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 abstract 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 */ 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 */ 38 public void onStorageStateChanged(String path, String oldState, String newState) { 39 } 40 } 41