将 JRadioButton 添加到 RadioButton 组
美好的一天
想知道如何通过将组件拖放到框架上来将单选按钮添加到 ButtonGroup 中。
JRadioButton male = new JRadioButton("Male");
JRadioButton female = new JRadioButton("Female");
ButtonGroup bg = new ButtonGroup();
bg.add(male);
bg.add(female);
pane.add(male);
pane.add(female);
我怎样才能通过简单的拖放来做到这一点。如果我将 ButtonGroup 放到框架上，它将被分组在“其他组件”下，从那里我不确定如何将单选按钮添加到按钮组。
谢谢 问候阿里安
Good day
Would like to know how to add radiobuttons to a ButtonGroup by dragging and dropping components on to the frame.
JRadioButton male = new JRadioButton("Male");
JRadioButton female = new JRadioButton("Female");
ButtonGroup bg = new ButtonGroup();
bg.add(male);
bg.add(female);
pane.add(male);
pane.add(female);
How can I do this by simple dragging and dropping. If I drop the ButtonGroup onto the frame it gets grouped under 'other components' and from there I am not exactly sure how to add radio buttons to the button group.
thanks
regards Arian
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您已经查看了 HierarchyListener，
hierarchyChanged事件，您已将新的JRadioButton添加到ButtonGroup中，仔细了解最后知道的具体 isSelectedJRadioButtonyou have look at HierarchyListener, on
hierarchyChangedevent you have add a newJRadioButtonto theButtonGroup, carefully with last know isSelected for concreteJRadioButton