1/* 2 * Copyright (C) 2011 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.support.v4.app; 18 19/** 20 * Helper for accessing features in {@link android.app.Service} 21 * introduced after API level 4 in a backwards compatible fashion. 22 */ 23public class ServiceCompat { 24 25 private ServiceCompat() { 26 /* Hide constructor */ 27 } 28 29 /** 30 * Constant to return from {@link android.app.Service#onStartCommand}: if this 31 * service's process is killed while it is started (after returning from 32 * {@link android.app.Service#onStartCommand}), then leave it in the started 33 * state but don't retain this delivered intent. Later the system will try to 34 * re-create the service. Because it is in the started state, it will 35 * guarantee to call {@link android.app.Service#onStartCommand} after creating 36 * the new service instance; if there are not any pending start commands to be 37 * delivered to the service, it will be called with a null intent 38 * object, so you must take care to check for this. 39 * 40 * <p>This mode makes sense for things that will be explicitly started 41 * and stopped to run for arbitrary periods of time, such as a service 42 * performing background music playback. 43 */ 44 public static final int START_STICKY = 1; 45} 46