所以我想知道我如何在課堂中分離事件,並在另一個課程中擁有GUI代碼,而不必直接瞭解彼此。 我最近只在一個類中工作,在這裏我一直在啓動方法中放置GUI代碼和監聽器。javafx - 單獨的EventHandler和gui代碼
這是iv'e迄今所做但按鈕這麼想的工作:
GUI類:
package application;
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
public class GUI extends Application {
Button btn1 = new Button("press me");
@Override
public void start(Stage primaryStage) {
try {
BorderPane root = new BorderPane();
Scene scene = new Scene(root,400,400);
root.setCenter(btn1);
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
}
控制器類:
package application;
import javafx.event.Event;
import javafx.event.EventHandler;
public class Control implements EventHandler<Event>{
GUI gui;
public Control(GUI gui) {
this.gui = gui;
}
@Override
public void handle(Event event) {
Object cmd = event.getSource();
if(gui.btn1.equals(cmd)){
System.out.println("your pressed btn1");
}
}
}
主要類:
package application;
public class Main extends GUI {
public static void main(String[] args) {
launch(args);
GUI gui = new GUI();
Control control = new Control(gui);
}
}
你沒有設置事件處理程序的按鈕 –