1 /** 2 * Copyright (c) 2016, 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.os.storage.DiskInfo; 20 import android.os.storage.VolumeInfo; 21 import android.os.storage.VolumeRecord; 22 23 /** 24 * Callback class for receiving events from StorageManagerService. 25 * 26 * Don't change the existing transaction Ids as they could be used in the native code. 27 * When adding a new method, assign the next available transaction id. 28 * 29 * @hide - Applications should use {@link android.os.storage.StorageEventListener} class for 30 * storage event callbacks. 31 */ 32 oneway interface IStorageEventListener { 33 /** 34 * Detection state of USB Mass Storage has changed 35 * 36 * @param available true if a UMS host is connected. 37 */ onUsbMassStorageConnectionChanged(boolean connected)38 void onUsbMassStorageConnectionChanged(boolean connected) = 0; 39 40 /** 41 * Storage state has changed. 42 * 43 * @param path The volume mount path. 44 * @param oldState The old state of the volume. 45 * @param newState The new state of the volume. Note: State is one of the 46 * values returned by Environment.getExternalStorageState() 47 */ onStorageStateChanged(in String path, in String oldState, in String newState)48 void onStorageStateChanged(in String path, in String oldState, in String newState) = 1; 49 onVolumeStateChanged(in VolumeInfo vol, int oldState, int newState)50 void onVolumeStateChanged(in VolumeInfo vol, int oldState, int newState) = 2; 51 52 void onVolumeRecordChanged(in VolumeRecord rec) = 3; 53 54 void onVolumeForgotten(in String fsUuid) = 4; 55 onDiskScanned(in DiskInfo disk, int volumeCount)56 void onDiskScanned(in DiskInfo disk, int volumeCount) = 5; 57 58 void onDiskDestroyed(in DiskInfo disk) = 6; 59 60 /** 61 * Don't change the existing transaction Ids as they could be used in the native code. 62 * When adding a new method, assign the next available transaction id. 63 */ 64 }