RadioButton、CheckBox

RadioButton单选按钮

• 创建一个单选按钮组

  // 单选按钮组  
  ToggleGroup toggleGroup = new ToggleGroup();  
  // 单选按钮  
  RadioButton rb1 = new RadioButton("rb1");  
  RadioButton rb2 = new RadioButton("rb2");  
  RadioButton rb3 = new RadioButton("rb3");  
  RadioButton rb4 = new RadioButton("rb4");  
  rb1.setToggleGroup(toggleGroup);  
  rb2.setToggleGroup(toggleGroup);  
  rb3.setToggleGroup(toggleGroup);  
  rb4.setToggleGroup(toggleGroup);  
  // 或者用下面一行代替上面四行  
  // toggleGroup.getToggles().addAll(rb1, rb2, rb3, rb4);
  

• 设置默认选中toggleGroup.selectToggle(rb2);

• 监听单选按钮组的选中状态

  rb1.selectedProperty().addListener((observable, oldValue, newValue) -> System.out.println("rb1.selectedProperty(): " + newValue));
  

• 改变选中的单选按钮监听事件

  toggleGroup.selectedToggleProperty().addListener((observable, oldValue, newValue) -> System.out.println("toggleGroup.selectedToggleProperty(): " + newValue));
  

  

CheckBox多选按钮

• 创建若干多选按钮

  CheckBox cb1 = new CheckBox("cb1");  
  CheckBox cb2 = new CheckBox("cb2");  
  CheckBox cb3 = new CheckBox("cb3");  
  CheckBox cb4 = new CheckBox("cb4");
  

• 设置默认选中cb1.setSelected(true);

• 设置不确定状态cb2.setIndeterminate(true);

• 设置允许按钮有不确定状态cb3.setAllowIndeterminate(true);

• cb1选中状态改变监听事件

  cb1.selectedProperty().addListener((observable, oldValue, newValue) -> System.out.println("cb1.selectedProperty(): " + newValue));
  

• 鼠标点击布局文件获取每个多选按钮状态

  anchorPane.setOnMouseClicked(event -> {  
      hBox.getChildren().forEach(node -> {  
          // 打印被选中的按钮  
          if (node instanceof CheckBox) {  
              CheckBox checkBox = (CheckBox) node;  
              System.out.print(Color.RED + checkBox.getText() + " isSelected?:" + checkBox.isSelected());  
              System.out.println(Color.BLUE + " isIndeterminate?:" + checkBox.isIndeterminate());  
          }  
      });  
      System.out.println(Color.RESET + "==========================================");  
  });