在UITextfield中输入ABCD会得到A B C D这种字母之间的空格需要特殊的方法才能清除掉。
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { NSString* newstring = [textField.text stringByReplacingCharactersInRange:range withString:string]; NSString *checker = [NSString stringWithFormat:@"%C", 8198]; // %C为大写 if ([newstring rangeOfString:checker].length) { newstring = [newstring stringByReplacingOccurrencesOfString:checker withString:@""]; } }
参考链接: