JavaFX暂停过渡

本文概述

• 属性
• 构造函数

顾名思义, 此过渡用于在按顺序应用到节点的多个动画之间暂停。在此过渡的生命周期内, 该节点在屏幕上保持不动。

在JavaFX中, 类javafx.animation.PauseTransition表示此转换。我们只需要实例化此类即可创建适当的暂停过渡。

属性

构造函数

该类中有两个构造函数。

1. public PauseTransition()：使用默认参数创建PauseTransition的新实例。
2. public PauseTransition（Duration duration）：使用指定的持续时间创建PauseTransition的新实例。

例

在下面的示例中, 我们在多边形上应用了多个动画。每次转换后, 我们为节点提供了1秒的暂停。

package application;
import javafx.animation.FadeTransition;
import javafx.animation.PauseTransition;
import javafx.animation.RotateTransition;
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.Polygon;
import javafx.stage.Stage;
import javafx.util.Duration;
public class Pause_Transition extends Application{
@Override
public void start(Stage primaryStage) throws Exception {
		// TODO Auto-generated method stub
		//Creating polygon 
		Polygon poly = new Polygon(); 
		poly.getPoints().addAll(new Double[] {320.0, 270.0, 270.0, 220.0, 270.0, 270.0, 320.0, 120.0, 370.0, 270.0, 370.0, 220.0});
		
		 //Setting Color and Stroke properties for the polygon  
		 poly.setFill(Color.LIMEGREEN);
		 poly.setStroke(Color.BLACK);
	    
		 //Setting Rotate Transition 
		 RotateTransition rt = new RotateTransition(Duration.millis(500), poly);
	     rt.setByAngle(180);
	     rt.setCycleCount(2);
	     rt.setAutoReverse(true);
	    
	     //Setting Translate Transition 
	     TranslateTransition translate = new TranslateTransition(Duration.millis(500), poly);
	     translate.setToX(-150f);
	     translate.setCycleCount(2);
	     translate.setAutoReverse(true);
	     
	     //Setting Fade Transition 
	     FadeTransition fade = new FadeTransition(Duration.millis(500), poly);
	     fade.setFromValue(1.0f);
	     fade.setToValue(0.5f);
	     fade.setCycleCount(2);
	     fade.setAutoReverse(true);
	     
	     //Setting Sequential Transition and pause after each transition passed in the list 
	     SequentialTransition seqTransition = new SequentialTransition (fade, new PauseTransition(Duration.millis(2000)), rt, new PauseTransition(Duration.millis(2000)), translate);
	     
	     //Playing Sequential Transition 
	     seqTransition.play();
	     
	     //Setting Group and scene 
	     Group root = new Group();
		 root.getChildren().addAll(poly);
		 Scene scene = new Scene(root, 490, 300, Color.WHEAT);
		 primaryStage.setScene(scene);
		 primaryStage.setTitle("Pause Transition Example");
		 primaryStage.show();
}
public static void main(String[] args) {
	launch(args);
}
}

输出：