如何在JavaFX中监听Stage的resize事件？ [英] How to listen resize event of Stage in JavaFX?

问题描述

我想在表单的resize事件上执行一些功能（或 Scene 或 Stage 无论是什么）。

I want to perform some functionality on resize event of form (or Scene or Stage whatever it is).

但是如何在JavaFX中检测表单的resize事件？

But how can I detect resize event of form in JavaFX?

推荐答案

你可以听一下 widthProperty 和 heightProperty Stage ：

stage.widthProperty().addListener((obs, oldVal, newVal) -> {
     // Do whatever you want
});

stage.heightProperty().addListener((obs, oldVal, newVal) -> {
     // Do whatever you want
});

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注意：至听取宽度和高度的变化，可以非常简单地使用同一个监听器：

---

Note: To listen to both width and height changes, the same listener can be used really simply:

ChangeListener<Number> stageSizeListener = (observable, oldValue, newValue) ->
    System.out.println("Height: " + stage.getHeight() + " Width: " + stage.getWidth());

stage.widthProperty().addListener(stageSizeListener);
stage.heightProperty().addListener(stageSizeListener); 

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