cocoa - How can I decode a utf8 NSstring on iphone? -

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I have NSstring which is encoded with UTF 8. I want to decode it.

I tried to do this but it does not work: 

  NSString * decodedString = [NSString stringWithUTF8 string: [Encoded string CStringUsingEncoding: [NSString defaultCStringEncoding]]];   
 
> 
 sending  cStringUsingEncoding:  to  encoded string  only if  encoded string  An NSString object is a means of having an NSString object which is the point you want to achieve, in that method, there is no  decode  string in it, using the encoding string  encodes < / Em> does; In this way, in the code you show, you ask for the encoding (randomly encoded) in some random encoding (the default C string encoding), then decoding the result as UTF-8 Let's try. It will not work. 
 
 You do not specify what type of code you are using  encodedString  by any means, by passing you the  encoded string  and passing its encoding, the NSString object Need to create. 
 
     
  •  If  encodedString  is an NSData object, then use 
    •  
  •  if it is a redundant string; 
    •  
 
  initWithUTF8 string:   
  •    
     / Code> You need to specify the encoding ( initWithUTF8 string:  by definition), and  initWithData: encoding:  except for an autoresaving feature version ( + StringWith ...  Instead of  -initWith ... ). 
     
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