Question

For example, I got something format like this:

link://thisIsAction?param1=value1&param2=value2

and it may have one param like this

link://thisIsAction?param1=value1

or don’t have any param:

link://thisIsAction

How can I extract the thisIsAction, and the param, and value?
The param may not start with the prefix param, it may just simple as p.

And I want the param and value return in a dict… How can I do so? Thanks.

Answer 1

Convert the string to a NSURL and then use the API to extract different parts of it, including the query string parameters.

You can get the host using

NSURL *url = [NSURL URLWithString:yourUrlString]; 
NSString *scheme = [url scheme]; // gives "link" 
NSString *host = [url host];  // gives thisIsAction in your example
NSString *query = [url query]; // gives "param=value1&param=value2"

Documentation on it here

As pointed out by @Rene, to get the query value in a dictionary, follow the top answer on Parse NSURL query parameter