How to pass json from JavaScript to iPad native app?

Question

I have an iPad native application with webviews. How can I call a native function in the webview and pass some JSON data to it?

Do you want to call Obj-C from JS or the other way around? – Christian Schnorr Apr 18 '12 at 12:05 — Christian Schnorr, Apr 18 '12 at 12:05

score 1 · Accepted Answer · answered Jan 18 '12 at 15:44

1

You need to use window.External.notify like this following blog mentions

http://www.stevesaxon.me/posts/2011/window-external-notify-in-ios-uiwebview/

answered Jan 18 '12 at 15:44

Joseph Le Brech

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score 0 · Answer 2 · edited May 23 '17 at 11:49

This is a quite similar question to this one:

How to call Objective-C from Javascript?

The two more popular frameworks for doing this are JSBridge (pretty lightweight)

http://code.google.com/p/jsbridge-to-cocoa/

and to some extend PhoneGap as a much more complete solution

http://phonegap.com/ .

I used the first one for some project and I have been pretty happy with it - but maybe it requires some small adaptions because the SBJSON framework it relies on changed while JSBridge was not properly maintained in the meantime.

How to pass json from JavaScript to iPad native app?

2 Answers2