JavaFX-为整个应用程序设置默认的CSS样式表 [英] JavaFX - Set default CSS stylesheet for the whole Application

问题描述

我对JavaFX还是很陌生，我正在尝试通过CSS更改应用程序方面.第一次工作正常，当我切换到另一个场景时，CSS的类未应用. 因为我的项目有10个场景，所以我更喜欢使用一个CSS文件通过以下语句将样式应用于所有场景: StyleManager.getInstance().addUserAgentStylesheet(this.getClass().getResource("/style.css").toExternalForm()); 进入start()方法. 如何在全局范围内将我的CSS文件应用于所有场景?

解决方案

您可以执行以下两行操作:

Application.setUserAgentStylesheet(Application.STYLESHEET_MODENA);
StyleManager.getInstance().addUserAgentStylesheet(getClass().getResource("/style.css").toString());

第一行将使用 into start() method. How can I apply to all scenes my CSS file globally?

解决方案

You can do it with the following two lines:

Application.setUserAgentStylesheet(Application.STYLESHEET_MODENA);
StyleManager.getInstance().addUserAgentStylesheet(getClass().getResource("/style.css").toString());

The first line will set the default stylesheet to modena (here you could even choose to set JavaFX2 caspian as default stylesheet) using Application#setUserAgentStylesheet, while the second line will add your stylesheet to the user agent stylesheet list.

It's not the nicest solution as StlyeManager is a private API (and will remain in JDK9 as it is now).

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Other solution would be to subclass Scene, in which subclass you can add your stylesheet by default, then rather than instantiating Scene, you could create instances of your subclass.

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