") - private String buildTokenFilter(String filterParam) { - StringBuilder filter = new StringBuilder("token GLOB "); - // NOTE: Query parameters won't work here since the SQL compiler - // needs to parse the actual string to know that it can use the - // index to do a prefix scan. - DatabaseUtils.appendEscapedSQLString(filter, - DatabaseUtils.getHexCollationKey(filterParam) + "*"); - return filter.toString(); - } - - private static HashMap<String, String> buildSuggestionsProjectionMap(boolean forGlobalSearch) { - HashMap<String, String> map = new HashMap<String, String>(); - addProjection(map, Applications.ApplicationColumns._ID, _ID); - addProjection(map, SearchManager.SUGGEST_COLUMN_TEXT_1, NAME); - addProjection(map, SearchManager.SUGGEST_COLUMN_TEXT_2, DESCRIPTION); - addProjection(map, SearchManager.SUGGEST_COLUMN_INTENT_DATA, - "'content://" + Applications.AUTHORITY + "/applications/'" - + " || " + PACKAGE + " || '/' || " + CLASS); - addProjection(map, SearchManager.SUGGEST_COLUMN_ICON_1, ICON); - addProjection(map, SearchManager.SUGGEST_COLUMN_ICON_2, "NULL"); - addProjection(map, SearchManager.SUGGEST_COLUMN_SHORTCUT_ID, - PACKAGE + " || '/' || " + CLASS); - if (forGlobalSearch) { - addProjection(map, SearchManager.SUGGEST_COLUMN_LAST_ACCESS_HINT, - LAST_RESUME_TIME); - } - return map; - } - - private static HashMap<String, String> buildSearchProjectionMap() { - HashMap<String, String> map = new HashMap<String, String>(); - addProjection(map, Applications.ApplicationColumns._ID, _ID); - addProjection(map, Applications.ApplicationColumns.NAME, NAME); - addProjection(map, Applications.ApplicationColumns.ICON, ICON); - addProjection(map, Applications.ApplicationColumns.URI, - "'content://" + Applications.AUTHORITY + "/applications/'" - + " || " + PACKAGE + " || '/' || " + CLASS); - return map; - } - - private static void addProjection(HashMap<String, String> map, String name, String value) { - if (!value.equals(name)) { - value = value + " AS " + name; - } - map.put(name, value); - } - - /** - * Updates the cached list of installed applications. - * - * @param packageName Name of package whose activities to update. - * If {@code null}, all packages are updated. - */ - private synchronized void updateApplicationsList(String packageName) { - if (DBG) Log.d(TAG, "Updating database (packageName = " + packageName + ")..."); - - DatabaseUtils.InsertHelper inserter = - new DatabaseUtils.InsertHelper(mDb, APPLICATIONS_TABLE); - int nameCol = inserter.getColumnIndex(NAME); - int descriptionCol = inserter.getColumnIndex(DESCRIPTION); - int packageCol = inserter.getColumnIndex(PACKAGE); - int classCol = inserter.getColumnIndex(CLASS); - int iconCol = inserter.getColumnIndex(ICON); - int launchCountCol = inserter.getColumnIndex(LAUNCH_COUNT); - int lastResumeTimeCol = inserter.getColumnIndex(LAST_RESUME_TIME); - - Map<String, PkgUsageStats> usageStats = fetchUsageStats(); - - mDb.beginTransaction(); - try { - removeApplications(packageName); - String description = getContext().getString(R.string.application_desc); - // Iterate and find all the activities which have the LAUNCHER category set. - Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); - mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); - if (packageName != null) { - // Limit to activities in the package, if given - mainIntent.setPackage(packageName); - } - final PackageManager manager = getPackageManager(); - List<ResolveInfo> activities = manager.queryIntentActivities(mainIntent, 0); - int activityCount = activities == null ? 0 : activities.size(); - for (int i = 0; i < activityCount; i++) { - ResolveInfo info = activities.get(i); - String title = info.loadLabel(manager).toString(); - String activityClassName = info.activityInfo.name; - if (TextUtils.isEmpty(title)) { - title = activityClassName; - } - - String activityPackageName = info.activityInfo.applicationInfo.packageName; - if (DBG) Log.d(TAG, "activity " + activityPackageName + "/" + activityClassName); - PkgUsageStats stats = usageStats.get(activityPackageName); - int launchCount = 0; - long lastResumeTime = 0; - if (stats != null) { - launchCount = stats.launchCount; - if (stats.componentResumeTimes.containsKey(activityClassName)) { - lastResumeTime = stats.componentResumeTimes.get(activityClassName); - } - } - - String icon = getActivityIconUri(info.activityInfo); - inserter.prepareForInsert(); - inserter.bind(nameCol, title); - inserter.bind(descriptionCol, description); - inserter.bind(packageCol, activityPackageName); - inserter.bind(classCol, activityClassName); - inserter.bind(iconCol, icon); - inserter.bind(launchCountCol, launchCount); - inserter.bind(lastResumeTimeCol, lastResumeTime); - inserter.execute(); - } - mDb.setTransactionSuccessful(); - } finally { - mDb.endTransaction(); - inserter.close(); - } - - if (DBG) Log.d(TAG, "Finished updating database."); - } - - @VisibleForTesting - protected synchronized void updateUsageStats() { - if (DBG) Log.d(TAG, "Update application usage stats."); - Map<String, PkgUsageStats> usageStats = fetchUsageStats(); - - mDb.beginTransaction(); - try { - for (Map.Entry<String, PkgUsageStats> statsEntry : usageStats.entrySet()) { - ContentValues updatedLaunchCount = new ContentValues(); - String packageName = statsEntry.getKey(); - PkgUsageStats stats = statsEntry.getValue(); - updatedLaunchCount.put(LAUNCH_COUNT, stats.launchCount); - - mDb.update(APPLICATIONS_TABLE, updatedLaunchCount, - PACKAGE + " = ?", new String[] { packageName }); - - for (Map.Entry<String, Long> crtEntry: stats.componentResumeTimes.entrySet()) { - ContentValues updatedLastResumeTime = new ContentValues(); - String componentName = crtEntry.getKey(); - updatedLastResumeTime.put(LAST_RESUME_TIME, crtEntry.getValue()); - - mDb.update(APPLICATIONS_TABLE, updatedLastResumeTime, - PACKAGE + " = ? AND " + CLASS + " = ?", - new String[] { packageName, componentName }); - } - } - mDb.setTransactionSuccessful(); - } finally { - mDb.endTransaction(); - } - - if (DBG) Log.d(TAG, "Finished updating application usage stats in database."); - } - - private String getActivityIconUri(ActivityInfo activityInfo) { - int icon = activityInfo.getIconResource(); - if (icon == 0) return null; - Uri uri = getResourceUri(activityInfo.applicationInfo, icon); - return uri == null ? null : uri.toString(); - } - - private void removeApplications(String packageName) { - if (packageName == null) { - mDb.delete(APPLICATIONS_TABLE, null, null); - } else { - mDb.delete(APPLICATIONS_TABLE, PACKAGE + " = ?", new String[] { packageName }); - } - } - - @Override - public Uri insert(Uri uri, ContentValues values) { - throw new UnsupportedOperationException(); - } - - @Override - public int update(Uri uri, ContentValues values, String selection, - String[] selectionArgs) { - throw new UnsupportedOperationException(); - } - - @Override - public int delete(Uri uri, String selection, String[] selectionArgs) { - throw new UnsupportedOperationException(); - } - - private Uri getResourceUri(ApplicationInfo appInfo, int res) { - try { - Resources resources = getPackageManager().getResourcesForApplication(appInfo); - return getResourceUri(resources, appInfo.packageName, res); - } catch (PackageManager.NameNotFoundException e) { - return null; - } catch (Resources.NotFoundException e) { - return null; - } - } - - private static Uri getResourceUri(Resources resources, String appPkg, int res) - throws Resources.NotFoundException { - String resPkg = resources.getResourcePackageName(res); - String type = resources.getResourceTypeName(res); - String name = resources.getResourceEntryName(res); - return makeResourceUri(appPkg, resPkg, type, name); - } - - private static Uri makeResourceUri(String appPkg, String resPkg, String type, String name) - throws Resources.NotFoundException { - Uri.Builder uriBuilder = new Uri.Builder(); - uriBuilder.scheme(ContentResolver.SCHEME_ANDROID_RESOURCE); - uriBuilder.encodedAuthority(appPkg); - uriBuilder.appendEncodedPath(type); - if (!appPkg.equals(resPkg)) { - uriBuilder.appendEncodedPath(resPkg + ":" + name); - } else { - uriBuilder.appendEncodedPath(name); - } - return uriBuilder.build(); - } - - @VisibleForTesting - protected Map<String, PkgUsageStats> fetchUsageStats() { - try { - ActivityManager activityManager = (ActivityManager) - getContext().getSystemService(Context.ACTIVITY_SERVICE); - - if (activityManager != null) { - Map<String, PkgUsageStats> stats = new HashMap<String, PkgUsageStats>(); - PkgUsageStats[] pkgUsageStats = activityManager.getAllPackageUsageStats(); - if (pkgUsageStats != null) { - for (PkgUsageStats pus : pkgUsageStats) { - stats.put(pus.packageName, pus); - } - } - return stats; - } - } catch (Exception e) { - Log.w(TAG, "Could not fetch usage stats", e); - } - return new HashMap<String, PkgUsageStats>(); - } - - @VisibleForTesting - protected PackageManager getPackageManager() { - return getContext().getPackageManager(); - } - - @VisibleForTesting - protected boolean hasGlobalSearchPermission() { - // Only the global-search system is allowed to see the usage stats of - // applications. Without this restriction the ApplicationsProvider - // could leak information about the user's behavior to applications. - return (PackageManager.PERMISSION_GRANTED == - getContext().checkCallingPermission(android.Manifest.permission.GLOBAL_SEARCH)); - } -} |