Rexsee API介绍：Android WakeLock进程持续

在Android中，WakeLock可以让进程持续执行，即使手机关屏、进入睡眠模式。。基于Rexsee的WakeLock扩展可以使用JS实现。。

【函数】 void acquire(boolean onAfterRelease)

【说明】点亮屏幕直到release()被调用。

【参数】 onAfterRelease：在release()被调用后是否继续点亮至默认的屏幕超时。

【示例】

Html代码

window.setTimeout('rexseeKeyguard.disable();rexseeWakeLock.acquire(false);alert(\'点亮屏幕！\');',5000);
alert('请按电源键关屏，5秒后自动亮屏。');

【函数】 void release()

【说明】允许黑屏，如果调用的acquire()函数携带了参数true则仍需等待默认的屏幕超时时间后才会黑屏。

【示例】

Html代码

rexseeWakeLock.release();

rexseeWakeLock.java源码

/* * Copyright (C) 2011 The Rexsee Open Source Project * * Licensed under the Rexsee License, Version 1.0 (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.rexsee.com/CN/legal/license.html * * 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 rexsee.core.alarm;   import rexsee.core.browser.JavascriptInterface;  import rexsee.core.browser.RexseeBrowser;  import android.content.Context;  import android.os.PowerManager;   public class RexseeWakeLock implements JavascriptInterface {          private static final String INTERFACE_NAME = "WakeLock";         @Override         public String getInterfaceName() {                 return mBrowser.application.resources.prefix + INTERFACE_NAME;         }         @Override         public JavascriptInterface getInheritInterface(RexseeBrowser childBrowser) {                 return this;         }         @Override         public JavascriptInterface getNewInterface(RexseeBrowser childBrowser) {                 return new RexseeWakeLock(childBrowser);         }          private final Context mContext;         private final RexseeBrowser mBrowser;         private PowerManager.WakeLock mWakeLock = null;          public RexseeWakeLock(RexseeBrowser browser) {                 mBrowser = browser;                 mContext = browser.getContext();         }         public RexseeWakeLock(Context context) {                 mBrowser = null;                 mContext = context;         }          //JavaScript interface         public void acquire(boolean onAfterRelease) {                 release();                 PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);                 int mode = PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP;                 if (onAfterRelease) {                         mode = mode | PowerManager.ON_AFTER_RELEASE;                 }                 mWakeLock = pm.newWakeLock(mode, "");                 mWakeLock.acquire();         }         public void release() {                 if (mWakeLock != null) {                         mWakeLock.release();                         mWakeLock = null;                 }         }   }

更多相关文章

随机推荐