共同行动监听器按钮3 [英] Common Action Listener for 3 Buttons

问题描述

我有我的code的设计麻烦。我有3个按钮不是一个按钮小组。我想 - 根据所选择的按钮 - 执行操作。现在的操作需要在类的对象的修饰。这意味着我不能使用一个内部类，因为这并不能访问外。如果我可以添加一个事件侦听器添加到按钮组，这将是很容易，但我看到它，我将需要为每个单选按钮的事件处理程序，这是正确的？如果不是我还能怎么办呢？谢谢

一个简单的例子

 公共类测试（）{
    单选1 =新RadoButton（）;
    单选2 =新RadoButton（）;
    单选3 =新RadoButton（）;
    对象myObject的=新的对象（）;   公共无效clickEvent（）{
       如果（1.isSelected（））{
           myObject.doOne（）;
       }否则如果（2.isSelected（））{
           myObject.doTwo（）;
       } .....
   }
}
 

解决方案

您可以在同一个监听器设置所有按钮。

伪code：

  radioButton1 =新的单选按钮（）;
radioButton2 =新的单选按钮（）;
radioButton3 =新的单选按钮（）;听众=新的ActionListener（）{
...
}
radioButton1.addActionListener（监听）;
radioButton2.addActionListener（监听）;
radioButton3.addActionListener（监听）;
 

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

A quick example

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();
       }.....
   }
}

解决方案

You can set the same listener to all your buttons.

Pseudo code:

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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