package application;
import java.awt.Button;
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.StackPane;
public class Main extends Application {
Button button; //Declare Button
public static void main(String[] args) {
launch(args); //calls application
}
#Override
public void start(Stage primaryStage) throws Exception {
//comes from application pack
primaryStage.setTitle("Title Of Window"); //Main Stage
button = new Button (); //Creates Button
button.setLabel("Click Me");
StackPane layout = new StackPane();
layout.getChildren().add(button); //Button in Scene
Scene scene = new Scene (layout, 300, 250); //Sets Scene
primaryStage.setScene(scene); //Stage and Scene
primaryStage.show();
}
Hey guys, so this is first time I am creating something in JavaFX and I was wondering why doesn't my button in Scene add in Layout.GetChildren() line, it keeps on displaying red line underneath add. I am using Eclipse IDE.
you have imported import java.awt.Button, you must import Button class in the javafx package.
Related
I'm trying to write the simplest code to start learning how JavaFX works. Here is my code:
package app;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class mainClass extends Application{
Stage primaryStage;
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage stage) throws Exception {
primaryStage = stage;
StackPane layout = new StackPane();
Scene scene = new Scene(layout, 300, 300);
primaryStage.setScene(scene);
primaryStage.show();
}
}
It should just show an empty window. My compilator gives no errors, but nothing shows up, even if I can see my program running in my dock. How is this possible? I'm sure I'm missing some stupid simple thing, but I cannot figure out what it is.
I'm creating an app with javafx and I want to separate ui files.
Like: Tabs in separate file and just import and create new Tab in main app.
I have tried it, but when I try to set it on main app like borderPane.setCenter(tabPane); it says that The method setCenter(Node) in the type BorderPane is not applicable for the arguments (Tabs)
Main.java app code
import javafx.application.Application;
import javafx.scene.layout.*;
import javafx.scene.paint.*;
import javafx.scene.*;
import javafx.stage.Stage;
import utils.Tabs;
public class Main extends Application {
#Override
public void start(Stage window) throws Exception {
Group root = new Group();
Scene scene = new Scene(root, 400, 250, Color.WHITE);
BorderPane borderPane = new BorderPane();
Tabs tabs = new Tabs();
// bind to take available space
borderPane.prefHeightProperty().bind(scene.heightProperty());
borderPane.prefWidthProperty().bind(scene.widthProperty());
borderPane.setCenter(tabs);
root.getChildren().add(borderPane);
window.setTitle("Computer Security — Demos");
window.setScene(scene);
window.show();
}
public static void main(String[] args) {
launch(args);
}
}
Tabs.java
import javafx.geometry.Pos;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.scene.layout.HBox;
public class Tabs extends TabPane {
public Tabs() {
TabPane tabPane = new TabPane();
Tab tab = new Tab("Tab: ");
HBox hbox = new HBox();
hbox.getChildren().add(new Label("Tab"));
hbox.setAlignment(Pos.CENTER);
tab.setContent(hbox);
tabPane.getTabs().add(tab);
}
}
The buttons dont give a console output. Two buttons are in a Vbox at the bottom of a BorderPane and should print "new" or "continue" when pressed.
I followed a tutorial and tried to extend it to one more button.
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class Main extends Application implements EventHandler<ActionEvent> {
Button btn1, btn2;
public static void main(String[] args) {
launch(args);
}
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("title");
Button btn1 = new Button("new");
Button btn2 = new Button ("continue");
btn1.setOnAction(this);
btn2.setOnAction(this);
VBox vb = new VBox (btn1, btn2);
vb.setSpacing(10);
vb.setPadding(new Insets(20));
BorderPane root = new BorderPane();
root.setBottom(vb);
Scene scene = new Scene (root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
}
#Override
public void handle(ActionEvent event) {
if (event.getSource()==btn1) {
System.out.println("new!");
} else if (event.getSource()==btn2) {
System.out.println("continue!");
}
}
}
nothing happens, but there should be a output of "new or continue"
Remove class from buttons.
This way the code will use buttons from fields, instead of creating new ones.
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("title");
btn1 = new Button("new");
btn2 = new Button ("continue");
// the rest of the code will be the same
}
As stated in the title, I have fxml files, I have a UI that is set up with three labels/buttons up top and the lower half of the window has a pane. Every time a label/button is clicked, the pane must switch to that corresponding fxml file. So in other words, the pane must always be in the same position, kind of like a tabbed layout but without tabs.
I know I can achieve this with just loading a new instance of an fxml file but, I want to avoid that because when a user click on a tab he previously was on, he should be able to see his earlier input.
I have some main.java that starts the program. Some controller.java that controls the UI when it is first loaded, and some fxml file corresponding to that initial view. How can I go about implementing this transition functionality? P.S. I am very novice at JavaFX.
Here is a MCVE of how you can achieve it.
It can of course be implemented using FXML :
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
public class StageTest extends Application{
private Pane pane1, pane2, mainPane;
#Override
public void start(Stage stage) throws Exception {
stage.setTitle("Switch Panes");
Button button1 = new Button("Show Pane 1");
button1.setOnAction(e -> showPane1());
Button button2 = new Button("Show Pane 2");
button2.setOnAction(e -> showPane2());
HBox buttonsPane = new HBox(5.);
buttonsPane.getChildren().addAll(button1, button2);
pane1 = getPane("PANE ONE");
pane2 = getPane("PANE TWO");
mainPane = new StackPane(pane1);
BorderPane root = new BorderPane();
root.setTop(buttonsPane);
root.setCenter(mainPane);
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
private void showPane1() {
mainPane.getChildren().clear();
mainPane.getChildren().add(pane1);
}
private void showPane2() {
mainPane.getChildren().clear();
mainPane.getChildren().add(pane2);
}
private Pane getPane(String txt) {
VBox pane = new VBox();
pane.getChildren().addAll(new TextArea(txt+" add text here: "));
return pane;
}
public static void main(String[] args) {
launch(args);
}
}
HiEveryone,
I'm new Javafx and trying to change the float of this button as to Right side from the current Left side.. How to do that?
I'm using simply Pane as a container at the moment.
Have a look into this screenshot:
How to do that? ..pls help
Thanks in advance!
EDITED
Source code:
package sample;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
import javafx.scene.control.TextField;
import javafx.scene.control.Button;
public class Main extends Application {
#Override
public void start (Stage primaryStage){
primaryStage.setTitle("Modern web browser made by Rajendra arora.");
WebView wv = new WebView();
wv.setLayoutX(0.0);
wv.setLayoutY(40.0);
wv.setPrefHeight(Double.MAX_EXPONENT);
wv.setPrefWidth(Double.MAX_EXPONENT);
WebEngine we = wv.getEngine();
we.load("http://www.google.com/");
Button btn=new Button("Go");
TextField tf = new TextField("http://www.google.com/");
tf.setLayoutX(1.0);
tf.setPrefWidth(Double.MAX_EXPONENT);
tf.setPrefHeight(25.0);
Pane sp = new Pane();
sp.getChildren().add(tf);
sp.getChildren().add(btn);
sp.getChildren().add(wv);
Scene scene = new Scene(sp, 600, 500);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Use a HBox to hold the textfield and button, later add it to the Pane
HBox hbox = new HBox();
hbox.getChildren().addAll(tf, btn);
Pane sp = new Pane();
sp.getChildren().add(hbox);
sp.getChildren().add(wv);