Learning the NextInputs Framework: Key Knowledge of Java Class Libraries
Learning the NextInputs Framework: Key Knowledge of Java Class Libraries
NextInputs is an input validation framework for Java that makes it easier to validate and process user input. It provides a simple and flexible way to check various input conditions and help us write more reliable code.
1. Add NextInputs to the project:
In order to use the NextInputs framework, it needs to be added to the project's dependencies. This can be achieved by adding the following dependencies to the build.gradle file of the project:
dependencies {
implementation 'com.github.xiaofei-dev.NextInputs:NextInputs:1.0.1'
}
2. Create and configure NextInputs instances:
To use the NextInputs framework, you need to create a NextInputs instance and configure validation rules. You can create and configure a NextInputs instance using the following code:
import com.github.xiaofei_dev.nextinputs.NextInputs;
import com.github.xiaofei_dev.nextinputs.standard.StandardTextInputValidator;
import com.github.xiaofei_dev.nextinputs.standard.ViewNotEmptyValidator;
import com.github.xiaofei_dev.nextinputs.single.SharedPreferencesSingleChecker;
NextInputs nextInputs = new NextInputs();
nextInputs
. add (new StandardTextInputValidator (view1). setEmptyAllowed (false). setName ("Username"))//Verify the username field
. add (new StandardTextInputValidator (view2). setEmptyAllowed (false). setName ("Password"))//Verify password field
. add (new ViewNotEmptyValidator (view3). setName ("Email"))// Verify Email Fields
In this example, we used the StandardTextInputValidator and ViewNotEmptyValidator to validate the input fields. The StandardTextInputValidator is used to validate text input fields and uses the setEmptyAllowed() method to specify whether nulls are allowed. ViewNotEmptyValidator is used to verify whether non text input fields are empty.
3. Perform validation:
Once the NextInputs instance and validation rules are configured, validation can be performed. The following code can be used to perform validation:
if (nextInputs.test()) {
//Input validation passed
//Perform corresponding actions
} else {
//Input validation failed
//Display relevant error messages, etc
}
By calling the test() method, NextInputs validates the input fields based on the configured validation rules. If all fields are validated, the test() method will return true, otherwise it will return false.
Summary:
By using the NextInputs framework, we can more easily validate and process user input. It provides a simple and easy-to-use API to configure validation rules and a convenient method to perform validation. By using the NextInputs framework, we can write more reliable and efficient code to ensure the correctness and completeness of user input.
Reference code:
The complete NextInputs sample code can be found in the following GitHub repository:
https://github.com/xiaofei-dev/NextInputs