ios Check phone number of american valid or not [closed] - ios

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i want check the a string is or not match to american phone number?
(xxx)xxx-xxxx or
xxx-xxx-xxxx
please help me,thank you.

Answer 1

I think the best solution would be using RMPhoneFormat.
As the description says :
RMPhoneFormat *fmt = [[RMPhoneFormat alloc] init];
// Call any number of times
NSString *numberString = // the phone number to validate
BOOL valid = [fmt isPhoneNumberValid:fmt];
Good luck !

Answer 2

Use
https://github.com/rmaddy/RMPhoneFormat
And Check like
For Australia
RMPhoneFormat *formet = [RMPhoneFormat instance];
NSString *MyCode = [formet callingCodeForCountryCode:#"AU"];
NSString *defaultCallingCode = [formet defaultCallingCode];
For India
RMPhoneFormat *formet = [RMPhoneFormat instance];
NSString *MyCode = [formet callingCodeForCountryCode:#"IN"];
NSString *defaultCallingCode = [formet defaultCallingCode];
...
Here MyCode is return code of Country , such like..
For Australia it return - 67
For India it return - 91

Answer 3

This should be easily done with regular expressions. Go through this document http://developer.apple.com/library/mac/documentation/Foundation/Reference/NSRegularExpression_Class/Reference/Reference.html and try to make regular expression to check if string matches American phone number pattern.
There are lots of really good tutorials about objective-c regular expressions on the Internet.