如何在 JTabbedPane 中检查选项卡是否处于活动状态? [英] How to check whether the tab is active or not in JTabbedPane?

问题描述

如何在选项卡(嵌套类)本身的类中而不是在封闭类中检查 JTabbedPane 实例中的选项卡是否处于活动状态?

How can I check whether a tab in a JTabbedPane instance is active or not, in the class of the tab (nested class) itself and not in the enclosing class?

我知道有一个方法 booloean isEnabledAt(int index); 但是这个方法只能在封闭类中调用.而我想检查当前是否在选项卡类本身(嵌套类)中选择了选项卡.

I know that there is a method booloean isEnabledAt(int index); but this method can only be called in the enclosing class. Whereas I want to check whether the tab is currently selected within the tab class itself (nested class).

有人可以建议怎么做吗?

Can anybody please suggest how?

推荐答案

你的组件有一个 parent，最终是 JTabbedPane.JTabbedPane 有类似 getSelectedIndex() 或 getSelectedComponent().

Your component has a parent, eventually the JTabbedPane. JTabbedPane has methods like getSelectedIndex() or getSelectedComponent().

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