来源: 互联网  发布时间: 2014-02-18

WTK模拟器之RMS文件(2)

从分析可看看出：0x0000 - 0x002f 是文件头
00x0030 - 0x00af 是第一记录内容

文件头中还有0x001e - 0x001f 意义不明
记录内容中还有0x0032 - 0x0033 意义不明(事后发现,这里应该是上一记录偏移量)

不过在多次修改记录后，记录的位置会发生变化，甚至有ID不为1的记录出现在0x30,而ID为1的记录出现在其他地方的情况，初步估计是优化的结果。

    

    来源: 互联网  发布时间: 2014-02-18

OpenBaseMovil 升级机制

   protected void startApp()
            throws MIDletStateChangeException
    {
        try
        {
            // If the last time the application exited it set the install.url
            // setting, it means that we should install a new version of the
            // midlet and exit again
            final String installURL = Settings.getProperty( "install.url" );
            if( installURL != null )
            {
                Settings.setProperty( "install.url", null );
                platformRequest( installURL );
                destroyApp( true );
                notifyDestroyed();
            }
            else
            {
                ((MainController) ViewFactory.getController( "main" ))
                        .startApplication();
            }
        }
        catch( Exception e )
        {
            log.error( e );
            throw new MIDletStateChangeException( e.getMessage() );
        }
    }

从代码可以看出其机制:正常情况下,升级URL是空的,当用户希望升级时,将在RMS中设置升级URL,在应用下次启动时,检测到升级URL不为空就进入了升级流程:
1. 首先清空升级URL值(用户升级后可能保留其RMS数据)
2. 发出平台下载请求(升级URL)
3. 退出应用(应用运行时是不可能升级的)

我的想法:在对于每个应用,在服务器中设置一个文件,里面有应用最新的版本号,当用户发出升级命令时,检查服务器文件的版本号,若比现时的应用高,则进入2,3流程

    

    来源: 互联网  发布时间: 2014-02-18

开发我的.Net 简单的网络程序。
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