scala打开框架上的按钮点击

Question

我正在scala中创建一个应用程序。我想打开一个按钮点击框架。我是斯卡拉新手。下面是代码

import scala.swing._; 
import java.io._; 
import scala.swing.event._; 
import javax.swing.ImageIcon; 

object Try1 extends SimpleSwingApplication { 
def top = new MainFrame { 
title = "First Swing App"; 

val button = new Button { 
    text = "Proceed" 
} 
contents = new BoxPanel(Orientation.Vertical) { 


    contents += button 

    border = Swing.EmptyBorder(30, 30, 30, 30) 
} 
val obj = new Try2(); 
listenTo(button) 

reactions += { 
    case ButtonClicked(button) => 
    //here 2nd frame must be open 

} 
} 

对于要打开的窗口中的代码是这样的

import javax.swing.ImageIcon 
import scala.swing._ 

class Try2 extends SimpleSwingApplication { 
def top = new MainFrame { 
title = "Second Swing App"; 

val button = new Button { 
    text = "Proceed" 
} 
contents = new BoxPanel(Orientation.Vertical) { 


    contents += button 

    border = Swing.EmptyBorder(30, 30, 30, 30) 
    } 
    } 
} 

我怎样才能打开新的窗口。请帮助

Answer 1

你可以做如下所示的事情。这里故意创建一个Try2的新实例，而不是之前创建的obj，因为这是一个更清晰的方法。

reactions += { 
    case ButtonClicked(x: Button) if x.text == "Proceed" => 
    new Try2().top.visible = true 
}