js 与 uiwebview objective c 交互

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网络上已经有相当多文章，自己备用:

1）objective c 调用js

[webview stringByEvaluatingJavaScriptFromString:jsString];

[win callWebScriptMethod:@"addImage"

            withArguments:args];

refs:

https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/DisplayWebContent/Tasks/JavaScriptFromObjC.html

2)js 回调objective c

利用uiwebview的delegate，但其中只有出现网页跳转时才会call到，所以有人在js中利用fake url跳转来实现回调，

webView:shouldStartLoadWithRequest:navigationType:

refs:

http://stackoverflow.com/questions/1662473/how-to-call-objective-c-from-javascript

这个soluton存在问题，所以有改良方法。

refs:(推荐)

http://blog.techno-barje.fr/post/2010/10/06/UIWebView-secrets-part3-How-to-properly-call-ObjectiveC-from-Javascript/

3）完整点功能的 jsbridge-to-cocoa

This api http://code.google.com/p/jsbridge-to-cocoa/ does it for you. It is very lightweight.

You can pass images, strings and arrays from javascript to objective-C.

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