Launcher sample code

if (version < 3) { // upgrade 1,2 -> 3 added appWidgetId column db.beginTransaction(); try { // Insert new column for holding appWidgetIds db.execSQL("ALTER TABLE favorites " +"ADD COLUMN appWidgetId INTEGER NOT NULL DEFAULT -1;"); db.setTransactionSuccessful(); version = 3; } catch (SQLException ex) { // Old version remains, which means we wipe old data Log.e(TAG, ex.getMessage(), ex); } finally { db.endTransaction(); } // Convert existing widgets only if table upgrade was successful if (version == 3) { convertWidgets(db); } } /** * Upgrade existing clock and photo frame widgets into their new widget equivalents. */ private void convertWidgets(SQLiteDatabase db) { final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext); final int[] bindSources = new int[] { Favorites.ITEM_TYPE_WIDGET_CLOCK, Favorites.ITEM_TYPE_WIDGET_PHOTO_FRAME, Favorites.ITEM_TYPE_WIDGET_SEARCH, }; final String selectWhere = buildOrWhereString(Favorites.ITEM_TYPE,bindSources); Cursor c = null; db.beginTransaction(); try { // Select and iterate through each matching widget c = db.query(TABLE_FAVORITES, new String[] { Favorites._ID, Favorites.ITEM_TYPE }, selectWhere, null, null, null, null); if (LOGD) Log.d(TAG, "found upgrade cursor count=" + c.getCount()); final ContentValues values = new ContentValues(); while (c != null && c.moveToNext()) { long favoriteId = c.getLong(0); int favoriteType = c.getInt(1); // Allocate and update database with new appWidgetId try { int appWidgetId = mAppWidgetHost.allocateAppWidgetId(); if (LOGD) { Log.d(TAG, "allocated appWidgetId=" + appWidgetId + " for favoriteId=" + favoriteId); } values.clear(); values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_APPWIDGET); values.put(Favorites.APPWIDGET_ID, appWidgetId); // Original widgets might not have valid spans when upgrading if (favoriteType == Favorites.ITEM_TYPE_WIDGET_SEARCH) { values.put(LauncherSettings.Favorites.SPANX, 4); values.put(LauncherSettings.Favorites.SPANY, 1); } else { values.put(LauncherSettings.Favorites.SPANX, 2); values.put(LauncherSettings.Favorites.SPANY, 2); } String updateWhere = Favorites._ID + "=" + favoriteId; db.update(TABLE_FAVORITES, values, updateWhere, null); if (favoriteType == Favorites.ITEM_TYPE_WIDGET_CLOCK) { // TODO: check return value appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, new ComponentName("com.android.alarmclock", "com.android.alarmclock.AnalogAppWidgetProvider")); } else if (favoriteType == Favorites.ITEM_TYPE_WIDGET_PHOTO_FRAME) { // TODO: check return value appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, new ComponentName("com.android.camera", "com.android.camera.PhotoAppWidgetProvider")); } else if (favoriteType == Favorites.ITEM_TYPE_WIDGET_SEARCH) { // TODO: check return value appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, getSearchWidgetProvider()); } } catch (RuntimeException ex) { Log.e(TAG, "Problem allocating appWidgetId", ex); } } db.setTransactionSuccessful(); } catch (SQLException ex) { Log.w(TAG, "Problem while allocating appWidgetIds for existing widgets", ex); } finally { db.endTransaction(); if (c != null) { c.close(); } } } private boolean updateContactsShortcuts(SQLiteDatabase db) { final String selectWhere = buildOrWhereString(Favorites.ITEM_TYPE, new int[] { Favorites.ITEM_TYPE_SHORTCUT }); Cursor c = null; final String actionQuickContact = "com.android.contacts.action.QUICK_CONTACT"; db.beginTransaction(); try { // Select and iterate through each matching widget c = db.query(TABLE_FAVORITES, new String[] { Favorites._ID, Favorites.INTENT }, selectWhere, null, null, null, null); if (c == null) return false; if (LOGD) Log.d(TAG, "found upgrade cursor count=" + c.getCount()); final int idIndex = c.getColumnIndex(Favorites._ID); final int intentIndex = c.getColumnIndex(Favorites.INTENT); while (c.moveToNext()) { long favoriteId = c.getLong(idIndex); final String intentUri = c.getString(intentIndex); if (intentUri != null) { try { final Intent intent = Intent.parseUri(intentUri, 0); android.util.Log.d("Home", intent.toString()); final Uri uri = intent.getData(); if (uri != null) { final String data = uri.toString(); if ((Intent.ACTION_VIEW.equals(intent.getAction()) || actionQuickContact.equals(intent.getAction())) && (data.startsWith("content://contacts/people/") || data.startsWith("content://com.android.contacts/" + "contacts/lookup/"))) { final Intent newIntent = new Intent(actionQuickContact); // When starting from the launcher, start in a new, cleared task // CLEAR_WHEN_TASK_RESET cannot reset the root of a task, so we // clear the whole thing preemptively here since // QuickContactActivity will finish itself when launching other // detail activities. newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); newIntent.putExtra( Launcher.INTENT_EXTRA_IGNORE_LAUNCH_ANIMATION, true); newIntent.setData(uri); // Determine the type and also put that in the shortcut // (that can speed up launch a bit) newIntent.setDataAndType(uri, newIntent.resolveType(mContext)); final ContentValues values = new ContentValues(); values.put(LauncherSettings.Favorites.INTENT, newIntent.toUri(0)); String updateWhere = Favorites._ID + "=" + favoriteId; db.update(TABLE_FAVORITES, values, updateWhere, null); } } } catch (RuntimeException ex) { Log.e(TAG, "Problem upgrading shortcut", ex); } catch (URISyntaxException e) { Log.e(TAG, "Problem upgrading shortcut", e); } } } db.setTransactionSuccessful(); } catch (SQLException ex) { Log.w(TAG, "Problem while upgrading contacts", ex); return false; } finally { db.endTransaction(); if (c != null) { c.close(); } } return true; } private void normalizeIcons(SQLiteDatabase db) { Log.d(TAG, "normalizing icons"); db.beginTransaction(); Cursor c = null; SQLiteStatement update = null; try { boolean logged = false; update = db.compileStatement("UPDATE favorites " + "SET icon=? WHERE _id=?"); c = db.rawQuery("SELECT _id, icon FROM favorites WHERE iconType=" + Favorites.ICON_TYPE_BITMAP, null); final int idIndex = c.getColumnIndexOrThrow(Favorites._ID); final int iconIndex = c.getColumnIndexOrThrow(Favorites.ICON); while (c.moveToNext()) { long id = c.getLong(idIndex); byte[] data = c.getBlob(iconIndex); try { Bitmap bitmap = Utilities.resampleIconBitmap( BitmapFactory.decodeByteArray(data, 0, data.length), mContext); if (bitmap != null) { update.bindLong(1, id); data = ItemInfo.flattenBitmap(bitmap); if (data != null) { update.bindBlob(2, data); update.execute(); } bitmap.recycle(); } } catch (Exception e) { if (!logged) { Log.e(TAG, "Failed normalizing icon " + id, e); } else { Log.e(TAG, "Also failed normalizing icon " + id); } logged = true; } } db.setTransactionSuccessful(); } catch (SQLException ex) { Log.w(TAG, "Problem while allocating appWidgetIds for existing widgets", ex); } finally { db.endTransaction(); if (update != null) { update.close(); } if (c != null) { c.close(); } } } /** * Loads the default set of favorite packages from an xml file. * * @param db The database to write the values into * @param filterContainerId The specific container id of items to load */ private int loadFavorites(SQLiteDatabase db, int workspaceResourceId) { Intent intent = new Intent(Intent.ACTION_MAIN, null); intent.addCategory(Intent.CATEGORY_LAUNCHER); ContentValues values = new ContentValues(); PackageManager packageManager = mContext.getPackageManager(); int allAppsButtonRank = mContext.getResources().getInteger(R.integer.hotseat_all_apps_index); int i = 0; try { XmlResourceParser parser = mContext.getResources().getXml(workspaceResourceId); AttributeSet attrs = Xml.asAttributeSet(parser); beginDocument(parser, TAG_FAVORITES); final int depth = parser.getDepth(); int type; while (((type = parser.next()) != XmlPullParser.END_TAG || parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) { if (type != XmlPullParser.START_TAG) { continue; } boolean added = false; final String name = parser.getName(); TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.Favorite); long container = LauncherSettings.Favorites.CONTAINER_DESKTOP; if (a.hasValue(R.styleable.Favorite_container)) { container = Long.valueOf(a.getString(R.styleable.Favorite_container)); } String screen = a.getString(R.styleable.Favorite_screen); String x = a.getString(R.styleable.Favorite_x); String y = a.getString(R.styleable.Favorite_y); // If we are adding to the hotseat, the screen is used as the position in the // hotseat. This screen can't be at position 0 because AllApps is in the // zeroth position. if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT && Integer.valueOf(screen) == allAppsButtonRank) { throw new RuntimeException("Invalid screen position for hotseat item"); } values.clear(); values.put(LauncherSettings.Favorites.CONTAINER, container); values.put(LauncherSettings.Favorites.SCREEN, screen); values.put(LauncherSettings.Favorites.CELLX, x); values.put(LauncherSettings.Favorites.CELLY, y); if (TAG_FAVORITE.equals(name)) { long id = addAppShortcut(db, values, a, packageManager, intent); added = id >= 0; } else if (TAG_SEARCH.equals(name)) { added = addSearchWidget(db, values); } else if (TAG_CLOCK.equals(name)) { added = addClockWidget(db, values); } else if (TAG_APPWIDGET.equals(name)) { added = addAppWidget(parser, attrs, type, db, values, a, packageManager); } else if (TAG_SHORTCUT.equals(name)) { long id = addUriShortcut(db, values, a); added = id >= 0; } else if (TAG_FOLDER.equals(name)) { String title; int titleResId = a.getResourceId(R.styleable.Favorite_title, -1); if (titleResId != -1) { title = mContext.getResources().getString(titleResId); } else { title = mContext.getResources().getString(R.string.folder_name); } values.put(LauncherSettings.Favorites.TITLE, title); long folderId = addFolder(db, values); added = folderId >= 0; ArrayList<Long> folderItems = new ArrayList<Long>(); int folderDepth = parser.getDepth(); while ((type = parser.next()) != XmlPullParser.END_TAG || parser.getDepth() > folderDepth) { if (type != XmlPullParser.START_TAG) { continue; } final String folder_item_name = parser.getName(); TypedArray ar = mContext.obtainStyledAttributes(attrs, R.styleable.Favorite); values.clear(); values.put(LauncherSettings.Favorites.CONTAINER, folderId); if (TAG_FAVORITE.equals(folder_item_name) && folderId >= 0) { long id = addAppShortcut(db, values, ar, packageManager, intent); if (id >= 0) { folderItems.add(id); } } else if (TAG_SHORTCUT.equals(folder_item_name) && folderId >= 0) { long id = addUriShortcut(db, values, ar); if (id >= 0) { folderItems.add(id); } } else { throw new RuntimeException("Folders can " + "contain only shortcuts"); } ar.recycle(); } // We can only have folders with >= 2 items, so we need to remove the // folder and clean up if less than 2 items were included, or some // failed to add, and less than 2 were actually added if (folderItems.size() < 2 && folderId >= 0) { // We just delete the folder and any items that made it deleteId(db, folderId); if (folderItems.size() > 0) { deleteId(db, folderItems.get(0)); } added = false; } } if (added) i++; a.recycle(); } } catch (XmlPullParserException e) { Log.w(TAG, "Got exception parsing favorites.", e); } catch (IOException e) { Log.w(TAG, "Got exception parsing favorites.", e); } catch (RuntimeException e) { Log.w(TAG, "Got exception parsing favorites.", e); } return i; }