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2014/10/15 ¤U¤È 10:03:35

iphone Programming Glossary: alpha_numeric

iOS TextField Validation

http://stackoverflow.com/questions/7665323/ios-textfield-validation

to add #define ALPHA @ ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #define NUMERIC @ 1234567890 #define ALPHA_NUMERIC ALPHA NUMERIC BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString.. componentsSeparatedByString @ @ count 1 unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC stringByAppendingString @ . invertedSet else unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC.. stringByAppendingString @ . invertedSet else unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC stringByAppendingString @ . # ' ^_` ~@ invertedSet break Assuming PHONE_textField.tag 1002 case 1002 if textField.text.length..

How to check if UITextField's text is valid email?

http://stackoverflow.com/questions/7707906/how-to-check-if-uitextfields-text-is-valid-email

address #define ALPHA @ ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz #define NUMERIC @ 1234567890 #define ALPHA_NUMERIC ALPHA NUMERIC BOOL textField UITextField textField shouldChangeCharactersInRange NSRange range replacementString NSString.. componentsSeparatedByString @ @ count 1 unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC stringByAppendingString @ . invertedSet else unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC.. stringByAppendingString @ . invertedSet else unacceptedInput NSCharacterSet characterSetWithCharactersInString ALPHA_NUMERIC stringByAppendingString @ . # ' ^_` ~@ invertedSet return string componentsSeparatedByCharactersInSet unacceptedInput count..