/documentation/RockLockTutorial/RockLock_05/src/com/marvin/rocklock/ScreenOnHandlerService.java

 1/*
 2 * Copyright (C) 2010 Google Inc.
 3 * 
 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 5 * use this file except in compliance with the License. You may obtain a copy of
 6 * 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, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
14 * the License.
15 */
16
17package com.marvin.rocklock;
18
19import android.app.Service;
20import android.content.BroadcastReceiver;
21import android.content.Context;
22import android.content.Intent;
23import android.content.IntentFilter;
24import android.os.IBinder;
25import android.util.Log;
26
27/**
28 * Service that registers a receiver to catch the screen on intent and launches
29 * the main RockLockActivity.
30 * 
31 * @author clchen@google.com (Charles L. Chen)
32 */
33public class ScreenOnHandlerService extends Service {
34    private BroadcastReceiver screenwakeup = new BroadcastReceiver() {
35
36        public static final String TAG = "screen wakeup";
37
38        public static final String Screen = "android.intent.action.SCREEN_ON";
39
40        @Override
41        public void onReceive(Context context, Intent intent) {
42            if (!intent.getAction().equals(Screen)) {
43                return;
44            }
45
46            Log.e(TAG, Screen);
47
48            Intent i = new Intent(context, RockLockActivity.class);
49            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
50            context.startActivity(i);
51        }
52    };
53
54    @Override
55    public IBinder onBind(Intent arg0) {
56        // Do nothing
57        return null;
58    }
59
60    @Override
61    public void onCreate() {
62        super.onCreate();
63
64        this.startForeground(0, null);
65
66        IntentFilter onfilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
67        this.registerReceiver(screenwakeup, onfilter);
68    }
69
70}