1 /*
2  * Copyright (C) 2007 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 
19 import android.content.ContentResolver;
20 import android.content.Intent;
21 
22 /**
23  * These are standard columns for openable URIs. Providers that serve openable
24  * URIs <em>must</em> support at least these columns when queried.
25  * <p>
26  * To find the content type of a URI, use
27  * {@link ContentResolver#getType(android.net.Uri)}.
28  *
29  * @see Intent#CATEGORY_OPENABLE
30  */
31 public interface OpenableColumns {
32 
33     /**
34      * The human-friendly name of file. If this is not provided then the name should default to the
35      * the last segment of the file's URI.
36      */
37     public static final String DISPLAY_NAME = "_display_name";
38 
39     /**
40      * The number of bytes in the file identified by the openable URI. Null if unknown.
41      */
42     public static final String SIZE = "_size";
43 }
44