如何从JavaFX场景图节点获取边框宽度？

Question

I have a VBox and I set its border width to 3 dynamically (without CSS or FXML).

Then I tried to get its border width using

myVBox.getBorder().getStrokes().get(0).getLeftStrokeWidth();

But it doesn't work! Can anybody help me please?

Answer 1

If you have set the border programatically like:

VBox vbox = new VBox();
BorderStroke borderStroke = new BorderStroke(Color.RED, BorderStrokeStyle.DASHED, 
    null, new BorderWidths(5));
// Sets all 4 borders
vbox.setBorder(new Border(borderStroke));

Then you can get the widths like:

double left = vbox.getBorder().getStrokes().get(0).getWidths().getLeft();
System.out.println("Left border width " + left);

Output

Left border width 5.0