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我需要将我的窗格的背景颜色设置为一秒钟,然后将其切换为透明。我有这个设置来改变背景颜色,使用持续时间为1000ms的TimeLine暂停它,然后切换到透明。JavaFX使用TimeLine暂停程序
时间轴没有暂停,程序飞过它并且背景太快。有人知道怎么修这个东西吗?
由于该项目的范围,我无法使用thread.sleep或类似的东西。
package assign3;
import java.util.ArrayList;
import java.util.concurrent.TimeUnit;
import javafx.animation.FillTransition;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.Background;
import javafx.scene.layout.BackgroundFill;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.CornerRadii;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.util.Duration;
public class Question2 extends Application
{
public static final int RED = 1;
public static final int GREEN = 2;
public static final int BLUE = 3;
public static final int ORANGE = 4;
@Override
public void start(Stage obPrimeStage) throws Exception
{
boolean runGame = true;
int level = 1;
BorderPane obBorder = new BorderPane();
HBox obPane = new HBox();
HBox obStart = new HBox();
Button btRed = new Button("Red");
Button btGreen = new Button("Green");
Button btBlue = new Button("Blue");
Button btOrange = new Button("Orange");
Button btStart = new Button("Start");
Timeline pause = new Timeline();
pause.setCycleCount(1);
pause.getKeyFrames().add(new KeyFrame(Duration.millis(1000)));
obStart.getChildren().add(btStart);
obPane.getChildren().addAll(btRed, btGreen, btBlue, btOrange);
obBorder.setCenter(obPane);
obBorder.setBottom(obStart);
obPane.setAlignment(Pos.CENTER);
obStart.setAlignment(Pos.CENTER);
Scene obScene = new Scene(obBorder, 400, 400);
obPrimeStage.setTitle("Question 2");
obPrimeStage.setScene(obScene);
obPrimeStage.show();
ArrayList<Integer> colours = new ArrayList<>();
ArrayList<Integer> guesses = new ArrayList<>();
btStart.setOnAction((ActionEvent start) -> {
for(int i = 0; i <= level; i++)
{
int randomColour = (int)((Math.random() * 4) + 1);
randomColour = 1;
if(randomColour == RED)
{
obBorder.setBackground(new Background(new BackgroundFill(Color.RED, CornerRadii.EMPTY, Insets.EMPTY)));
pause.play();
obBorder.setBackground(new Background(new BackgroundFill(Color.TRANSPARENT, CornerRadii.EMPTY, Insets.EMPTY)));
colours.add(RED);
}
非常感谢!这完美地回答了它。我不完全确定KeyFrame应该如何工作。 –