I have just started with JavaFX. I'm in the process of developing a GUI for my program, and I've used SceneBuilder to design my GUI. I currently have a main class that uses an FXMLLoader to load an .fxml file and displays it. This FXML file has another class called "Controller" as controller. As I said, I haven't had that much to do with JavaFX, so it's possible that I'm just doing it wrong.
Now I have 2 problems: First, I want to communicate between the two classes (code follows). Second, I would like to know how to integrate the code from the main class of the GUI into my already existing main class, I already tried it, but I always got only error messages (stacktrace and code follows).
isi_ko
My GUI Main Class
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
Parent normalParent = FXMLLoader.load(getClass().getResource("normalLayout.fxml"));
primaryStage.setTitle("Test");
primaryStage.setScene(new Scene(normalParent, primaryStage.getWidth(), primaryStage.getHeight()));
primaryStage.show();
}
}
My GUI Controller Class
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.stage.Stage;
public class Controller implements EventHandler<ActionEvent> {
@FXML Label activePercent;
@FXML Label activeLabel;
@FXML Label activeNumber;
@FXML Label lastLable;
@FXML Label lastNumber;
@FXML Label nextLabel;
@FXML Label nextNumber;
@FXML Label faderValue1;
@FXML Label faderValue2;
@FXML Label faderValue3;
@FXML Label faderValue4;
@FXML Label faderValue5;
@FXML
public void test() {
}
@Override
public void handle(ActionEvent event) {
getFaderValueLable(1).setText("1");
getFaderValueLable(2).setText("2");
getFaderValueLable(3).setText("3");
getFaderValueLable(4).setText("4");
getFaderValueLable(5).setText("5");
}
public Label getFaderValueLable(int i){
switch (i){
case 1:
return faderValue1;
case 2:
return faderValue2;
case 3:
return faderValue3;
case 4:
return faderValue4;
case 5:
return faderValue5;
default:
return null;
}
}
}
My normal Main Class (without GUI Code)
import com.fazecast.jSerialComm.SerialPort;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.stage.Stage;
public class Main{
Fader[] faders;
final int baudRate = 1000000; //The Speed that is Used to Communicate with the Arduino
private int physicalFaderAmount; //Amount of Physical Faders, counted from 1
private int faderPages; //Amount of Faderpages, counted from 1
private int activeFaderpage; //The Currently active "physical" Faderpage
private ArduinoController arduinoController; //The Class that communicates with the Arduino
private EosOscController oscController; //The Class that Communicates with Eos
Main(String[] args) {
//Todo Redo this part when UI done
//at the Moment here are just some default values
activeFaderpage = 0;
physicalFaderAmount = 5;
faderPages = 4;
faders = new Fader[physicalFaderAmount];
for (int i = 0; i < physicalFaderAmount; i++){
faders[i] = new Fader(faderPages, i);
}
oscController = new EosOscController(8001, 8000, "192.168.178.133", this);
arduinoController = new ArduinoController(SerialPort.getCommPort("COM4"), this);
}
public static void main(String[] args) {
Main main = new Main(args);
}
// This Class is for Storing Information about a particular physical Fader
public class Fader {
public int[][] values;
// The last 3 Falues the Fader has on the Different Faderpages.
// The First Koordinate is for the Page, the second coordinate is for which of the last 3 Values you want to use.
// The First Value of Every page is the Current value of the Fader
// The Others are for detecting inconsistent Potivalues
public int faderID; //The number of the Physical Fader, starting from 0.
// Uses local values, not OSC
// Sets the Value of the Fader
// Can send the new Value directly to the Arduino or Eos
public void setValue(int physicalPage, int value, boolean sendToEos, boolean sendToArduino) {
if (value != this.values[physicalPage][2] || (Math.max(values[physicalPage][1], value) - Math.min(values[physicalPage][1], value)) > 1) {
values[physicalPage][0] = value;
//Todo: Test this
if (sendToEos) {
oscController.setFaderIntensity(physicalPage, faderID, value / 100.0D, true);
}
//Todo Test this
if (sendToArduino) {
arduinoController.sendMessage(new ArduinoController.MessageToArduino(faderID, value), true);
}
}
values[physicalPage][2] = values[physicalPage][1];
values[physicalPage][1] = value;
}
Fader(int pages, int faderID) {
values = new int[pages][3];
this.faderID = faderID;
}
}
}
My normal Main Class (with GUI Code)
import com.fazecast.jSerialComm.SerialPort;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application{
Fader[] faders;
final int baudRate = 1000000; //The Speed that is Used to Communicate with the Arduino
private int physicalFaderAmount; //Amount of Physical Faders, counted from 1
private int faderPages; //Amount of Faderpages, counted from 1
private int activeFaderpage; //The Currently active "physical" Faderpage
private ArduinoController arduinoController; //The Class that communicates with the Arduino
private EosOscController oscController; //The Class that Communicates with Eos
Main() {
//Todo Redo this part when UI done
//at the Moment here are just some default values
activeFaderpage = 0;
physicalFaderAmount = 5;
faderPages = 4;
faders = new Fader[physicalFaderAmount];
for (int i = 0; i < physicalFaderAmount; i++){
faders[i] = new Fader(faderPages, i);
}
oscController = new EosOscController(8001, 8000, "192.168.178.133", this);
arduinoController = new ArduinoController(SerialPort.getCommPort("COM4"), this); // For PC
// arduinoController = new ArduinoController(SerialPort.getCommPort("ttyACM0"), this); //For Raspberry Pi
}
public static void main(String[] args) {
launch();
}
@Override
public void start(Stage primaryStage) throws Exception {
Parent normalParent = FXMLLoader.load(getClass().getResource("normalLayout.fxml"));
primaryStage.setTitle("Test");
primaryStage.setScene(new Scene(normalParent, primaryStage.getWidth(), primaryStage.getHeight()));
primaryStage.show();
}
// This Class is for Storing Information about a particular physical Fader
public class Fader {
public int[][] values;
// The last 3 Falues the Fader has on the Different Faderpages.
// The First Koordinate is for the Page, the second coordinate is for which of the last 3 Values you want to use.
// The First Value of Every page is the Current value of the Fader
// The Others are for detecting inconsistant Potivalues
public int faderID; //The number of the Physical Fader, starting from 0.
// Uses local values, not OSC
// Sets the Value of the Fader
// Can send the new Value directly to the Arduino or Eos
public void setValue(int physicalPage, int value, boolean sendToEos, boolean sendToArduino) {
if (value != this.values[physicalPage][2] || (Math.max(values[physicalPage][1], value) - Math.min(values[physicalPage][1], value)) > 1) {
values[physicalPage][0] = value;
//Todo: Test this
if (sendToEos) {
oscController.setFaderIntensity(physicalPage, faderID, value / 100.0D, true);
}
//Todo Test this
if (sendToArduino) {
arduinoController.sendMessage(new ArduinoController.MessageToArduino(faderID, value), true);
}
}
values[physicalPage][2] = values[physicalPage][1];
values[physicalPage][1] = value;
}
Fader(int pages, int faderID) {
values = new int[pages][3];
this.faderID = faderID;
}
}
}
Stacktrace for Main Class with GUI Code
Exception in Application constructor
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Unable to construct Application instance: class Main
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:907)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$1(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoSuchMethodException: Main.<init>()
at java.lang.Class.getConstructor0(Class.java:3082)
at java.lang.Class.getConstructor(Class.java:1825)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$7(LauncherImpl.java:818)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$3(WinApplication.java:177)
... 1 more
Exception running application Main
Process finished with exit code 1
