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; 18 19 import android.annotation.SystemApi; 20 21 /** 22 * Callback function for UpdateEngine. Used to keep the caller up to date 23 * with progress, so the UI (if any) can be updated. 24 * 25 * The APIs defined in this class and UpdateEngine class must be in sync with 26 * the ones in 27 * system/update_engine/binder_bindings/android/os/IUpdateEngine.aidl and 28 * system/update_engine/binder_bindings/android/os/IUpdateEngineCallback.aidl. 29 * 30 * {@hide} 31 */ 32 @SystemApi 33 public abstract class UpdateEngineCallback { 34 35 /** 36 * Invoked when anything changes. The value of {@code status} will 37 * be one of the values from {@link UpdateEngine.UpdateStatusConstants}, 38 * and {@code percent} will be valid [TODO: in which cases?]. 39 */ onStatusUpdate(int status, float percent)40 public abstract void onStatusUpdate(int status, float percent); 41 42 /** 43 * Invoked when the payload has been applied, whether successfully or 44 * unsuccessfully. The value of {@code errorCode} will be one of the 45 * values from {@link UpdateEngine.ErrorCodeConstants}. 46 */ onPayloadApplicationComplete(int errorCode)47 public abstract void onPayloadApplicationComplete(int errorCode); 48 } 49