| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.deskclock; |
| |
| import android.content.Context; |
| import android.os.PowerManager; |
| |
| /** |
| * Utility class to hold wake lock in app. |
| */ |
| public class AlarmAlertWakeLock { |
| |
| private static final String TAG = "AlarmAlertWakeLock"; |
| |
| private static PowerManager.WakeLock sCpuWakeLock; |
| |
| public static PowerManager.WakeLock createPartialWakeLock(Context context) { |
| PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| return pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); |
| } |
| |
| public static void acquireCpuWakeLock(Context context) { |
| if (sCpuWakeLock != null) { |
| return; |
| } |
| |
| sCpuWakeLock = createPartialWakeLock(context); |
| sCpuWakeLock.acquire(); |
| } |
| |
| public static void acquireScreenCpuWakeLock(Context context) { |
| if (sCpuWakeLock != null) { |
| return; |
| } |
| PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| sCpuWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK |
| | PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.ON_AFTER_RELEASE, TAG); |
| sCpuWakeLock.acquire(); |
| } |
| |
| public static void releaseCpuLock() { |
| if (sCpuWakeLock != null) { |
| sCpuWakeLock.release(); |
| sCpuWakeLock = null; |
| } |
| } |
| } |