基于Rexsee实现Android平台的推送与监听，附原生代码

在Android实现信息推送有两种常用的方式种，短信或HTTP：
1. 短信方式实时性较好，但需要使用者有短信平台发送短信；
2. HTTP方式有一定延时，但使用更方便。
除此之外，还有一种伪推送：浏览器推送。
其实推送的原理非常简单，内容就是一堆参数字符串。如下所示：

command=startApplication;
startApplicationUrl=http://www.rexsee.com/rexsee/alarmClock.html;alermName=test;alermfirsttime='+(rexseeAlarm.getCurrentTime()+5000)+';
title=闹钟测试;
message=闹钟测试内容;
url=http://www.rexsee.com/rexsee/alarmClock.html

无论是短信还是HTTP推送，内容都是一样的，只是推送的形式不一样而已。当然，单方面的推送肯定是没有效果的，接收方还需要进行推送监听的设置，如果是HTTP推送，那么需要设置监听推送的页面；短信的话则是设置推送号码；但是短信监听的话会使得短信变成命令从而存到数据库内，而不会存入收件箱内了。
普通的推送如同提醒一般，会在通知栏上出现图标和提示文字，点击则根据设置的参数作出需要的动作，如打开某个客户端等。但推送的作用远不止如此，通过此类命令，甚至可以对手机进行远程控制。
上面的那一段代码就是一个“在5秒钟后打开闹钟测试页面”的远程操控DEMO。全部的示例代码如下，可以看到基于Rexsee我们完全可以使用HTML+JS实现，正如社区的介绍一下，有兴趣的可以直接去社区查看原生代码：
“5秒钟后打开闹钟”Demo分享：
一共分三个页面，第一，面向用户的，让使用者设置监听：

<html>
<head>
  <title>test</title>
  <script>
  function a(){
        rexseePushHttpListener.add('http://www.fuwu800.com/yezhenqing/push.html','testUser','testPassword');
        rexseePushHttpListener.setDurationAndTimeout(1,10);
        rexseePushHttpListener.refresh();
        }
  </script>
</head>
<body>
<input type="button" value="读取">
  <input type="button" value="清除">
  <a href="rexsee:private_file">asd</a>
</body>
</html>

第二个，被监听的页面，id是用系统用来判断是否已经接收到过命令，若不写则每次自动生成，即时根据监听间隔时间不停执行。

id=123123;
command=startApplication;
startApplicationUrl=http://www.rexsee.com/rexsee/alarmClock.html;
alermName=test;
alermfirsttime=0;
notificationimmediately=true;
title=闹钟测试;
message=闹钟测试内容;url=http://www.rexsee.com/rexsee/alarmClock.html

第三个，根据被监听页面的参数去执行的页面，该页面会自动解屏解锁然后运行。

<HTML> 
<HEAD> 
  <TITLE>Rexsee闹钟示例</TITLE> 
  <META http-equiv=Content-Type content=text/html charset=GB2312>  
  <META http-equiv=Expires content=0> 
  <META http-equiv=Cache-Control content=no-cache> 
  <META http-equiv=Pragma content=no-cache> 
<script>
      rexseeWakeLock.acquire(false);
      rexseeKeyguard.disable();
      rexseeVibrate.vibrate(1000);
      window.onException = function(className, message){
          alert("Class: "+className+"\n\nError: "+message);
      }
  </SCRIPT> 
<HEAD> 
<BODY> 
<table width=100% height=100%><tr><td align=center valign=middle style="font-size:48px;font-weight:bold;"> 
  时间到了！
  <br><button style="font-size:36px;font-weight:bold;">结束</button> 
</td></tr></table> 
</BODY> 
</HTML>

最后附上Rexsee实现的Android推送功能源码，供参考。。考虑到推送是一个非常强大的功能，大家别用来做坏事哈~~

 /* 
  * 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 
  * 
  * 
  * 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.service;  
  
import rexsee.core.alarm.RexseeAlarm;  
import rexsee.core.device.NotificationArgumentsSheet;  
import rexsee.core.utilities.Escape;  
import android.content.Context;  
import android.database.Cursor;  
import android.database.sqlite.SQLiteDatabase;  
  
public class RexseePush {  
  
        public static final String DATABASE_PUSH = "push.db";  
        public static final String TABLE_PUSH = "push";  
        public static final String TABLE_PUSH_SMS = "push_sms";  
        public static final String TABLE_PUSH_HTTP = "push_http";  
        public static final String TABLE_PUSH_HTTP_ARGUMENTS = "push_http_arguments";  
        public static final String PUSH_TYPE_HTTP = "http";  
        public static final String PUSH_TYPE_SMS = "sms";  
        public static final String PUSH_TYPE_BROWSER = "browser";  
        public static final int PUSH_STATUS_TODO = 0;  
        public static final int PUSH_STATUS_DONE = 1;  
  
        public static void initDatabase(Context context) {  
                SQLiteDatabase db = context.openOrCreateDatabase(DATABASE_PUSH, Context.MODE_PRIVATE, null);  
                db.execSQL("CREATE TABLE if not exists " + TABLE_PUSH + " (id int, date long, type Text, done int, address TEXT, arguments TEXT, Primary key(id));");  
                db.execSQL("CREATE TABLE if not exists " + TABLE_PUSH_SMS + " (phoneNumber TEXT);");  
                db.execSQL("CREATE TABLE if not exists " + TABLE_PUSH_HTTP + " (url TEXT,userId TEXT, userPassword TEXT, encoding Text);");  
                db.execSQL("CREATE TABLE if not exists " + TABLE_PUSH_HTTP_ARGUMENTS + " (duration int,timeout int);");  
                db.close();  
        }  
        public static void add(Context context, String type, long when, String address, String body) {  
                if (body == null) return;  
                NotificationArgumentsSheet argu = (new NotificationArgumentsSheet()).parseArguments(body);  
                int id = argu.getId((int) when);  
                try {  
                        SQLiteDatabase db = context.openOrCreateDatabase(DATABASE_PUSH, Context.MODE_PRIVATE, null);  
                        Cursor cursor = db.rawQuery("SELECT * from " + TABLE_PUSH + " where id=" + id + ";", null);  
                        if (cursor == null || cursor.getCount() == 0) {  
                                String sql = "INSERT INTO " + TABLE_PUSH + " VALUES (" + id + "," + when + ", '" + type + "',  " + PUSH_STATUS_TODO + ", '" + address + "', '" + Escape.escape(body) + "');";  
                                db.execSQL(sql);  
                                (new RexseeAlarm(context)).set(body);  
                        } else {  
                                if (argu.forcerepeat) {  
                                        String sql = "UPDATE " + TABLE_PUSH + " SET date=" + when + ",type='" + type + "',done=" + PUSH_STATUS_TODO + ",address='" + address + "',arguments='" + Escape.escape(body) + "' where id=" + id + ";";  
                                        db.execSQL(sql);  
                                        (new RexseeAlarm(context)).set(body);  
                                }  
                        }  
                        if (cursor != null) cursor.close();  
                        db.close();  
                } catch (Exception e) {  
                }  
        }  
  
}

http://www.pin5i.com/showtopic-33615.html

http://www.oschina.net/question/152050_22817

posted @ 2011-12-31 00:03 jacky.YL.G 阅读(481) 评论(0) 收藏举报

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基于Rexsee实现Android平台的推送与监听，附原生代码

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