how to replace space by % in objective c :Iphone

I am getting value in search box from user and storing it in NSstring *searchWord;

I want that when user typed let say "Lady Gaga" then I Replace the 开发者_运维百科space with % just like that searchWord=searchbar.text;

  now search word has "lady gaga"

 I want to replace it with.
  searchword=@"lady%gaga";

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You could try this :

NSString *newString = [ @"lady gaga" stringByReplacingOccurrencesOfString:@" " withString:@"%"];

It should work :-)

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-[NSString replaceOccurrencesOfString:withString:options:range:]