我正在制作一个JavaFX程序,该程序使用多个TranslateTransition
在Node
上移动多个Pane
。我希望程序在转换完成之前停止执行。
import javafx.animation.TranslateTransition;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
import javafx.util.Duration;
public class Main extends Application {
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Stack Overflow MRE");
Pane root = new Pane();
Rectangle rect1 = new Rectangle(25, 100, Color.AQUA);
rect1.setX(10);
rect1.setY(10);
Rectangle rect2 = new Rectangle(25, 100, Color.BISQUE);
rect2.setX(465);
rect2.setY(10);
root.getChildren().addAll(rect1, rect2);
primaryStage.setScene(new Scene(root, 500, 500));
primaryStage.show();
for (int i = 0; i < 10; i++) {
if (i == 0) {
TranslateTransition translateRect1 = new TranslateTransition();
translateRect1.setNode(rect1);
translateRect1.setAutoReverse(true);
translateRect1.setCycleCount(1);
translateRect1.setToY(350);
translateRect1.setDuration(Duration.millis(5000));
translateRect1.play();
TranslateTransition translateRect2 = new TranslateTransition();
translateRect2.setNode(rect2);
translateRect2.setAutoReverse(true);
translateRect2.setCycleCount(1);
translateRect2.setToY(350);
translateRect2.setDuration(Duration.millis(5000));
translateRect2.play();
}
// The loop will continue iterating while the above transitions are still running
// I need the loop to pause until they complete
System.out.printf("The current iteration is %s\n", i);
}
}
public static void main(String[] args) {
launch(args);
}
}
在上面的代码示例中,两个过渡同时发生,这正是我想要的,但是循环在过渡完成之前继续进行。我希望循环暂停直到转换完成,然后再进行下一个迭代。在继续进行其余代码之前,我将如何让该程序首先完成过渡?
答案 0 :(得分:2)
只需使用onFinished
处理程序进行过渡,之后您便希望代码得以执行,例如
TranslateTransition translateRect2 = new TranslateTransition();
translateRect2.setNode(rect2);
translateRect2.setAutoReverse(true);
translateRect2.setCycleCount(1);
translateRect2.setToY(350);
translateRect2.setDuration(Duration.millis(5000));
translateRect2.setOnFinished(e -> {
System.out.println("Testing timing of output");
});
translateRect2.play();
// This line prints while the above transitions are still running
// System.out.println("Testing timing of output");
已编辑问题的解决方案基本上是相同的:以显而易见的方式对其进行重构,以便要在转换后运行的代码在onFinished
处理程序中:
TranslateTransition translateRect1 = new TranslateTransition();
translateRect1.setNode(rect1);
translateRect1.setAutoReverse(true);
translateRect1.setCycleCount(1);
translateRect1.setToY(350);
translateRect1.setDuration(Duration.millis(5000));
translateRect1.play();
TranslateTransition translateRect2 = new TranslateTransition();
translateRect2.setNode(rect2);
translateRect2.setAutoReverse(true);
translateRect2.setCycleCount(1);
translateRect2.setToY(350);
translateRect2.setDuration(Duration.millis(5000));
translateRect2.setOnFinished(e -> {
for (int i = 1; i < 10; i++) {
System.out.printf("The current iteration is %s\n", i);
}
});
translateRect2.play();
System.out.printf("The current iteration is 0\n");