Question

任何人都有助于解决这个问题我是开发新手

我需要使用相同的文本字段登录电话号码以及电子邮件ID我怎么能实现这一点因此我必须设置电话号码的10位数限制以及美国像（838） - （838）-3333格式电话号码..和电子邮件ID与相同的文本提交..如何验证用户输入电话号码或电子邮件..任何人帮我解决问题提前致谢这是我的代码

 if (!([self.usernameTextField.text validEmail] || [self.usernameTextField.text validateMobile])){
        [self ShowAlert:@"Please enter a valid email address/phonenumber"];

    }

- (BOOL)validEmail {
    NSString *emailRegex = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
    NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
    BOOL isValid = [emailTest evaluateWithObject:self];
    return isValid;
}

- (BOOL)validateMobile {
    NSString *ACCEPTABLE_CHARECTERS = @" 0123456789+-";
    NSCharacterSet *cs = [[NSCharacterSet characterSetWithCharactersInString:ACCEPTABLE_CHARECTERS] invertedSet];
    NSString *filtered = [[self componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
   // NSString* formattedNumber = [Contact formatPhoneNumber:phoneNumber codeLength:3 segmentLength:4];
    return [self isEqualToString:filtered];
}

Answer 1

在这里，我根据您的需要添加我的答案并自定义。

<强>步骤-1

连接文本字段并在当前类上调用委托，例如

 @interface ViewController ()<UITextFieldDelegate>


@property (strong, nonatomic) IBOutlet UITextField *currentTextfield;

@end

<强>步骤-2

获取文本字段委托shouldChangeCharactersInRange上的第一个字符，并检查它是否为数字（电话号码）或字符串（电子邮件）

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)textEntered

{
 NSString *resultingString = [textField.text stringByReplacingCharactersInRange: range withString: textEntered];

NSString *abnRegex = @"[A-Za-z]+";
NSPredicate *abnTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", abnRegex];
if (([abnTest evaluateWithObject:resultingString] || resultingString.length == 0)) {
    NSLog(@"its email");
}
else
{
    NSLog(@"its phone number");
}
return YES;
}

<强>步骤-3

如果是电话号码，则根据(838)-(838)-3333格式

排列字母

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)textEntered

{
 NSString *resultingString = [textField.text stringByReplacingCharactersInRange: range withString: textEntered];

 NSString *abnRegex = @"[A-Za-z]+";
 NSPredicate *abnTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", abnRegex];
if (([abnTest evaluateWithObject:resultingString] || resultingString.length == 0)) {
    NSLog(@"its email");
}
else
{
    NSLog(@"its phone number");
 //(838)-(838)-3333
    if (range.length == 1) {
        // Delete button was hit.. so tell the method to delete the last char.
        textField.text = [self formatPhoneNumber:resultingString deleteLastChar:YES];
    } else {
        textField.text = [self formatPhoneNumber:resultingString deleteLastChar:NO ];
    }
    return false;

}
return YES;
}

-(NSString*) formatPhoneNumber:(NSString*) simpleNumber deleteLastChar:(BOOL)deleteLastChar {
if(simpleNumber.length==0) return @"";
// use regex to remove non-digits(including spaces) so we are left with just the numbers
NSError *error = NULL;
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"[\\s-\\(\\)]" options:NSRegularExpressionCaseInsensitive error:&error];
simpleNumber = [regex stringByReplacingMatchesInString:simpleNumber options:0 range:NSMakeRange(0, [simpleNumber length]) withTemplate:@""];

// check if the number is to long
if(simpleNumber.length>10) {
    // remove last extra chars.
    simpleNumber = [simpleNumber substringToIndex:10];
}

if(deleteLastChar) {
    // should we delete the last digit?
    simpleNumber = [simpleNumber substringToIndex:[simpleNumber length] - 1];
}

// 123 456 7890
// format the number.. if it's less then 7 digits.. then use this regex.
if(simpleNumber.length<7)
    simpleNumber = [simpleNumber stringByReplacingOccurrencesOfString:@"(\\d{3})(\\d+)"
                                                           withString:@"($1)-($2)"
                                                              options:NSRegularExpressionSearch
                                                                range:NSMakeRange(0, [simpleNumber length])];

else   // else do this one..
    simpleNumber = [simpleNumber stringByReplacingOccurrencesOfString:@"(\\d{3})(\\d{3})(\\d+)"
                                                           withString:@"($1)-($2)-$3"
                                                              options:NSRegularExpressionSearch
                                                                range:NSMakeRange(0, [simpleNumber length])];
return simpleNumber;
}

<强>步骤-4

如果有效或无效，最后会在按钮操作上验证您的电子邮件或电话号码。

NSString *emailRegEx = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegEx];

NSString *phoneRegex = @" (((\d{3}) ?)-((\d{3}) ?))?-\d{4}";
NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", phoneRegex];

if([emailTest evaluateWithObject:currentTextfield.text] == NO && [phoneTest evaluateWithObject:currentTextfield.text] == NO)
{
    NSLog(@"Please enter a valid email address/phonenumber");

}

else
{
    //login successful

}

Answer 2

使用此方法将对您有所帮助，并节省您的宝贵时间。

 -(BOOL)textField:(UITextField *)textField 
  shouldChangeCharactersInRange:(NSRange)range replacementString: 
  (NSString *)string{

if (textField == _userIdTF){
     NSString *totalString = [NSString stringWithFormat:@"%@%@",_userIdTF.text,string];
    NSString *prefix;

    if ([totalString length] == 1){
        [[NSUserDefaults standardUserDefaults]removeObjectForKey:@"checkValue"];
    }

    if ([totalString length] >= 1){

        prefix = [totalString substringToIndex:1];
            NSLog(@"first letter %@",prefix);

            if ([prefix isEqualToString:@"1"] || [prefix isEqualToString:@"2"] || [prefix isEqualToString:@"2"] || [prefix isEqualToString:@"0"] || [prefix isEqualToString:@"3"]|| [prefix isEqualToString:@"4"] || [prefix isEqualToString:@"5"] || [prefix isEqualToString:@"6"] || [prefix isEqualToString:@"7"] || [prefix isEqualToString:@"8"] || [prefix isEqualToString:@"9"]){

                [[NSUserDefaults standardUserDefaults]setObject:@"1" forKey:@"checkValue"];
                NSLog(@"checkvalu %@",[[NSUserDefaults standardUserDefaults]objectForKey:@"checkValue"]);

        }else{

        }
            }
    NSString *checkValue = [[NSUserDefaults standardUserDefaults]objectForKey:@"checkValue"];
    NSLog(@"checkvalu %@",checkValue);
    if (  [checkValue  isEqual: @"1"] ) {
        if ([totalString containsString:@"05"]) {

            [totalString stringByReplacingOccurrencesOfString:totalString withString:@"+966"];
            NSLog(@"phone number");

            _userIdTF.text = [totalString stringByReplacingOccurrencesOfString:totalString withString:@"+966"];
        }
    }else{
          prefix = totalString;
    }

    NSUInteger newLength = [textField.text length] + [string 
 length] - range.length;

 if ([self.userIdTF.text containsString:@"+"]){

    NSLog(@"number ppad");

    NSString *acceptedCharsters = @"0123456789";


    NSCharacterSet *cs = [[NSCharacterSet 
 characterSetWithCharactersInString:acceptedCharsters] 
 invertedSet];

    NSString *filtered = [[string 
 componentsSeparatedByCharactersInSet:cs] 
 componentsJoinedByString:@""];

    return [string isEqualToString:filtered];
 }else{

 }

 return (newLength > 50) ? NO : YES;
 }
  else{
  return YES;
  }
 }

在目标c中提交的同一文本中验证电话号码和电子邮件

2 个答案: