PlayFX is a light framework for managing multiple scenes in JavaFX. More specifically, it provides an easy way to manage the different states of a JavaFX application and to pass from one to another. In addition, it comes with an embedded Dependency Injection system.

The code required to launch a JavaFX application with PlayFX is pretty close to the standard JavaFX's API.

The heart of the framework is the Play class, which represents a set of Scenes. Its use is demonstrated in the following code snippet :

public class Launcher extends Application {
	
  @Override
  public void start(Stage primaryStage) throws IOException {	
    // Initialize the play
    Play play = new Play(primaryStage);

    // Prepare a new scene and call it "welcome". 
    // It is semantically equal to FXMLLoader.load
    play.prepare("welcome", WelcomeController.class.getResource("welcome.fxml"));

    // Put the scene "welcome" on the stage. It is semantically equal to stage.setScene
    play.setScene("welcome");

    // Finally, let the show begin ! It is semantically equal to stage.show
    play.show();
  }

  public static void main(String[] args) {
    launch(args);
  }
}

Once a scene has been prepared, the setScene method can be used to show it:

// into WelcomeController
play.prepare("users", UsersController.class.getResource("users.fxml"));
play.setScene("users");

This method has optional parameters that can be specified to trigger an animated transition when opening the new scene.

PlayFX's main advantage is its ability to inject controllers. Values to inject can be specified via three different ways :

• command line arguments,
• custom factory method,
• property file.

Detailed explanations can be found in the relevant wiki's section.

A controller can ask for a value by annotating a field with @Inject :

public class LoginController implements Initializable {
	
    @Inject private String usr;                      // will inject the value "usr"
    @Inject private String pwd;                      // will inject the value "pwd"
    @Inject(name="app.title") private String title;  // will inject the value "app.title"
	
    // rest of the class
}

Usage, documentation and samples can be found on PlayFX's wiki.

As of now, PlayFX is not mature enough to be delivered through Maven. Hence, one has to build library's JAR manually in order to use it in a project.

Important: you must run Maven 3.x with a JRE 9 in order to launch the build.

• Clone the repository:

git clone https://github.com/KazeJiyu/PlayFX.git

• Launch maven build:

cd PlayFX
mvn clean package

• The JAR file should have been generated in target as fr.kazejiyu.playfx.jar

PlayFX is Java 9-aware. Its Maven build generates multi-release JARs that can be used indifferently from Java 8 and Java 9 applications.