Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 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 android.provider; |
| 18 | |
Bjorn Bringert | 11a7ba3 | 2010-03-31 13:18:33 +0100 | [diff] [blame] | 19 | import android.content.ComponentName; |
| 20 | import android.content.ContentResolver; |
| 21 | import android.database.Cursor; |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 22 | import android.net.Uri; |
Bjorn Bringert | 11a7ba3 | 2010-03-31 13:18:33 +0100 | [diff] [blame] | 23 | |
| 24 | import java.util.List; |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 25 | |
| 26 | /** |
Bjorn Bringert | 11a7ba3 | 2010-03-31 13:18:33 +0100 | [diff] [blame] | 27 | * The Applications provider gives information about installed applications. |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 28 | * |
Peter Visontay | 11f4ae7 | 2011-02-25 12:37:33 +0000 | [diff] [blame] | 29 | * @hide Only used by ApplicationsProvider so far. |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 30 | */ |
| 31 | public class Applications { |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 32 | |
| 33 | /** |
| 34 | * The content authority for this provider. |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 35 | */ |
| 36 | public static final String AUTHORITY = "applications"; |
| 37 | |
| 38 | /** |
| 39 | * The content:// style URL for this provider |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 40 | */ |
| 41 | public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY); |
| 42 | |
| 43 | /** |
Bjorn Bringert | 11a7ba3 | 2010-03-31 13:18:33 +0100 | [diff] [blame] | 44 | * The content path for application component URIs. |
| 45 | */ |
| 46 | public static final String APPLICATION_PATH = "applications"; |
| 47 | |
| 48 | /** |
| 49 | * The content path for application search. |
| 50 | */ |
| 51 | public static final String SEARCH_PATH = "search"; |
| 52 | |
| 53 | private static final String APPLICATION_SUB_TYPE = "vnd.android.application"; |
| 54 | |
| 55 | /** |
| 56 | * The MIME type for a single application item. |
| 57 | */ |
| 58 | public static final String APPLICATION_ITEM_TYPE = |
| 59 | ContentResolver.CURSOR_ITEM_BASE_TYPE + "/" + APPLICATION_SUB_TYPE; |
| 60 | |
| 61 | /** |
| 62 | * The MIME type for a list of application items. |
| 63 | */ |
| 64 | public static final String APPLICATION_DIR_TYPE = |
| 65 | ContentResolver.CURSOR_DIR_BASE_TYPE + "/" + APPLICATION_SUB_TYPE; |
| 66 | |
| 67 | /** |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 68 | * no public constructor since this is a utility class |
| 69 | */ |
| 70 | private Applications() {} |
Bjorn Bringert | 11a7ba3 | 2010-03-31 13:18:33 +0100 | [diff] [blame] | 71 | |
| 72 | /** |
| 73 | * Gets a cursor with application search results. |
| 74 | * See {@link ApplicationColumns} for the columns available in the returned cursor. |
| 75 | */ |
| 76 | public static Cursor search(ContentResolver resolver, String query) { |
| 77 | Uri searchUri = CONTENT_URI.buildUpon().appendPath(SEARCH_PATH).appendPath(query).build(); |
| 78 | return resolver.query(searchUri, null, null, null, null); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Gets the application component name from an application URI. |
| 83 | * |
| 84 | * @param appUri A URI of the form |
| 85 | * "content://applications/applications/<packageName>/<className>". |
| 86 | * @return The component name for the application, or |
| 87 | * <code>null</code> if the given URI was <code>null</code> |
| 88 | * or malformed. |
| 89 | */ |
| 90 | public static ComponentName uriToComponentName(Uri appUri) { |
| 91 | if (appUri == null) return null; |
| 92 | if (!ContentResolver.SCHEME_CONTENT.equals(appUri.getScheme())) return null; |
| 93 | if (!AUTHORITY.equals(appUri.getAuthority())) return null; |
| 94 | List<String> pathSegments = appUri.getPathSegments(); |
| 95 | if (pathSegments.size() != 3) return null; |
| 96 | if (!APPLICATION_PATH.equals(pathSegments.get(0))) return null; |
| 97 | String packageName = pathSegments.get(1); |
| 98 | String name = pathSegments.get(2); |
| 99 | return new ComponentName(packageName, name); |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Gets the URI for an application component. |
| 104 | * |
| 105 | * @param packageName The name of the application's package. |
| 106 | * @param className The class name of the application. |
| 107 | * @return A URI of the form |
| 108 | * "content://applications/applications/<packageName>/<className>". |
| 109 | */ |
| 110 | public static Uri componentNameToUri(String packageName, String className) { |
| 111 | return Applications.CONTENT_URI.buildUpon() |
| 112 | .appendEncodedPath(APPLICATION_PATH) |
| 113 | .appendPath(packageName) |
| 114 | .appendPath(className) |
| 115 | .build(); |
| 116 | } |
| 117 | |
| 118 | /** |
| 119 | * The columns in application cursors, like those returned by |
| 120 | * {@link Applications#search(ContentResolver, String)}. |
| 121 | */ |
| 122 | public interface ApplicationColumns extends BaseColumns { |
| 123 | public static final String NAME = "name"; |
| 124 | public static final String ICON = "icon"; |
| 125 | public static final String URI = "uri"; |
| 126 | } |
Karl Rosaen | 875d50a | 2009-04-23 19:00:21 -0700 | [diff] [blame] | 127 | } |