Using MaterialFX in IntelliJ - intellij-idea

Question

I've been trying to use MaterialFX (which is a JavaFX design library (like jFoenix)) in IntelliJ but I didn't succeed to do so. I've added the required dependency:
Also, I've added the requires org.glavo.materialfx.adapter; in module-info.java:
module org.example {
requires javafx.controls;
requires javafx.fxml;
requires com.jfoenix;
requires org.glavo.materialfx.adapter;
opens org.example to javafx.fxml;
exports org.example;
}
Does anyone have an idea how can I use this library because the author didn't really explain well how to do so. I would like to mention that it works perfectly in Scene Builder's latest version so I just wonder why it doesn't do so in IntelliJ.

Answer 1

Use Maven (or Gradle) for dependency management
You are using Maven (at least that is what the screenshot shows in Idea, though it could be Gradle making use of a Maven repository).
You should define the dependency as a maven dependency in your pom.xml (or build.gradle) then reimport the build file into Idea.
You should not manually set library dependencies in Idea.
Idea and Maven will recognize that you have a modular project and, when you have the dependency defined in Maven, they will automatically put the new dependent module on the modulepath for compilation and execution.
The maven artifact can be found by searching the maven repository:
https://search.maven.org/artifact/io.github.palexdev/materialfx/11.13.5/jar
The dependency info is:
<dependency>
<groupId>io.github.palexdev</groupId>
<artifactId>materialfx</artifactId>
<version>11.13.5</version>
</dependency>
The module-info for MaterialsFX requires VirtualizedFX. The VirtualizedFX module also needs to be on your module path. The pom.xml file for MaterialsFX has a includes a dependency on io.github.palexdev:virtualizedfx:11.2.6. So the dependent module will be accessible for your build and runtime automatically via Mavan and Idea's inbuilt integration with the Java Platform Module System.
Require the correct module name
The module name for the library is not org.glavo.materialfx.adapter, it is MaterialFX, so you should use:
requires MaterialFX;
NOT:
requires org.glavo.materialfx.adapter;
I recommend that you spend some time studying tutorials for your build tool and the Java Platform Module System.
Example app
Example was created by running the idea new JavaFX project wizard, then modifying the resultant project.
pom.xml
In addition to having a dependency for the MaterialFX library, you also need to have dependencies for both javafx-controls and javafx-fxml.
MaterialFX requires both of these transitively at build and runtime (even if you don't use fxml in your application).
The MaterialFX pom.xml does not have an explicit dependency configuration for JavaFX, so you need to define those dependencies in your project pom.xml (which you would want to do in any case to ensure that your application is using a specific JavaFX version).
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>material</artifactId>
<version>1.0-SNAPSHOT</version>
<name>material</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>18</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>18</version>
</dependency>
<dependency>
<groupId>io.github.palexdev</groupId>
<artifactId>materialfx</artifactId>
<version>11.13.5</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.9.0</version>
<configuration>
<source>18</source>
<target>18</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
module-info.java
module com.example.material {
requires MaterialFX;
exports com.example.material;
}
MaterialApplication.java
package com.example.material;
import io.github.palexdev.materialfx.controls.MFXButton;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class MaterialApplication extends Application {
#Override
public void start(Stage stage) {
stage.setScene(new Scene(new MFXButton("mfx")));
stage.show();
}
public static void main(String[] args) {
launch();
}
}