Calling JavaScript function from iOS native function

[Rachit Arora]

I am building an app for iDyanmo Card Swipe Reader.
The problem with me is this i want to call javascript function from my
native code so as when card is swipe i can get to know and can do
changes in my HTML View or one can say HTML Page according to that. Or
suggest me a better approach for this except building the app in
native.I know how to call native function from javascript by iOS
plugin.
Please help me i am get stuck in this very badly.


Note: I want to call Javascript function from native function not vice-
versa.



Thanks & Regards
Rachit Arora

[Shazron]

From your plugin:

NSString* result = [self.webView stringByEvaluatingJavaScriptFromString:@"myfunction('mystring')"];

Result is the result returned from the function.

Rachit Arora

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[Josh Arnold]

Shazron, could you provide the correlating Android code to perform this same calling of a PhoneGap method from the native app?

[Shazron]

See the Echo plugin:

http://docs.phonegap.com/en/2.3.0/guide_plugin-development_android_index.md.html#Developing%20a%20Plugin%20on%20Android

callbackContext.success(message);

[Shazron]

Scratch that. If you dive into the code, at a certain point you will see how it writes to the webView, just trace the callbackContext.success call

[Rachit Arora]

Thank you,i think it can help me alot.

[Rachit Arora]

Thanks for this can you please also tell me how to send parameter in this like nsstring *str=@"Hello";

How can i send str in this above function.

Thanks again

[Rachit Arora]

I am calling a function from AppDelegate of my HelloPlugin.m and over there I am calling [self.webView stringByEvaluatingJavaScriptFromString:@"myfunction('mystring')"]; it is not throwing any kind of error and on the same end it is also not calling my function...Please help...