java - 如何在 javafx 中使用单选按钮组？

Question

我需要制作一组 2 个单选按钮，然后检索所选按钮的值。

Answer 1

只需使用ToggleGroup

RadioButton radioButton1 = ...
RadioButton radioButton2 = ...

// TODO: add RadioButtons to scene

ToggleGroup toggleGroup = new ToggleGroup();

radioButton1.setToggleGroup(toggleGroup);
radioButton2.setToggleGroup(toggleGroup);

// listen to changes in selected toggle
toggleGroup.selectedToggleProperty().addListener((observable, oldVal, newVal) -> System.out.println(newVal + " was selected"));

您还可以使用 ToggleGroup 检索选定的单选按钮

toggleGroup.getSelectedToggle()

如果您想从提交按钮或类似的处理程序中执行此操作...