JAVAFX还有什么其他方法可以使“标签”闪烁而不是使用时间轴？

Question

How do I create the blinking effect on my custom label other than using the timer?

Here's a workable example I am using...

The custom label class

public class CustomLabel extends Label{

   public CustomLabel(String text1){
      super(text1);
      setAlignment(Pos.CENTER);

      //for blinking effect
        TIMER = new Timeline(
            new KeyFrame(Duration.seconds(1),ae->ChangeColor1()),
            new KeyFrame(Duration.seconds(2),ae->ChangeColor2())
        );
        TIMER.setCycleCount(Animation.INDEFINITE);
        TIMER.play();
    }

    public void ChangeColor1(){
        setTextFill(Color.Pink);    
    }

    public void ChangeColor2(){
        setTextFill(Color.Blue);    
    }

}

Main class

StackPane sp = new StackPane(new CustomLabel("Testing"));
Scene sc = new Scene(sp)
primaryStage.setScene(sc)
sc.show();

Is there any way to make this method "lighter"?

Somehow this method causes an error after keeping the app running for 1 full day

java.lang.NullPointerException
Exception in thread "JavaFX Application Thread" java.lang.OutOfMemoryError: Java heap space

Any advise on how to get around this? This app is required to be running for more than 1 full day.

Answer 1

to reply to your above answer, (as the comments do not allow for code blocks) this is the way you will need to do it for it to be able to "blink":

KeyFrame kfP = new KeyFrame(Duration.seconds(1), new KeyValue(ae.textFillProperty(), Color.PINK));
Timeline TIMER = new Timeline();
TIMER.getKeyFrames().add(kfP);
TIMER.setCycleCount(Animation.INDEFINITE);
TIMER.setAutoReverse(true);
TIMER.play();   

The reason to do it this way is you only create one keyframe and it only uses the one keyframe, this stops the timeline from creating multiple new keyframes as it would in your initial code and as the timeline continues to run it does not get Garbage collected so it just builds until your out of memory.