Example Demonstration: How to use the NextInpputs framework to build a Java class library
Based on the title, this article will demonstrate how to use the NextinPuts framework to build a Java library.NextInputs is a powerful framework for verifying the user input. It provides a series of verification rules and error information prompt functions that allow developers to easily verify the user's input data.
Below is a simple example to demonstrate how to use NextInputs to verify the emails and passwords entered by the user:
import com.github.ykrank.androidtools.widget.datetimepicker.utils.ValidationUtil;
import com.github.ykrank.androidtools.widget.datetimepicker.validators.InputValidator;
import com.github.ykrank.androidtools.widget.datetimepicker.validators.NotEmptyValidator;
import com.github.ykrank.androidtools.widget.datetimepicker.validators.PredicateValidator;
import com.github.ykrank.androidtools.widget.datetimepicker.validators.TextValidator;
import com.github.ykrank.androidtools.widget.nextinputs.EditTextFutureValidator;
import com.github.ykrank.androidtools.widget.nextinputs.Validator;
import com.github.ykrank.androidtools.widget.nextinputs.validators.AbstractValidator;
import com.github.ykrank.androidtools.widget.nextinputs.validators.PredicateMappedValidator;
public class UserValidator {
private EditTextFutureValidator emailValidator;
private EditTextFutureValidator passwordValidator;
public UserValidator() {
emailValidator = new EditTextFutureValidator();
emailValidator.setEditText(inputEmail);
passwordValidator = new EditTextFutureValidator();
passwordValidator.setEditText(inputPassword);
}
public void validateEmail() {
emailvalidator.add (New Notemptyvalidator ("Please enter your email address");
EmailValidator.add (New PredicateMappedvalidator (ValidationUtil :: Isemailvalid, "Please enter valid email address");););
emailValidator.check();
}
public void validatePassword() {
passwordValidator.add
passwordValidator.add (New Textvalidator (6, 20, "password length must be between 6 and 20 characters");
passwordValidator.check();
}
public boolean isEmailValid() {
return emailValidator.isValid();
}
public boolean isPasswordValid() {
return passwordValidator.isValid();
}
}
In the above example, we created a class called `UserValidator`, which is responsible for verifying the user's email and password.This class uses the `EditTextFutureValidator` provided by the NextInputs framework to verify the input data.`EditTextFutureValidator` is part of the NextInPuts framework, which allows us to apply the verification rules to the Edittext field.
In the constructor, we created the `EditTextFutureValidator` instance and bind it to the corresponding EditText.We can then verify the emails and passwords with the methods of `valuemail` and` valuePassword`.
`Validateemail` Methods using two verification rules:` NoteMPTYIDIDATOR `to check whether the input is empty, if it is empty, display the corresponding error prompt information; Isemailvalid`), Used to verify whether the input is an effective email address.
`ValidatePassword` Methods using two verification rules:` Notemptyvalidator` to check whether the input is empty, if it is empty, display the corresponding error prompt information;Check whether the input meets the specified password length range.
Finally, we can use the method of `isemailvalidid` and` ispasswordValid` to check whether the input is verified.
This is just a simple example. The NextinPuts framework also provides more powerful verification functions. Developers can expand and customize according to actual needs.By using the NextinPuts framework, we can easily build a strong input verification logic to improve the reliability and user experience of the application.
