顺序，并行，暂停（Sequential, Parallel, Pause）

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2023-12-01

顺序转换

以下是演示JavaFX中的顺序转换的程序。将此代码保存在名为SequentialTransitionExample.java的文件中。

import javafx.animation.PathTransition; 
import javafx.animation.ScaleTransition; 
import javafx.animation.SequentialTransition; 
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.scene.shape.CubicCurveTo; 
import javafx.scene.shape.MoveTo; 
import javafx.scene.shape.Path; 
import javafx.stage.Stage;  
import javafx.util.Duration; 
public class SequentialTransitionExample 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); 
      //Instantiating the path class 
      Path path = new Path(); 
      //Creating the MoveTo path element 
      MoveTo moveTo = new MoveTo(100, 150); 
      //Creating the Cubic curve path element 
      CubicCurveTo cubicCurveTo = new CubicCurveTo(400, 40, 175, 250, 500, 150); 
      //Adding the path elements to Observable list of the Path class 
      path.getElements().add(moveTo); 
      path.getElements().add(cubicCurveTo);     
      //Creating path Transition 
      PathTransition pathTransition = new PathTransition(); 
      //Setting the duration for the transition 
      pathTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      pathTransition.setNode(circle); 
      //Setting the path for the transition  
      pathTransition.setPath(path); 
      //Setting the orientation of the path 
      pathTransition.setOrientation(
         PathTransition.OrientationType.ORTHOGONAL_TO_TAN GENT); 
      //Setting the cycle count for the transition 
      pathTransition.setCycleCount(5); 
      //Setting auto reverse value to false 
      pathTransition.setAutoReverse(false); 
      //Playing the animation 
      pathTransition.play();         
      //Creating Translate Transition 
      TranslateTransition translateTransition = new TranslateTransition(); 
      //Setting the duration for the transition 
      pathTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      pathTransition.setNode(circle); 
      //Setting the length of the transition along x axis 
      translateTransition.setByX(300); 
      //Setting the cycle count for the stroke 
      translateTransition.setCycleCount(5); 
      //Setting auto reverse value to false 
      translateTransition.setAutoReverse(false);  
      //Applying scale Transition to the circle 
      ScaleTransition scaleTransition = new ScaleTransition();       
      //Setting the duration for the transition 
      pathTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      pathTransition.setNode(circle); 
      //Setting the dimensions for scaling 
      scaleTransition.setByY(1.5); 
      scaleTransition.setByX(1.5);  
      //Setting the cycle count for the translation 
      scaleTransition.setCycleCount(5); 
      //Setting auto reverse value to false 
      scaleTransition.setAutoReverse(false);       
      //Applying Sequential Translation to the circle 
      SequentialTransition sequentialTransition = new SequentialTransition(circle, 
         pathTransition, translateTransition, scaleTransition ); 
      //Playing the animation 
      sequentialTransition.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("Seqiential 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 SequentialTransitionExample.java 
java SequentialTransitionExample

执行时，上面的程序生成一个JavaFX窗口，如下所示。

并行过渡

以下是演示JavaFX中的并行转换的程序。将此代码保存在名为parallelTransitionExample.java的文件中。

import javafx.animation.ParallelTransition; 
import javafx.animation.PathTransition; 
import javafx.animation.ScaleTransition; 
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.CubicCurveTo; 
import javafx.scene.shape.MoveTo; 
import javafx.scene.shape.Path; 
import javafx.scene.shape.Rectangle; 
import javafx.stage.Stage; 
import javafx.util.Duration; 
public class parallelTransitionExample extends Application { 
   @Override 
   public void start(Stage stage) {      
      //Drawing a Rectangle 
      Rectangle rectangle = new Rectangle(); 
      //Setting the position of the rectangle 
      rectangle.setX(75.0f); 
      rectangle.setY(75.0f); 
      //Setting the width of the rectangle 
      rectangle.setWidth(100.0f); 
      //Setting the height of the rectangle 
      rectangle.setHeight(100.0f);      
      //setting the color of the rectangle 
      rectangle.setFill(Color.BLUEVIOLET); 
      //Instantiating the path class 
      Path path = new Path(); 
      //Creating the MoveTo path element 
      MoveTo moveTo = new MoveTo(100, 150); 
      //Creating the Cubic curve path element 
      CubicCurveTo cubicCurveTo = new CubicCurveTo(400, 40, 175, 250, 500, 150); 
      //Adding the path elements to Observable list of the Path class 
      path.getElements().add(moveTo); 
      path.getElements().add(cubicCurveTo);     
      //Creating Path Transition  
      PathTransition pathTransition = new PathTransition(); 
      //Setting the duration of the transition 
      pathTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      pathTransition.setNode(rectangle); 
      //Setting the path for the transition  
      pathTransition.setPath(path); 
      //Setting the orientation of the path 
      pathTransition.setOrientation(
         PathTransition.OrientationType.ORTHOGONAL_TO_TAN GENT); 
      //Setting the cycle count for the transition 
      pathTransition.setCycleCount(5); 
      //Setting auto reverse value to false 
      pathTransition.setAutoReverse(false); 
      //Playing the animation 
      pathTransition.play();         
      //Creating Translate Transition 
      TranslateTransition translateTransition = new TranslateTransition(); 
      //Setting the duration for the transition 
      translateTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      translateTransition.setNode(rectangle); 
      //Setting the axis and length of the transition 
      translateTransition.setByX(300); 
      //Setting the cycle count of the transition 
      translateTransition.setCycleCount(5); 
      //Setting auto reverse value to false 
      translateTransition.setAutoReverse(false);  
      //Creating scale Transition 
      ScaleTransition scaleTransition = new ScaleTransition(); 
      //Setting the duration for the transition  
      translateTransition.setDuration(Duration.millis(1000)); 
      //Setting the node for the transition 
      translateTransition.setNode(rectangle); 
      //Setting the dimensions for scaling 
      scaleTransition.setByY(1.5); 
      scaleTransition.setByX(1.5); 
      //Setting the cycle count for the translation  
      scaleTransition.setCycleCount(5); 
      //Setting auto reverse value to true 
      scaleTransition.setAutoReverse(false);       
      //Applying parallel Translation to the circle 
      ParallelTransition parallelTransition = new ParallelTransition(
         rectangle, pathTransition, translateTransition, scaleTransition ); 
      //Playing the animation 
      parallelTransition.play(); 
      //Creating a Group object  
      Group root = new Group(rectangle); 
      //Creating a scene object 
      Scene scene = new Scene(root, 600, 300); 
      //Setting title to the Stage 
      stage.setTitle("Parallel 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 parallelTransitionExample.java 
java parallelTransitionExample

执行时，上面的程序生成一个JavaFX窗口，如下所示。

暂停转换

以下是在JavaFX中演示Pause Transition的程序。将此代码保存在名为PauseTransitionExample.java的文件中。

import javafx.animation.PauseTransition; 
import javafx.animation.ScaleTransition;  
import javafx.animation.SequentialTransition; 
import javafx.animation.TranslateTransition; 
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 PauseTransitionExample 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(50.0f); 
      //Setting the color of the circle 
      circle.setFill(Color.BROWN); 
      //Setting the stroke width of the circle 
      circle.setStrokeWidth(20);       
      //Creating a Pause Transition
      PauseTransition pauseTransition = new PauseTransition(); 
      //Setting the duration for the transition 
      pauseTransition.setDuration(Duration.millis(1000)); 
      //Creating Translate Transition 
      TranslateTransition translateTransition = new TranslateTransition();  
      //Setting the duration for the transition 
      translateTransition.setDuration(Duration.millis(1000));       
      //Setting the node of the transition 
      translateTransition.setNode(circle); 
      //Setting the value of the transition along the x axis 
      translateTransition.setByX(300); 
      //Setting the cycle count for the stroke 
      translateTransition.setCycleCount(5);  
      //Setting auto reverse value to true 
      translateTransition.setAutoReverse(false);  
      //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(5); 
      //Setting auto reverse value to true 
      scaleTransition.setAutoReverse(false);       
      //Applying Sequential transition to the circle 
      SequentialTransition sequentialTransition = new SequentialTransition(
         circle, translateTransition, pauseTransition, scaleTransition );
      //Playing the animation 
      sequentialTransition.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("Pause 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 PauseTransitionExample.java 
java PauseTransitionExample

执行时，上面的程序生成一个JavaFX窗口，如下所示。