JavaFX阶段在特定屏幕上打开 - 奇怪的行为 [英] JavaFX Stage open on specific Screen - weird behavior

问题描述

我使用以下代码打开一个舞台：

I open a stage using following code:

ObservableList<Screen> screens = Screen.getScreens();
   if(screens.size()>1){
         Rectangle2D rec = screens.get(preferredScreen).getVisualBounds();
         stage.setX(rec.getMinX());
         stage.setY(rec.getMinY());   
   }

当从主屏幕的窗口调用此功能时，这非常有效。

When this is called from a window at primary screen, this works perfectly.

当从非主屏幕调用此屏幕时，舞台将在首选屏幕上打开，然后跳转到鼠标所在的屏幕。

When this is called from a non-primary screen, the stage opens on preferred screen and then jumps to the screen where the mouse is in.

我觉得这是一个Windows功能。将此窗口设置到正确屏幕的最佳方法是什么？

Seems to me being a Windows "feature". What would be the best way get this window to the right screen?

推荐答案

根据屏幕，您应该相对于主屏幕设置新阶段，因为你只扩展你的桌面。所以你应该写这样的东西：

According to the JavaDoc of Screen, you should set the new stage relative to the primary screen, because you only extend your desktop. So you should write something like this:

    int preferredScreen = 1;
    double offsetX = 0;
    double offsetY = 0;

    Rectangle2D primaryScreenBounds = Screen.getPrimary().getVisualBounds();

    ObservableList<Screen> screens = Screen.getScreens();
   if(screens.size()>1){
         Rectangle2D rec = screens.get(preferredScreen).getVisualBounds();
         // upper left corner of the extended screen
         offsetX = rec.getMinX();
         offsetY = rec.getMinY();
         // set relative to this screen
         stage.setX(primaryScreenBounds.getMinX() + offsetX);
         stage.setY(primaryScreenBounds.getMinY() + offsetY);   
   }

我自己无法测试，我只有一台显示器。

Can't test it by myself, I only have one monitor.

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