| /* |
| * 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 android.provider; |
| |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.database.Cursor; |
| import android.net.Uri; |
| |
| import java.util.List; |
| |
| /** |
| * The Applications provider gives information about installed applications. |
| * |
| * @hide Only used by ApplicationsProvider so far. |
| */ |
| public class Applications { |
| |
| /** |
| * The content authority for this provider. |
| */ |
| public static final String AUTHORITY = "applications"; |
| |
| /** |
| * The content:// style URL for this provider |
| */ |
| public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY); |
| |
| /** |
| * The content path for application component URIs. |
| */ |
| public static final String APPLICATION_PATH = "applications"; |
| |
| /** |
| * The content path for application search. |
| */ |
| public static final String SEARCH_PATH = "search"; |
| |
| private static final String APPLICATION_SUB_TYPE = "vnd.android.application"; |
| |
| /** |
| * The MIME type for a single application item. |
| */ |
| public static final String APPLICATION_ITEM_TYPE = |
| ContentResolver.CURSOR_ITEM_BASE_TYPE + "/" + APPLICATION_SUB_TYPE; |
| |
| /** |
| * The MIME type for a list of application items. |
| */ |
| public static final String APPLICATION_DIR_TYPE = |
| ContentResolver.CURSOR_DIR_BASE_TYPE + "/" + APPLICATION_SUB_TYPE; |
| |
| /** |
| * no public constructor since this is a utility class |
| */ |
| private Applications() {} |
| |
| /** |
| * Gets a cursor with application search results. |
| * See {@link ApplicationColumns} for the columns available in the returned cursor. |
| */ |
| public static Cursor search(ContentResolver resolver, String query) { |
| Uri searchUri = CONTENT_URI.buildUpon().appendPath(SEARCH_PATH).appendPath(query).build(); |
| return resolver.query(searchUri, null, null, null, null); |
| } |
| |
| /** |
| * Gets the application component name from an application URI. |
| * |
| * @param appUri A URI of the form |
| * "content://applications/applications/<packageName>/<className>". |
| * @return The component name for the application, or |
| * <code>null</code> if the given URI was <code>null</code> |
| * or malformed. |
| */ |
| public static ComponentName uriToComponentName(Uri appUri) { |
| if (appUri == null) return null; |
| if (!ContentResolver.SCHEME_CONTENT.equals(appUri.getScheme())) return null; |
| if (!AUTHORITY.equals(appUri.getAuthority())) return null; |
| List<String> pathSegments = appUri.getPathSegments(); |
| if (pathSegments.size() != 3) return null; |
| if (!APPLICATION_PATH.equals(pathSegments.get(0))) return null; |
| String packageName = pathSegments.get(1); |
| String name = pathSegments.get(2); |
| return new ComponentName(packageName, name); |
| } |
| |
| /** |
| * Gets the URI for an application component. |
| * |
| * @param packageName The name of the application's package. |
| * @param className The class name of the application. |
| * @return A URI of the form |
| * "content://applications/applications/<packageName>/<className>". |
| */ |
| public static Uri componentNameToUri(String packageName, String className) { |
| return Applications.CONTENT_URI.buildUpon() |
| .appendEncodedPath(APPLICATION_PATH) |
| .appendPath(packageName) |
| .appendPath(className) |
| .build(); |
| } |
| |
| /** |
| * The columns in application cursors, like those returned by |
| * {@link Applications#search(ContentResolver, String)}. |
| */ |
| public interface ApplicationColumns extends BaseColumns { |
| public static final String NAME = "name"; |
| public static final String ICON = "icon"; |
| public static final String URI = "uri"; |
| } |
| } |