1 /*
2  * Copyright (C) 2008 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.os.storage;
18 
19 /**
20  * Used for receiving notifications from the StorageManager
21  *
22  * @hide
23  */
24 public class StorageEventListener {
25     /**
26      * Called when the detection state of a USB Mass Storage host has changed.
27      * @param connected true if the USB mass storage is connected.
28      */
onUsbMassStorageConnectionChanged(boolean connected)29     public void onUsbMassStorageConnectionChanged(boolean connected) {
30     }
31 
32     /**
33      * Called when storage has changed state
34      * @param path the filesystem path for the storage
35      * @param oldState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
36      * @param newState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
37      */
onStorageStateChanged(String path, String oldState, String newState)38     public void onStorageStateChanged(String path, String oldState, String newState) {
39     }
40 
onVolumeStateChanged(VolumeInfo vol, int oldState, int newState)41     public void onVolumeStateChanged(VolumeInfo vol, int oldState, int newState) {
42     }
43 
onVolumeRecordChanged(VolumeRecord rec)44     public void onVolumeRecordChanged(VolumeRecord rec) {
45     }
46 
onVolumeForgotten(String fsUuid)47     public void onVolumeForgotten(String fsUuid) {
48     }
49 
onDiskScanned(DiskInfo disk, int volumeCount)50     public void onDiskScanned(DiskInfo disk, int volumeCount) {
51     }
52 
onDiskDestroyed(DiskInfo disk)53     public void onDiskDestroyed(DiskInfo disk) {
54     }
55 }
56