製作跟會員有關係的App,很常需要檢查Email格式 (Check Email Format),儘管知道這跟正規語言(Regular Language)有關係,但還是請高手幫我寫規則吧XD~
/**
Theme: Check Email Format
IDE: Xcode 8
Language: Objective C
Date: 105/11/14
Author: HappyMan
Blog: https://cg2010studio.wordpress.com/
*/
-(BOOL)isValidEmail:(NSString *)checkString
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}$";
NSString *laxString = @"^.+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2}[A-Za-z]*$";
NSString *emailRegex = stricterFilter ? stricterFilterString : laxString;
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:checkString];
}
以後直接來這裡複製貼上吧~
參考:Check that an email address is valid on iOS。
HappyMan・迴響