JavaFX auto-scroll down scrollpane

Question

Is there any way of auto scroll down a ScrollPane control when it content\'s height increases ? For example, I have a TitledPane on the bottom of the screen (inside a Scroll

Answer 1

I did it by using an AnimationTimer. I had to wait for 100000000 nanoseconds to be sure that the ScrollPane had reacted to the expanded Titlepane.

public void scrollNodeInTopScrollPane(Node n, ScrollPane s) {
    final Node node = n;
    final ScrollPane clientTopScrollPane = s;
    AnimationTimer timer = new AnimationTimer() {
        long lng = 0;
        @Override
        public void handle(long l) {
            if (lng == 0) {
                lng = l;                   
            }                
            if (l > lng + 100000000) {                   
                if (node.getLocalToSceneTransform().getTy() > 20) {                      
                    clientTopScrollPane.setVvalue(clientTopScrollPane.getVvalue() + 0.05);                        
                    if (clientTopScrollPane.getVvalue() == 1) {
                        this.stop();                          
                    }
                } else {
                    this.stop();
                }
            }                
        }
    };
    timer.start();
}