使用JFXDialog的JFoenix

Question

我使用的是Jfoenix，JFXDialog不出现。

我做错什么了？以下是代码：

JFXDialogLayout content= new JFXDialogLayout();
content.setHeading(new Text("Error, No selection"));
content.setBody(new Text("No student selected"));
StackPane stackpane = new StackPane();
JFXDialog dialog =new JFXDialog(stackpane, content, JFXDialog.DialogTransition.CENTER);
JFXButton button=new JFXButton("Okay");
button.setOnAction(new EventHandler<ActionEvent>(){
    @Override
    public void handle(ActionEvent event){
        dialog.close();
    }

});
content.setActions(button);
dialog.show();

Answer 1

您要做的是将您的JFXDialog添加到StackPane并显示您的对话框。通过

JFXDialog dialog =new JFXDialog(stackpane, content, JFXDialog.DialogTransition.CENTER);
....
....
....
dialog.show();

实际上，这是在您的对话框创建的堆栈窗格中显示对话框。问题是堆栈窗格从未显示，因此对话框也不会显示。这就像在关闭计算机时试图打开文档一样。

首先，这部分是完全正确的

JFXDialogLayout content= new JFXDialogLayout();
content.setHeading(new Text("Error, No selection"));
content.setBody(new Text("No student selected"));
StackPane stackpane = new StackPane();
JFXDialog dialog =new JFXDialog(stackpane, content, JFXDialog.DialogTransition.CENTER);
JFXButton button=new JFXButton("Okay");
button.setOnAction(new EventHandler<ActionEvent>(){
    @Override
    public void handle(ActionEvent event){
        dialog.close();
    }
});
content.setActions(button);

在这里之后，如果stack窗格是根窗格，那么只需创建场景，然后分别显示primaryStage和对话框(实际上，您不必先显示primaryStage，然后显示对话框，但这个顺序更有意义)。

Scene scene = new Scene(stackpane, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
dialog.show();

如果已经有另一个根窗格，则在显示primaryStage和对话框之前向其添加堆栈窗格。

AnchorPane root = new AnchorPane();
....
.... //Some other Nodes here
JFXDialogLayout content= new JFXDialogLayout();
content.setHeading(new Text("Error, No selection"));
content.setBody(new Text("No student selected"));
StackPane stackPane = new StackPane();
JFXDialog dialog =new JFXDialog(stackPane, content, JFXDialog.DialogTransition.CENTER);
JFXButton button=new JFXButton("Okay");
button.setOnAction(new EventHandler<ActionEvent>(){
    @Override
    public void handle(ActionEvent event){
        dialog.close();
    }
});
content.setActions(button);
Scene scene = new Scene(root, 300, 250);
root.getChildren().add(stackPane);
primaryStage.setScene(scene);
primaryStage.show();
dialog.show();

primaryStage来自于应用程序类的过度启动方法。下面是以根窗格作为堆栈窗格的一个。

@Override
public void start(Stage primaryStage) throws Exception {

    JFXDialogLayout content= new JFXDialogLayout();
    content.setHeading(new Text("Error, No selection"));
    content.setBody(new Text("No student selected"));
    StackPane stackpane = new StackPane();
    JFXDialog dialog =new JFXDialog(stackpane, content, JFXDialog.DialogTransition.CENTER);
    JFXButton button=new JFXButton("Okay");
    button.setOnAction(new EventHandler<ActionEvent>(){
        @Override
        public void handle(ActionEvent event){
            dialog.close();
        }
    });
    content.setActions(button);

    Scene scene = new Scene(stackpane, 300, 250);
    primaryStage.setScene(scene);
    dialog.show();
    primaryStage.show();
}