Question

我正在尝试制作一个弹出式叠加窗口。

public class TestPopup extends PopupControl {
    private final Window owner;

    private final Rectangle rect = new Rectangle(100, 100, Color.RED);

    private boolean isPopupTemporarilyHidden = false;
    private final ChangeListener<Boolean> parentFocusChangeListener;

    private final NumberBinding aX;
    private final NumberBinding aY;

    protected TestPopup(Window owner)
    {
        this.owner = owner;

        parentFocusChangeListener = (focusedProperty, wasFocused, isFocused) -> {
            if (owner.isShowing())
                return;
            // Hide the popup when the owner window loses focus
            if (!isFocused) {
                hide();
                isPopupTemporarilyHidden = true;
            }
            // Show again when the owner window re-gains focus
            else if (isPopupTemporarilyHidden) {
                show();
                isPopupTemporarilyHidden = false;
            }
        };

        final WeakChangeListener<Boolean> weakListener = new WeakChangeListener<>(parentFocusChangeListener);
        owner.focusedProperty().addListener(weakListener);

        setSkin(new Skin<Skinnable>() {
            @Override
            public Skinnable getSkinnable() {
                return null;
            }

            @Override
            public Node getNode() {
                return rect;
            }

            @Override
            public void dispose() {}
        });

        // Trying to adjust popup location whenever the owner window moves
        aX = owner.xProperty().add(owner.getScene().xProperty()).add(10);
        aY = owner.yProperty().add(owner.getScene().yProperty()).add(10);

        // anchorX and anchorY are read-only - cannot bind
        aX.addListener(ax -> setAnchorX(aX.getValue().doubleValue()));
        aY.addListener(ay -> setAnchorY(aY.getValue().doubleValue()));
    }

    public void showPopup() {
        show(owner, owner.getX() + owner.getScene().getX() + 10, owner.getY() + owner.getScene().getY() + 10);
    }
}

如果我最小化窗口，然后通过任务栏将其最小化，则弹出窗口（带有红色矩形）将在所有者窗口缓慢创建动画之前显示在屏幕上。我使用的是Windows 10，因此本机窗口确实具有当它们最小化时的动画。

我也尝试读取Stage.iconifiedProperty()的值，但是似乎该值在动画结束之前更改为false。动画结束后，有什么方法可以让弹出窗口显示吗？

另外一个问题：当我在屏幕上拖动所有者窗口时，弹出窗口中会有明显的滞后。无论如何，我可以做些什么来减少延迟？

JavaFX：找出Window / Stage完成“最小化”的时间

0 个答案: