StorageEventListener.java revision b104340496e3a531e26c8f428c808eca0e039f50 
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
17package android.os.storage;
18
19/**
20 * Used for receiving notifications from the StorageManager
21 */
22public abstract class StorageEventListener {
23    /**
24     * Called when the detection state of a USB Mass Storage host has changed.
25     * @param connected true if the USB mass storage is connected.
26     */
27    public void onUsbMassStorageConnectionChanged(boolean connected) {
28    }
29
30    /**
31     * Called when storage has changed state
32     * @param path the filesystem path for the storage
33     * @param oldState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
34     * @param newState the old state as returned by {@link android.os.Environment#getExternalStorageState()}.
35     */
36    public void onStorageStateChanged(String path, String oldState, String newState) {
37    }
38}
39