通常，动画对象意味着通过快速显示创建其运动的幻觉.在JavaFX中，可以通过随时间更改其属性来动画化节点. JavaFX提供了一个名为 javafx.animation 的包.此程序包包含用于为节点设置动画的类.动画是所有这些类的基类.
使用JavaFX，您可以应用动画(过渡)，例如淡入淡出过渡，填充过渡，旋转过渡，缩放过渡，笔画过渡，翻译过渡，路径过渡 b>，顺序转换，暂停转换，并行转换等
所有这些转换都是由包 javafx.animation 中的各个类表示.
要将特定动画应用于节点，您必须按照下面给出的步骤和减去;
使用相应的类创建一个require节点.
实例化要应用的相应转换(动画)类
设置转换的属性和
最后使用动画类的 play()方法播放过渡.
在这个ch我们将讨论基本过渡(旋转，缩放，翻译)的例子.
旋转过渡
以下是演示旋转过渡的程序在JavaFX中.将此代码保存在名为 RotateTransitionExample.java 的文件中.
import javafx.animation.RotateTransition; import javafx.application.Application; import static javafx.application.Application.launch; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.scene.shape.Polygon; import javafx.stage.Stage; import javafx.util.Duration; public class RotateTransitionExample extends Application { @Override public void start(Stage stage) { //Creating a hexagon Polygon hexagon = new Polygon(); //Adding coordinates to the hexagon hexagon.getPoints().addAll(new Double[]{ 200.0, 50.0, 400.0, 50.0, 450.0, 150.0, 400.0, 250.0, 200.0, 250.0, 150.0, 150.0, }); //Setting the fill color for the hexagon hexagon.setFill(Color.BLUE); //Creating a rotate transition RotateTransition rotateTransition = new RotateTransition(); //Setting the duration for the transition rotateTransition.setDuration(Duration.millis(1000)); //Setting the node for the transition rotateTransition.setNode(hexagon); //Setting the angle of the rotation rotateTransition.setByAngle(360); //Setting the cycle count for the transition rotateTransition.setCycleCount(50); //Setting auto reverse value to false rotateTransition.setAutoReverse(false); //Playing the animation rotateTransition.play(); //Creating a Group object Group root = new Group(hexagon); //Creating a scene object Scene scene = new Scene(root, 600, 300); //Setting title to the Stage stage.setTitle("Rotate transition 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); } }使用以下命令从命令提示符编译并执行保存的java文件.
javac RotateTransitionExample.java java RotateTransitionExample
执行时，上述程序生成一个JavaFX窗口，如下所示.
缩放过渡
以下是在JavaFX中演示Scale Transition的程序.将此代码保存在名为 ScaleTransitionExample.java 的文件中.
import javafx.animation.ScaleTransition; import javafx.application.Application; import static javafx.application.Application.launch; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.scene.shape.Circle; import javafx.stage.Stage; import javafx.util.Duration; public class ScaleTransitionExample extends Application { @Override public void start(Stage stage) { //Drawing a Circle Circle circle = new Circle(); //Setting the position of the circle circle.setCenterX(300.0f); circle.setCenterY(135.0f); //Setting the radius of the circle circle.setRadius(50.0f); //Setting the color of the circle circle.setFill(Color.BROWN); //Setting the stroke width of the circle circle.setStrokeWidth(20); //Creating scale Transition ScaleTransition scaleTransition = new ScaleTransition(); //Setting the duration for the transition scaleTransition.setDuration(Duration.millis(1000)); //Setting the node for the transition scaleTransition.setNode(circle); //Setting the dimensions for scaling scaleTransition.setByY(1.5); scaleTransition.setByX(1.5); //Setting the cycle count for the translation scaleTransition.setCycleCount(50); //Setting auto reverse value to true scaleTransition.setAutoReverse(false); //Playing the animation scaleTransition.play(); //Creating a Group object Group root = new Group(circle); //Creating a scene object Scene scene = new Scene(root, 600, 300); //Setting title to the Stage stage.setTitle("Scale transition 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); } }使用以下命令从命令提示符编译并执行保存的java文件.
javac ScaleTransitionExample.java java ScaleTransitionExample
执行时，上述程序生成一个JavaFX窗口，如下所示.
翻译过渡
以下是演示JavaFX中的Translate Transition的程序.将此代码保存在名为 TranslateTransitionExample.java 的文件中.
import javafx.animation.TranslateTransition; import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.scene.shape.Circle; import javafx.stage.Stage; import javafx.util.Duration; public class TranslateTransitionExample extends Application { @Override public void start(Stage stage) { //Drawing a Circle Circle circle = new Circle(); //Setting the position of the circle circle.setCenterX(150.0f); circle.setCenterY(135.0f); //Setting the radius of the circle circle.setRadius(100.0f); //Setting the color of the circle circle.setFill(Color.BROWN); //Setting the stroke width of the circle circle.setStrokeWidth(20); //Creating Translate Transition TranslateTransition translateTransition = new TranslateTransition(); //Setting the duration of the transition translateTransition.setDuration(Duration.millis(1000)); //Setting the node for the transition translateTransition.setNode(circle); //Setting the value of the transition along the x axis. translateTransition.setByX(300); //Setting the cycle count for the transition translateTransition.setCycleCount(50); //Setting auto reverse value to false translateTransition.setAutoReverse(false); //Playing the animation translateTransition.play(); //Creating a Group object Group root = new Group(circle); //Creating a scene object Scene scene = new Scene(root, 600, 300); //Setting title to the Stage stage.setTitle("Translate transition 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); } }使用以下命令从命令提示符编译并执行保存的java文件.
javac TranslateTransitionExample.java java TranslateTransitionExample
执行时，上述程序生成一个JavaFX窗口，如下所示.
除了这些，JavaFX提供了在节点上应用更多转换的类.以下是JavaFX支持的其他类型的转换.
影响节点属性的转换淡化，填充，描边
涉及多个基本过渡的过渡顺序，并行，暂停
转换对象的转换指定的路径路径转换