JavaFX 中的 fx:id 和 id: 有什么区别? [英] What's the difference between fx:id and id: in JavaFX?

问题描述

也许真的是新手的问题....

Maybe a really newbie's question....

通过阅读本教程，我开始使用 Scene Builder 在 FMXL 应用程序中学习 JavaFX:

I'm starting learning JavaFX in a FMXL Application using the Scene Builder, by reading this tutorials:

http://docs.oracle.com/javase/8/javafx/get-started-tutorial/fxml_tutorial.htm

因此，一旦我应用了一些更改，就会出现这 2 个 ID 的问题......我可能错过或混淆了它们......

So once i applied some changes, an issue with this 2 IDs came up... I might have missed or confused something about them...

谁能告诉我在哪些情况下使用它们?

Can anyone tell me in which cases they are used one or another?

推荐答案

id 用于为组件设置 CSS ID，例如 并且在你的样式表中你有类似 #welcome-text { font-size: 16pt;} 所以这将应用于您的Text.

id you use to set a CSS ID to your Component, for example <Text id="welcome-text" .../> and in your stylesheet you have something like #welcome-text { font-size: 16pt; } so this will be applied to your Text.

fx:id 如果你想在你的控制器类中使用你的组件，你可以使用 @FXML Text myWelcomeText 注释它们.

fx:id you use if you want to work with your Components in your Controller class, where you annotate them with @FXML Text myWelcomeText.

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