If you're tired or bored on creating validation methods for your textfields then SMTUtilities will be of great help.
SMTUtilities is an objective-c utility class for textfield validations.Each methods returns a BOOL value.
1.1.0
##METHODS #####Empty fields
+(BOOL)isEmpty:(UITextField *)field;#####Numerical Fields
+(BOOL)isNumeric: (UITextField *)field;#####Letter Fields
+(BOOL)isAlphabets:(UITextField *)field;#####Email Fields
+(BOOL)isValidEmail:(UITextField *)field;#####iPhone4 Screen check
+(BOOL)isiPhone4;#####iPhone6 Screen check
+(BOOL)isiPhone6;#####iOS8 version check
+(BOOL)isiOS8;#####iOS7 version check
+(BOOL)isiOS7;#####White spaces trimming
+(NSString *)trimWhiteSpaces:(NSString *)str;##Change Log - v1.1.0 New Methods
- iphone 4/6 screen checks
- iOS 7 and 8 version checks
- String trimming whitespaces.
- Add other common validations
- Create Swift counterpart
MIT