+(NSString*)encodeString:(NSString*)unencodedString{
// CharactersToBeEscaped = @":/?&=;+!@#$()~',*";
// CharactersToLeaveUnescaped = @"[].";
NSString*encodedString=(NSString*)
CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(CFStringRef)unencodedString,
NULL,
(CFStringRef)@"!*'();:@&=+$,/?%#[]",
kCFStringEncodingUTF8));
returnencodedString;
}
//URLDEcode
-(NSString*)decodeString:(NSString*)encodedString
{
//NSString *decodedString = [encodedString stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding ];
NSString*decodedString=(__bridge_transferNSString*)CFURLCreateStringByReplacingPercentEscapesUsingEncoding(NULL,
(__bridgeCFStringRef)encodedString,
CFSTR(""),
CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));
returndecodedString;
}
