In order to adjust functions of mobile virtual instruments dynamically,amobile virtual instrument browser based on iOSplatformhas been proposed.The principle is to turn thebrowser into differentvirtual instruments by loading different virtual instrument scriptsintoit.Avirtual instrument consists of several controls with many input and output interfaces.The assembly and communication of controls are based on KVO,and scripts are used to describe the assembly.All control classes inherit from UIView class and need to call and override a part of UlViewfunctions.The feasibility of the virtual instrument browser has been demonstrated by a signal generating-and-displaying instrument.%为了动态调整手机端虚拟仪器的功能,提出了一种基于iOS平台的手机虚拟仪器浏览器的设计方法;其主要原理是通过往浏览器中加载不同的虚拟仪器脚本,将浏览器变成不同的虚拟仪器;虚拟仪器的基本组成模块是拥有多个输入和输出接口的控件,控件之间采用KVO模式进行组装和通讯,并采用脚本描述组装.所有控件类都继承自UIView类,需要调用和重写UIView的部分函数;信号发生显示器的例子证明了虚拟仪器浏览器的可行性.
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