从手写javascript调用实例方法的问题 [英] Issue with calling instance method from handwritten javascript

问题描述

任何人都可以帮助解决以下代码中的错误（根据SO上提出的类似问题的答案）：

  public String javaMethod（String input）{
 returnit works; 
 
 
 public native void defineBridgeMethod（）/ *  -  {
 var that = this; 
 $ wnd.jsFunction = $ entry（function（msg）{
 that。@ com.myclass.ClassName :: javaMethod（Ljava / lang / String;）（msg）
}）; 
}  -  * /; 
  

问题是Javascript找不到jsFunction：在Javascript代码中alert（jsFunction）返回'undefined' 。

谢谢。

编辑：Huh，一小时后：发现我只需要 that。@ com ... returned！

解决方案

后来：发现我只需要即。@ com ... 返回了！

桥接方法应该是：

  public native void defineBridgeMethod（）/ *  -  {
 var that = this; 
 $ wnd.jsFunction = $ entry（function（msg）{
 return that。@ com.myclass.ClassName :: javaMethod（Ljava / lang / String;）（msg）
}） ; 
}  -  * /; 
  

Can anyone help with what is wrong in the code below(based on the answers to a similar question asked on SO):

    public String javaMethod(String input) {
        return "it works";
}

    public native void defineBridgeMethod() /*-{ 
        var that = this;
        $wnd.jsFunction= $entry(function(msg) {
                 [e-mail]::javaMethod(Ljava/lang/String;)(msg)
            });
    }-*/;

The issue is that Javascript does not find jsFunction: alert(jsFunction) in Javascript code returns 'undefined'.

Thanks.

Edit: Huh, one hour later: figured out that I just needed to have that.@com... returned!

解决方案

Huh, one hour later: figured out that I just needed to have that.@com... returned!

The bridge method should be:

public native void defineBridgeMethod() /*-{ 
    var that = this;
    $wnd.jsFunction= $entry(function(msg) {
             return [e-mail]::javaMethod(Ljava/lang/String;)(msg)
        });
}-*/;

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