Get all swing components in a container

问题

I think we can use jScrollPane.getComponents() to get awt components of a jscrollpane. My question is: is there a way to get swing components of a container some how?

回答1:

All Swing components extend JComponent.

Component[] comps = jScrollPane.getComponents();
ArrayList<JComponent> swingComps = new ArrayList<JComponent>();

for(Component comp : comps) {
     if(comp instanceof JComponent) {
          swingComps.add((JComponent) comp);
     }
}

回答2:

You can call getComponents then test to see if it is an instance of JComponent. A method would be like:

ArrayList jcomponents = new ArrayList();
for (Component c : container.getComponents())
{
      if (c instanceof JComponent)
      {
            jcomponents.add(c);
      }
 }

来源：https://stackoverflow.com/questions/6485634/get-all-swing-components-in-a-container