JavaFX RadioButton Tutorial with Examples
1. JavaFX RadioButton
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RadioButton is a class extends from ToggleButton, the same as a ToggleButton, radio button has the two states selected and deselected. When RadioButtons are combined into a group, at a time only one button is selected. Unlike ToggleButton, users can only deselect a RadioButton by selecting a different RadioButton in the same group.
ToggleButton:
RadioButton:
// Group
ToggleGroup group = new ToggleGroup();
// Radio 1: Male
RadioButton button1 = new RadioButton("Male");
button1.setToggleGroup(group);
button1.setSelected(true);
// Radio 3: Female.
RadioButton button2 = new RadioButton("Female");
button2.setToggleGroup(group);
You can also set up the icons for RadioButton by using setGraphic method.
InputStream is1 = getClass().getResourceAsStream("/org/o7planning/javafx/icon/male-16.png");
Image img1= new Image(is1);
radioButton.setGraphic(new ImageView(img1));
2. RadioButton Example
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RadioButtonDemo.java
package org.o7planning.javafx.radiobutton;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
public class RadioButtonDemo extends Application {
@Override
public void start(Stage stage) {
Label label = new Label("Your Gender: ");
// Group
ToggleGroup group = new ToggleGroup();
// Radio 1: Male
RadioButton button1 = new RadioButton("Male");
button1.setToggleGroup(group);
button1.setSelected(true);
// Radio 3: Female.
RadioButton button2 = new RadioButton("Female");
button2.setToggleGroup(group);
HBox root = new HBox();
root.setPadding(new Insets(10));
root.setSpacing(5);
root.getChildren().addAll(label, button1, button2);
Scene scene = new Scene(root, 400, 150);
stage.setScene(scene);
stage.setTitle("JavaFX RadioButton (o7planning.org)");
scene.setRoot(root);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
3. Processing Events for RadioButton
Typically, the application performs an action when one of the radio buttons in the group is selected.
RadioButtonEventDemo.java
package org.o7planning.javafx.radiobutton;
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.Toggle;
import javafx.scene.control.ToggleGroup;
import javafx.scene.image.Image;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
@SuppressWarnings("unused")
public class RadioButtonEventDemo extends Application {
@Override
public void start(Stage stage) {
Label label = new Label("Your Gender: ");
Label labelInfo = new Label();
labelInfo.setTextFill(Color.BLUE);
// Group
ToggleGroup group = new ToggleGroup();
group.selectedToggleProperty().addListener(new ChangeListener<Toggle>() {
@Override
public void changed(ObservableValue<? extends Toggle> ov, Toggle old_toggle, Toggle new_toggle) {
// Has selection.
if (group.getSelectedToggle() != null) {
RadioButton button = (RadioButton) group.getSelectedToggle();
System.out.println("Button: " + button.getText());
labelInfo.setText("You are " + button.getText());
}
}
});
// Radio 1: Male
RadioButton button1 = new RadioButton("Male");
button1.setToggleGroup(group);
button1.setSelected(true);
// Radio 2: Female.
RadioButton button2 = new RadioButton("Female");
button2.setToggleGroup(group);
HBox root = new HBox();
root.setPadding(new Insets(10));
root.setSpacing(5);
root.getChildren().addAll(label, button1, button2, labelInfo);
Scene scene = new Scene(root, 400, 150);
stage.setScene(scene);
stage.setTitle("JavaFX RadioButton (o7planning.org)");
scene.setRoot(root);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
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