ios - 验证 objective-c 中同一文本字段中的电话号码和电子邮件

Question

任何人都可以帮助解决这个问题我是开发新手

我需要使用电话号码以及具有相同文本字段的电子邮件 ID 登录，我如何才能实现这一点，因此我必须为电话号码以及美国设置 10 位数字限制，例如 (838)-(838)-3333 格式的电话号码。 .和具有相同文本的电子邮件ID ..我如何验证用户输入电话号码或电子邮件..任何人都可以帮助我解决问题
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，我添加我的答案并根据您的需要进行自定义。

步骤 1

连接文本字段并调用当前类的委托(delegate)，例如

 @interface ViewController ()<UITextFieldDelegate>


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

@end

步骤 2

获取文本字段委托(delegate) shouldChangeCharactersInRange 上的第一个字符并检查它是数字(电话号码)还是字符串(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;
}

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;
}

第四步

最后在按钮操作上验证您的电子邮件或电话号码是否有效。

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

}