how to convert host of nsurl to lowercase - ios

Question

Let's say I have www.GOOgle.com/.......
I want to change it to www.google.com/....
and keep the rest of url as it is.
I have tried with NSURLComponents, but it didn't work.
// I am taking input from textfield and making the nsurl.
NSURLComponents *components = [NSURLComponents componentsWithString: _textfield.text]; // input from textfield
[[components host] lowercaseString];
NSURL *urlin = [components URL]; //but this gives, www.GOOgle.com
Any lead is appreciated.

Answer 1

As #Larme Suggests you can use method to setHost in url
see below example
NSURLComponents *components = [NSURLComponents componentsWithString: #"https://sTackoverFlow.com/questions/47924276/how-to-convert-host-of-nsurl-to-lowercase"];
[components setHost:[components.host lowercaseString] ];
NSLog(#"%#",components.URL)
H
ttps://stackoverflow.com/questions/47924276/how-to-convert-host-of-nsurl-to-lowercase
NOTE:
http:// is required to add in String otherwise you will get host nil
eg https://www.sTackoverFlow.com/questions/47924276/how-to-convert-host-of-nsurl-to-lowercase it will work
while
www.sTackoverFlow.com/questions/47924276/how-to-convert-host-of-nsurl-to-lowercase
Will Not work

Answer 2

If your string is only url then, you can try this,
let strURL = "http://GOogLe.Com/Testt/xyz"
let url = NSURL(string: strURL)
let domain: String = (url?.host)! //get your host name
print(domain) //GOogLe.Com
let str = strURL.replacingOccurrences(of: domain, with: domain.lowercased())
print(str) //http://google.com/Testt/xyz

Answer 3

Convert the string to lowercase.
Then pass the converted string value to the componentsWithString method.
Sample:
NSString *lowerCaseStringValue = [_textfield.text lowercaseString];
[NSURLComponents componentsWithString: lowerCaseStringValue];