从代号一个调用自定义JavaScript函数 [英] calling custom JavaScript function from codename one

问题描述

我最近遇到了JSObject和JSFuntion，看起来真的很混乱。它可以用于调用自定义JavaScript函数并将值返回到我的CN1应用程序吗？或者它是否用于其他功能？全部谢谢

I recently came across the JSObject and JSFuntion, and it seemed really confusing. Can it be used to call custom JavaScript functions and return values back to my CN1 app? Or is it for some other function?. Thanks all

推荐答案

查看javadoc软件包概述：
https://www.codenameone.com/javadoc/com/codename1/javascript/package-summary.html

Check out the javadoc package overview for that: https://www.codenameone.com/javadoc/com/codename1/javascript/package-summary.html

例如从该页面：

以下示例显示了一个带有简单add（）方法的对象，
只是将两个数字加在一起：

The following example shows an object with a simple add() method that just adds two numbers together:

JSObject obj = (JSObject)ctx.get("{ add : function(a,b){ return a+b;}}");
Double result = (Double)obj.call("add", 
    new Object[]{new Integer(1), new Integer(3)}
);

// Result should be 4.0

这篇关于从代号一个调用自定义JavaScript函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！