CODEWITHSUNDEEP
iosobjective-cnsstringios-universal-links
kiri
kiri

Reputation: 2007

How to get Values from a NSString

I have an NSString. It is a URL I am getting when using Universal Links. I want to get id value from it. Is there any direct methods in SDK or do we need to use componententsSeparated String values?

Below is the NSString/URL:

https://some.com/cc/test.html?id=3039#value=test

I want to get two things: "test" from test.html and "id" value.

Upvotes: 0

Views: 431

Answers (3)

Dharma
Dharma

Reputation: 3013

We can make extension 

  extension URL {              
      func getParamValue(paramaterName: String) -> String? {
          guard let url = URLComponents(string:self.absoluteString ) else { return nil }
             return url.queryItems?.first(where: { $0.name == paramaterName})?.value
      }
  }

Now you can call like below

let someURL = URL(string: "https://some.com/cc/test.html?id=3039&value=test")!
someURL.getParamValue("id") // 3039
someURL.getParamValue("value") // test

Upvotes: 1

Lal Krishna
Lal Krishna

Reputation: 16160

You could create NSURLComponents from URL string get parameters by calling queryItems method. It will return array of NSURLQueryItem

NSURLComponents *components = [NSURLComponents componentsWithString:@"https://some.com/cc/test.html?id=3039&value=test"];
    NSArray *array = [components queryItems];
    for(NSURLQueryItem *item in array){
        NSLog(@"Name: %@, Value: %@", item.name, item.value);
    }
    NSLog(@"Items: %@", array);

Upvotes: 1

rmaddy
rmaddy

Reputation: 318814

Use NSURLComponents created from an NSURL or NSString of your URL.

From there you can use path to get the /cc/test.html part. Then use lastPathComponent to get test.html and finally use stringByDeletingPathExtension to get test.

To get the "id" value start with the components' queryItems value. Iterate that array finding the NSURLQueryItem with the name of "id" and then get its value.

Upvotes: 1

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