如何在 JavaFX 中创建 Dialog?
Dialog 是一个图形元素,窗口会向窗口显示信息并接收响应。你可以通过实例化 javafx.scene.control.Dialog 类来创建 dialog。
示例
以下示例演示了如何创建 Dialog。
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonBar.ButtonData;
import javafx.scene.control.ButtonType;
import javafx.scene.control.Dialog;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
public class DialogExample extends Application {
@Override
public void start(Stage stage) {
//Creating a dialog
Dialog<String> dialog = new Dialog<String>();
//Setting the title
dialog.setTitle("Dialog");
ButtonType type = new ButtonType("Ok", ButtonData.OK_DONE);
//Setting the content of the dialog
dialog.setContentText("This is a sample dialog");
//Adding buttons to the dialog pane
dialog.getDialogPane().getButtonTypes().add(type);
//Setting the label
Text txt = new Text("Click the button to show the dialog");
Font font = Font.font("verdana", FontWeight.BOLD, FontPosture.REGULAR, 12);
txt.setFont(font);
//Creating a button
Button button = new Button("Show Dialog");
//Showing the dialog on clicking the button
button.setOnAction(e -> {
dialog.showAndWait();
});
//Creating a vbox to hold the button and the label
HBox pane = new HBox(15);
//Setting the space between the nodes of a HBox pane
pane.setPadding(new Insets(50, 150, 50, 60));
pane.getChildren().addAll(txt, button);
//Creating a scene object
Scene scene = new Scene(new Group(pane), 595, 250, Color.BEIGE);
stage.setTitle("Dialog");
stage.setScene(scene);
stage.show();
}
public static void main(String args[]){
launch(args);
}
}输出

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