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 import android.annotation.UnsupportedAppUsage;
20 
21 /**
22  * Used for receiving notifications from the StorageManager
23  *
24  * @hide
25  */
26 public class StorageEventListener {
27     /**
28      * Called when the detection state of a USB Mass Storage host has changed.
29      * @param connected true if the USB mass storage is connected.
30      */
31     @UnsupportedAppUsage
onUsbMassStorageConnectionChanged(boolean connected)32     public void onUsbMassStorageConnectionChanged(boolean connected) {
33     }
34 
35     /**
36      * Called when storage has changed state
37      * @param path the filesystem path for the storage
38      * @param oldState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
39      * @param newState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
40      */
41     @UnsupportedAppUsage
onStorageStateChanged(String path, String oldState, String newState)42     public void onStorageStateChanged(String path, String oldState, String newState) {
43     }
44 
45     @UnsupportedAppUsage
onVolumeStateChanged(VolumeInfo vol, int oldState, int newState)46     public void onVolumeStateChanged(VolumeInfo vol, int oldState, int newState) {
47     }
48 
49     @UnsupportedAppUsage
onVolumeRecordChanged(VolumeRecord rec)50     public void onVolumeRecordChanged(VolumeRecord rec) {
51     }
52 
53     @UnsupportedAppUsage
onVolumeForgotten(String fsUuid)54     public void onVolumeForgotten(String fsUuid) {
55     }
56 
57     @UnsupportedAppUsage
onDiskScanned(DiskInfo disk, int volumeCount)58     public void onDiskScanned(DiskInfo disk, int volumeCount) {
59     }
60 
61     @UnsupportedAppUsage
onDiskDestroyed(DiskInfo disk)62     public void onDiskDestroyed(DiskInfo disk) {
63     }
64 }
65