Enter phone number to implement automatic 344 format

Use a space, if you use-to replace the space-ok

#define NUMBERS @ "0123456789"

1 //keyboard changes, control changes2-(BOOL) TextField: (Uitextfield *) TextField Shouldchangecharactersinrange: (nsrange) range replacementstring: ( NSString *)string {3     4nscharacterset*CS;5CS =[[Nscharacterset charactersetwithcharactersinstring:numbers] invertedset];6nsstring*filtered = [[stringCOMPONENTSSEPARATEDBYCHARACTERSINSET:CS] Componentsjoinedbystring:@""];7BOOL basictest = [stringisequaltostring:filtered];8 9Nsinteger existedlength =textField.text.length;TenNsinteger selectedlength =range.length; OneNsinteger replacelength =string. Length; A      -     if(Existedlength-selectedlength + replacelength > -) { -         returnNO; the     } -  -      -     if(basictest) +     { -         if(TextField = =Phonetxtfield) +         { A  at             if([stringIsequaltostring:@""]){//Delete character -                 if((TextField.text.length-2) %4==0) && (TextField.text.length-2) %6!=0)) { -Textfield.text = [Textfield.text substringToIndex:textField.text.length-1]; -}Else if(TextField.text.length-2) %9==0){ -Textfield.text = [Textfield.text substringToIndex:textField.text.length-1]; -                 } in                 returnYES; -}Else { to                 if(textfield.text.length<5) { +                     if(TextField.text.length%4==0) { -Textfield.text = [NSString stringWithFormat:@"%@ ", Textfield.text]; the                     } *}Else{ $                     if(TextField.text.length%9==0) {Panax NotoginsengTextfield.text = [NSString stringWithFormat:@"%@ ", Textfield.text]; -                 } the                 } +                  A             } the             returnYES; +         } -     } $     Else $     { -         returnNO; -     } the      -     Wuyi     if(string. length = =0) { the          -         returnYES; Wu     } -      About      $     returnYES; -      -  -      A } +  the  - //keyboard off $-(void) Textfielddidendediting: (Uitextfield *) TextField the { the     if(TextField = = Phonetxtfield) && (textfield.text.length== -) ){ theNSLog (@"nine-bit input"); theNSString *all=[phonetxtfield.text Substringfromindex:1]; -          inNSString *first=[all Substringtoindex:3]; the          theNSString *pp=[all Substringfromindex:4]; About          theNSString *center=[pp Substringtoindex:4]; the          theNSString *last=[pp Substringfromindex:5]; +          -NSLog (@"aaaaaaaaaa=%@%@%@\n", first,center,last); the         BayiUserphone=[nsstring stringWithFormat:@"%@%@%@", First,center,last]; the  the     } -}

Enter phone number to implement automatic 344 format