119 lines
3.2 KiB
Java
119 lines
3.2 KiB
Java
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/*
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* Copyright (C) 2007 The Android Open Source Project
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* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.os;
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import java.io.IOException;
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import android.os.ServiceManager;
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/**
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* Class that provides access to some of the power management functions.
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*
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* {@hide}
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*/
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public class Power
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{
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// can't instantiate this class
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private Power()
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{
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}
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/**
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* Wake lock that ensures that the CPU is running. The screen might
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* not be on.
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*/
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public static final int PARTIAL_WAKE_LOCK = 1;
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/**
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* Wake lock that ensures that the screen is on.
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*/
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public static final int FULL_WAKE_LOCK = 2;
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public static native void acquireWakeLock(int lock, String id);
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public static native void releaseWakeLock(String id);
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public static native void acquireCpuWakeLock();
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public static native void releaseCpuWakeLock();
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/**
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* Brightness value for fully off
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*/
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public static final int BRIGHTNESS_OFF = 0;
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/**
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* Brightness value for dim backlight
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*/
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public static final int BRIGHTNESS_DIM = 20;
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/**
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* Brightness value for fully on
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*/
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public static final int BRIGHTNESS_ON = 255;
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/**
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* Brightness value to use when battery is low
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*/
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public static final int BRIGHTNESS_LOW_BATTERY = 10;
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/**
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* Threshold for BRIGHTNESS_LOW_BATTERY (percentage)
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* Screen will stay dim if battery level is <= LOW_BATTERY_THRESHOLD
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*/
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public static final int LOW_BATTERY_THRESHOLD = 10;
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/**
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* Turn the screen on or off
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*
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* @param on Whether you want the screen on or off
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*/
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public static native int setScreenState(boolean on);
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public static native int setLastUserActivityTimeout(long ms);
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/**
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* Low-level function turn the device off immediately, without trying
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* to be clean. Most people should use
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* {@link android.internal.app.ShutdownThread} for a clean shutdown.
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*
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* @deprecated
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* @hide
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*/
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@Deprecated
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public static native void shutdown();
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/**
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* Reboot the device.
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* @param reason code to pass to the kernel (e.g. "recovery"), or null.
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*
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* @throws IOException if reboot fails for some reason (eg, lack of
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* permission)
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*/
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public static void reboot(String reason) throws IOException
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{
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rebootNative(reason);
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}
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private static native void rebootNative(String reason) throws IOException ;
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/**
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* Activate/DeActivate Unstable Memory block
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*
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* @param on Whether you want Activate(true) or DeActive(False)
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*/
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public static native int SetUnstableMemoryState(boolean on);
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}
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