ios - How To Use UITextField Instead Of UISearchBar In Objective-C -

i have searchbox in app. it's class uitextfield instead of uisearchbar. want set searchbar. each string entered @ time, (void)search function string. don't know how that. in fact want call (void)search after each character entered.

-(void)textfielddidbeginediting:(uitextfield *)textfield {     [self search]; }  -(void)textfielddidendediting:(uitextfield *)textfield {     [self search]; } 

you can use shouldchangecharactersinrange current user input

- (bool)textfield:(uitextfield *)textfield shouldchangecharactersinrange:(nsrange)range replacementstring:(nsstring *)string{      nsstring * searhquery = [[textfield text] stringbyreplacingcharactersinrange:range withstring:string];    [self search:searhquery];      return yes; }