ios - Way to detect character that takes up more than one index spot in an NSString? -

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I'm thinking, is there a character that takes more than 1 index spot in an NSSTing? (Like an emoji). I am trying to implement a custom text view and when the user is removed, I have to know that I should only delete the last index spot or more.

Actually use NSString to use UTF-16 . Therefore it is very difficult to work with those letters which are two UTF-16 chatter (uniter) or more . But what you can do to get the range and delete with rangeOfComposedCharacterSequenceAtIndex .

Find the last character index from the first string

NSUnitor's last chic index = [String length] - 1;

More than the limit of the previous character 

  NSCNA Last Funeral = [REC limit: Sensitive SuratAntx: Last Customer Index];

Delete the character with the range (if it deletes UTF-16, then two UTF-16 is) 

  deleted LstCharString = [Str substringToIndex: lastCharRange. Location];

You can use this method with any type of character , which will deny any number


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