Question

With Phonegap, I read you can access native OS methods. What about the other way round ? Can native app that wraps the js module call javascript methods inside that module ?

Answer 1

totally possible here’s an example –

NSString * jsCallBack = [NSString 
                                 stringWithFormat:@"someJSFunction();"]; 
        [self.webView stringByEvaluatingJavaScriptFromString:jsCallBack];

I’ve got a blog post about the localNotifications plugin, it goes into detail about having the native iOS make callbacks to your JS

http://www.drewdahlman.com/meusLabs/?p=117