手機號碼判斷

public static boolean isPhoneNumberValid(String phoneNumber) {

   boolean isValid = false;

   String expression = "((^(13|15|18)[0-9]{9}$)|(^0[1,2]{1}\\d{1}-?\\d{8}$)|(^0[3-9] {1}\\d{2}-?\\d{7,8}$)|(^0[1,2]{1}\\d{1}-?\\d{8}-(\\d{1,4})$)|(^0[3-9]{1}\\d{2}-? \\d{7,8}-(\\d{1,4})$))";

   CharSequence inputStr = phoneNumber;

   Pattern pattern = Pattern.compile(expression); 

   Matcher matcher = pattern.matcher(inputStr); 

   if (matcher.matches() ) {

   isValid = true;

   }

   return isValid;

   }