CODEWITHSUNDEEP
javafxfxmlscenebuilder
Reza Feiz
Reza Feiz

Reputation: 31

How to perform some action when the Tab is selected in javafx?

I have a Tab with "total" id and get it in a listener with switch: 

 switch ((event.getSource().toString().substring(event.getSource().toString().indexOf("=")+1,event.getSource().toString().indexOf(",")))) {
        case "signin":
            changeScene(signin, "atmOperation");
            User user = new User();
            user.check();
            break;

        case "signout":
            changeScene(signout, "login");
            break;
        case "signup":
            changeScene(signup, "signup");
            break;
        case "back":
            changeScene(back, "atmOperation");
            break;
        case "exit":
            stage = (Stage) exit.getScene().getWindow();
            stage.close();
            break;
        case "total":
            System.out.print(total.isSelected());
            break;

And this is my layout fxml file: 

<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.Pane?>

<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="443.0" prefWidth="610.0" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
   <children>
      <TabPane fx:id="tabPane" layoutY="37.0" nodeOrientation="RIGHT_TO_LEFT" onContextMenuRequested="#event" prefHeight="400.0" prefWidth="610.0" tabClosingPolicy="UNAVAILABLE">
        <tabs>
          <Tab fx:id="total" closable="false" text="x" onSelectionChanged="#event">
            <content>
              <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
            </content>
          </Tab>
          <Tab text="x">
            <content>
              <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
            </content>
          </Tab>
            <Tab text="y">
               <content>
                  <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
               </content>
            </Tab>
            <Tab text="y">
               <content>
                  <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0" />
               </content>
            </Tab>
        </tabs>
      </TabPane>
   </children>
</Pane>

I want to handle programm if user click on tab with total id but i used onSelectionChanged that can not help me! How i can handle it if user click on total id tab?

Upvotes: 1

Views: 7081

Answers (2)

jbilander
jbilander

Reputation: 651

You can use onSelectionChanged for that, in your Controller event method, just check if the totalTab is selected or not, like below, please note that the name of the annotated tab must match the fx:id set in the fxml file, and the method name, in this case event must match the name onSelectionChanged="#event" in the fxml file.

  public class Controller {

      @FXML
      private Tab total;

      @FXML
      void event(Event ev) {
          if (total.isSelected()) {
              System.out.println("Tab is Selected");
              //Do stuff here
          }
      }
  }

or pure programmatically:

    total.setOnSelectionChanged(event -> {
        if (total.isSelected()) {
            System.out.println("Tab is Selected");
            //Do stuff here
        }
    });

Upvotes: 5

HanaKenzou
HanaKenzou

Reputation: 41

You can do that with either the selectedItemProperty or selectedIndexProperty . Below is the solution using selectedItemProperty. The switch case is not needed. 

// starts here
tabPane.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Tab>() { 
    @Override 
    public void changed(ObservableValue<? extends Tab> observable, Tab oldTab, Tab newTab) {
        if(newTab.equals (total)) {            
            System.out.print(total.isSelected());
        }
    }
});

Upvotes: 4

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