我想创建自己的编辑文本字段,该字段用于来自用户的多个条目,具有不同的必需验证集(电子邮件,电话,信用卡,混合字符)。
答案 0 :(得分:0)
试试这样:
对于CreditCard:
public boolean isValid(EditText et) {
try {
return validateCardNumber(et.getText().toString());
} catch (Exception e) {
return false;
}
}
public static boolean validateCardNumber(String cardNumber) throws NumberFormatException {
int sum = 0, digit, addend = 0;
boolean doubled = false;
for (int i = cardNumber.length () - 1; i >= 0; i--) {
digit = Integer.parseInt (cardNumber.substring (i, i + 1));
if (doubled) {
addend = digit * 2;
if (addend > 9) {
addend -= 9;
}
} else {
addend = digit;
}
sum += addend;
doubled = !doubled;
}
return (sum % 10) == 0;
}
对于IpAddress:
public IpAddressValidator(String _customErrorMessage) {
super(_customErrorMessage, Build.VERSION.SDK_INT>=8?Patterns.IP_ADDRESS:Pattern.compile(
"((25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9])\\.(25[0-5]|2[0-4]"
+ "[0-9]|[0-1][0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1]"
+ "[0-9]{2}|[1-9][0-9]|[1-9]|0)\\.(25[0-5]|2[0-4][0-9]|[0-1][0-9]{2}"
+ "|[1-9][0-9]|[0-9]))"));
}
查看此示例应用程序以获取更多详细信息:here