1/*
2 * Copyright (C) 2006 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.content;
18
19import android.os.IBinder;
20
21/**
22 * Interface for monitoring the state of an application service.  See
23 * {@link android.app.Service} and
24 * {@link Context#bindService Context.bindService()} for more information.
25 * <p>Like many callbacks from the system, the methods on this class are called
26 * from the main thread of your process.
27 */
28public interface ServiceConnection {
29    /**
30     * Called when a connection to the Service has been established, with
31     * the {@link android.os.IBinder} of the communication channel to the
32     * Service.
33     *
34     * @param name The concrete component name of the service that has
35     * been connected.
36     *
37     * @param service The IBinder of the Service's communication channel,
38     * which you can now make calls on.
39     */
40    public void onServiceConnected(ComponentName name, IBinder service);
41
42    /**
43     * Called when a connection to the Service has been lost.  This typically
44     * happens when the process hosting the service has crashed or been killed.
45     * This does <em>not</em> remove the ServiceConnection itself -- this
46     * binding to the service will remain active, and you will receive a call
47     * to {@link #onServiceConnected} when the Service is next running.
48     *
49     * @param name The concrete component name of the service whose
50     * connection has been lost.
51     */
52    public void onServiceDisconnected(ComponentName name);
53}
54