Hello guys I want to use "Custom URL Scheme" to transfer data from application to other application in iPhone. Can I ask: How big data can we transfer from app to app?
Thank you!
+2
A:
I know one upper bound is 2^32 - 1 bytes, because that's the maximum length of a NSString on the iPhone, and NSURL can be converted to NSStrings. But that may not be the lowest upper bound.
Matthew Flaschen
2010-03-16 01:10:57
+3
A:
Apple URL Scheme Usage: yourSchemeName://stringurl.........
Apple application need use - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url to handle url data. So I think your question may be equal to the maximum length of a URL.
Safari (Browser) At least 80,000 characters will work. I stopped testing after 80,000 characters.
flycomputer
2010-03-16 02:11:53
A big URL size is required for the canvas components, I guess :) If you right-click one of them and go to View Image, check out the URL -- the entire image is encoded in there as base 64!
Chris Dennett
2010-03-16 03:18:33
A:
Your data size won't be limited if you use UIPasteboard instead. This article details how to store your app's data into a named pasteboard, then pass the name of the pasteboard to another app using a custom URL scheme:
http://www.zacwhite.com/blog/2009/10/15/getting-user-data-from-a-lite-to-a-paid-app/
Tom
2010-03-16 03:25:02