- JavaFX Tutorial
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- JavaFX Properties of 2D Objects
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- JavaFX - Creating Stacked Area Chart
- JavaFX - Creating Stacked Bar Chart
- JavaFX Layout Panes
- JavaFX - Layout Panes
- JavaFX - HBox Layout
- JavaFX - VBox Layout
- JavaFX - BorderPane Layout
- JavaFX - StackPane Layout
- JavaFX - TextFlow Layout
- JavaFX - AnchorPane Layout
- JavaFX - TilePane Layout
- JavaFX - GridPane Layout
- JavaFX - FlowPane Layout
- JavaFX CSS
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- Media with JavaFX
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JavaFX - Layout Anchorpane
The Anchor Pane allows the edges of child nodes to be anchored to an offset from the anchor pane's edges. If the anchor pane has a border and/or padding set, the offsets will be measured from the inside edge of those insets.
If we use an Anchor pane in our application, the nodes in it are anchored at a particular distance from the pane.
The class named AnchorPane of the package javafx.scene.layout represents the Anchor Pane. After a node is added, you need to set an anchor to it from the bounds of the pane in all directions (Top, Bottom, Right and Left). To set the anchor, this class provides four methods, which are – setBottomAnchor(), setTopAnchor(), setLeftAnchor(), setRightAnchor(). To these methods, you need to pass a double value representing the anchor.
Example
The following program is an example of the Anchor Pane layout. In this, we are inserting a rotating cylinder in an anchor pane. At the same time, we are setting it at a distance of 50 units from the pane from all directions (Top, Left, Right, Bottom).
Save this code in a file with the name AnchorPaneExample.java.
import javafx.animation.RotateTransition; import javafx.collections.ObservableList; import javafx.scene.Scene; import javafx.scene.layout.AnchorPane; import javafx.scene.paint.Color; import javafx.scene.paint.PhongMaterial; import javafx.scene.shape.Cylinder; import javafx.scene.transform.Rotate; import javafx.stage.Stage; import javafx.util.Duration; public class AnchorPaneExample extends Application { @Override public void start(Stage stage) { //Drawing a Cylinder Cylinder cylinder = new Cylinder(); //Setting the properties of the Cylinder cylinder.setHeight(180.0f); cylinder.setRadius(100.0f); //Preparing the phong material of type diffuse color PhongMaterial material = new PhongMaterial(); material.setDiffuseColor(Color.BLANCHEDALMOND); //Setting the diffuse color material to Cylinder5 cylinder.setMaterial(material); //Setting rotation transition for the cylinder RotateTransition rotateTransition = new RotateTransition(); //Setting the duration for the transition rotateTransition.setDuration(Duration.millis(1000)); //Setting the node for the transition rotateTransition.setNode(cylinder); //Setting the axis of the rotation rotateTransition.setAxis(Rotate.X_AXIS); //Setting the angle of the rotation rotateTransition.setByAngle(360); //Setting the cycle count for the transition rotateTransition.setCycleCount(RotateTransition.INDEFINITE); //Setting auto reverse value to false rotateTransition.setAutoReverse(false); //playing the animation rotateTransition.play(); //Creating an Anchor Pane AnchorPane anchorPane = new AnchorPane(); //Setting the anchor to the cylinder AnchorPane.setTopAnchor(cylinder, 50.0); AnchorPane.setLeftAnchor(cylinder, 50.0); AnchorPane.setRightAnchor(cylinder, 50.0); AnchorPane.setBottomAnchor(cylinder, 50.0); //Retrieving the observable list of the Anchor Pane ObservableList list = anchorPane.getChildren(); //Adding cylinder to the pane list.addAll(cylinder); //Creating a scene object Scene scene = new Scene(anchorPane); //Setting title to the Stage stage.setTitle("Anchor Pane Example"); //Adding scene to the stage stage.setScene(scene); //Displaying the contents of the stage stage.show(); } public static void main(String args[]){ launch(args); } }
Compile and execute the saved java file from the command prompt using the following commands.
javac AnchorPaneExample.java java AnchorPaneExample
On executing, the above program generates a JavaFX window as shown below.