从json数据的ios字符串中拆分字符串？

Question

I have one string. Now I wanted to split this string. For static separation I know the code but I don't code for dynamic value.

my string is

NSString *str = @"https://graph.facebook.com/v2.5/181054825200000/feed?fields=created_time,message,picture,full_picture,comments.limit%280%29.summary%28true%29,likes.limit%280%29.summary%28true%29&limit=5&format=json&access_token=CAALjFrE5mNYBAOg1EDiUrsE2kr1kIRrLIv7g4OweSMvHso2exB5Dttshn7dgOlW24ZCXSnDZAWiV6xMUKXedTXUhiHpdmZBPCGzD1orFlrLRP2gaBZCbZBZBnjUHewF9hZBmJKxtiwVzpw9gnnQXk5Hfx0ZBM2ksAUzkSWR5feaNMbf3UUmUpJlxeh0gKdDrzWBvIJRPy0xGqL0ZAMFsRhyCZCTX42l1sZAceZB0VCeDZB95mrAZDZD&until=1456345291&__paging_token=enc_AdCKD3tSYMoZB3MCKaJkYnbVmBgUyY2tBceGDD2G1hqxRDiQKZCsSbmvWZASLvlCMf0BVzq2uZAScSWp7ZAavZB2d72BIHJISefk09noRuv9gA5b5hFwZDZD";

but i don't how to show any value dynamically .(for eg until (in string))

please help me for this issue.

Thank You.

Answer 1

For separate string by a separator you can use this.

NSString *url = @"<url>";
NSArray *array = [url componentsSeparatedByString:@"<seperator string>"];
NSLog(@"%@", array);

But for URL parsing ,As per Duncan's answer, yes it is good to parse a URL using NSURLComponents . By using this class you can get any desired part of an URL.

Answer 2

If you are parsing a URL you should really use NSURLComponents. It makes breaking a URL into the different parts much easier, and the code is tested and verified by Apple.