如何在Android中将嵌套对象添加为JavascriptInterface？

Question

I need to call a website that has some javascript in it in a WebView . The javascript calls a method in a nested object like this:

window.plugins.anObject.method();

and I need to intercept that call to method() and do something, when its called (ie a native implementation for method() in Java). Without that plugins object, I would just do

myWebView.addJavascriptInterface(new Object() {
    @JavascriptInterface
    public void method() {
        // yay!
    }
}, "anObject");

but as I wrote, anObject must be a child of another plugins object. So what I tried was to replace "anObject" by "plugins.anObject" but that doesn't work. Is there any way how I can achieve this?

Answer 1

Instand of use:

window.plugins.anObject.method();

may be you can try this:

webview code:

myWebView.addJavascriptInterface(new Object() {
    @JavascriptInterface
    public void anObject() {
        return new Object(){
             @JavascriptInterface
             public void method() {
                 //yay!
             }
        }
    }
}, "plugins");

js code :

window.plugins.anObject().method();

Note:

the NPObject return to your js is not a common javascript object at all,you can't iterate this object and you can't redefine your member function when you define in webview such as bellow:

$(function(){
var old_method = window.plugins.method;
window.plugins.method = function(){
    //do some thing
    old_method();
    //do another thing
};
});