问题
Is there a library that makes it possible to write Swing based GUIs similar to the manner done by SwingBuilder in Groovy?
I am hoping to develop a Java GUI application without embedding Groovy or another complete programming language in Java, and I find the standard Java syntax rather tedious.
回答1:
I went down this path at one point, then I found MiGLayout - unless I'm using a split pane, I can generally lay out each of my views in a single panel, with a minimum of hassle. There is a tad of a learning curve, but once you are over the hump, you can knock out a really nice looking GUI in almost no time.
The whole paradigm of nesting panels inside other panels isn't clean for a lot of designs - you wind up fighting the layout manager.
回答2:
I'm not aware of such a library, though something similar would be possible (without named parameters, though, which reduces readability). Someone may have converted SwingBuilder to java.
[Looks like you can get java source for SwingBuilder at http://kickjava.com/src/groovy/swing/SwingBuilder.java.htm. I don't know how current that is]
About the closest you can come in plain java is to use the "double curly trick" (which isn't really a trick, just an anonymous inner class definition).
The SwingBuilder example on your referenced page:
new SwingBuilder().edt {
frame(title:'Frame', size:[300,300], show: true) {
borderLayout()
textlabel = label(text:"Click the button!", constraints: BL.NORTH)
button(text:'Click Me',
actionPerformed: {
count++;
textlabel.text = "Clicked ${count} time(s).";
println "clicked"},
constraints:BL.SOUTH)
}
}
could be written something like the following in Java
new JFrame() {{
setTitle("Frame");
setSize(300,300);
setLayout(new BorderLayout());
textlabel = new JLabel("Click the button!");
add(textlabel, BorderLayout.NORTH);
add(new JButton("Click Me") {{
addActionListener(new ActionListener() {
@Override public void actionPerformed(ActionEvent e) {
count++;
textlabel.setText("Clicked " + count + " time(s).");
System.out.println("clicked");
}});
}}, BorderLayout.SOUTH);
setVisible(true);
}};
NOTE: The problem here is that when you use
new SomeClass() {{ ... }}
it's actually creating a new class definition. I wouldn't recommend doing it very often because of this.
来源：https://stackoverflow.com/questions/4018817/swingbuilder-like-gui-syntax-for-java