3个按钮的通用动作监听器

2022-01-21 00:00:00 radio-button java swing awt mixing

我的代码设计有问题.我有 3 个按钮不在按钮组中.我想 - 基于选定的按钮 - 执行一个动作.现在该操作需要修改类中的对象.这意味着我不能使用内部类，因为它无法访问外部.如果我可以将事件侦听器添加到按钮组，这会容易得多，但正如我所见，我将需要每个单选按钮的事件处理程序，这是正确的吗?如果不是，我还能怎么做?谢谢

I am having trouble with the design of my code. I have 3 buttons not in a button group. I want to - based on the selected button - perform an action. Now the action requires a modification of an object in the class. This means i cannot use an inner class because this does not have access to the outer. If i could add an event listener to a button group this would be much easier but as i see it i will need an event handler for each radio button, is this correct? If not how else can i do it? Thanks

一个简单的例子

public class Test(){
    RadioButton 1 = new RadoButton();
    RadioButton 2 = new RadoButton();
    RadioButton 3 = new RadoButton();
    Object myObject = new Object();

   public void clickEvent(){
       if(1.isSelected()){
           myObject.doOne();
       }else if(2.isSelected()){
           myObject.doTwo();
       }.....
   }
}

推荐答案

您可以为所有按钮设置相同的侦听器.

You can set the same listener to all your buttons.

伪代码:

radioButton1 = new RadioButton();
radioButton2 = new RadioButton();
radioButton3 = new RadioButton();

listener = new ActionListener() {
...
}


radioButton1.addActionListener(listener);
radioButton2.addActionListener(listener);
radioButton3.addActionListener(listener);

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