[IOS development] Chinese URL encode

There are two methods:

1. Use nsstring:

Nsstring* String2 = [string1Stringbyaddingpercentescapesusingencoding:Nsutf8stringencoding];

Nsstring* String1 = [string2Stringbyreplacingpercentescapesusingencoding:Nsutf8stringencoding];

 

Ii. Use cfstringref

Surl = (nsstring *) cfurlcreatestringbyaddingpercentescapes (kcfallocatordefault, (cfstringref) Surl, nil, nil, kcfstringencodingutf8 );

 

However, neither of the two methods will process reserved characters in the URL. If you want to process reserved characters, we recommend that you use Google's Objective C tool library gtmnsstring + urlarguments for processing:

Http://code.google.com/p/google-toolbox-for-mac/source/browse/trunk/Foundation/GTMNSDictionary%2BURLArguments.h