Java 使用gxt3的BorderLayoutContainer时排列布局不正确

我面临着不同的问题，每当我试图调整窗口内容的大小时，它都不会被调整大小。我还尝试了调整大小处理程序的方法

正如我们可以看到的，SnapshotChooserView和RunLogGrid有两个组件，我已经使它可折叠。 因此，当我使SnapshotChooserView折叠时，所有空间都应该被RunLogGrid占用，当我折叠RunLogGrid时，所有其他空间都应该被SnapshotChooserView占用

谁能帮我弄清楚这件事

public class RunView implements IsWidget {

// Client factory
private ClientFactory iClientFactory;

// Main Container
private BorderLayoutContainer borderLayoutContainer;

// Components
private SnapshotChooserView snapshotChooserView;

// Components
private RunLogGrid runLogGrid;

ContentPanel north;

ContentPanel south;

ResizeHandler handler1;

ResizeHandler handler2;

// ---- CONSTRUCTORS ----

public RunView() {
}

public RunView(ClientFactory aClientFactory) {

    iClientFactory = aClientFactory;


    borderLayoutContainer = new BorderLayoutContainer();
    borderLayoutContainer.setBorders(true);

    snapshotChooserView = iClientFactory.getSnapshotChooserView();
    runLogGrid = new RunLogGrid(iClientFactory);

    final double SnapshotChooserHeight = 500;
    final int RunLogGridHeight = 350;

    handler1 = new ResizeHandler(){
        @Override
        public void onResize(ResizeEvent event) {
            north.setWidth(event.getWidth());
            north.setHeight(event.getHeight());
        }
    };

    handler2 = new ResizeHandler(){
        @Override
        public void onResize(ResizeEvent event) {
            south.setWidth(event.getWidth());
            south.setHeight(event.getHeight());
        }
    };

    north = new ContentPanel();
    north.setHeadingText("Run Details");
    north.add(snapshotChooserView.asWidget());
    north.setCollapsible(true);
    north.setResize(true);
    north.addResizeHandler(handler1);
   // north.forceLayout();

    south = new ContentPanel();
    south.setHeadingText("Run Log Info");
    south.add(runLogGrid.asWidget());
    south.setCollapsible(true);
    south.setResize(true);
    south.addResizeHandler(handler2);
   // south.forceLayout();

    BorderLayoutData northData = new BorderLayoutData(SnapshotChooserHeight);
    northData.setMargins(new Margins(2, 2, 2, 2));
    //northData.setCollapsible(true);
    //northData.setSplit(true);
    //northData.setCollapsed(true);
    //northData.setCollapseMini(true);


    BorderLayoutData southData = new BorderLayoutData(RunLogGridHeight);
    southData.setMargins(new Margins(2, 2, 2, 2));
    //southData.setCollapsible(true);
    //southData.setMinSize(RunLogGridHeight);
    //southData.setMaxSize(850);
    //southData.setSplit(true);
    //southData.setCollapseMini(true);

//borderLayoutContainer.addResizeHandler（handler1）； //borderLayoutContainer.addResizeHandler（handler2）

---

}

只有从a开始，然后使用GXT容器作为BorderLayoutContainers的父级/祖先级，GXT中的大小调整才会起作用。是这样做的吗？要么是视口，要么直接指定大小。此外，GXT布局容器或GWT布局面板都可以用作父级，只要它们被配置为为为其子级提供一个大小。GWT的RootLayoutPanel不够，因为它并不表示初始大小已经准备好。

    borderLayoutContainer.setNorthWidget(north, northData);
    borderLayoutContainer.setSouthWidget(south, southData);

}

/*
 * @see RunLogGrid::TriggerGridReload
 */
public void triggerRunGridRefresh() {      
    runLogGrid.triggerGridReload();
}

/*
 * (non-Javadoc)
 * 
 * @see com.google.gwt.user.client.ui.IsWidget#asWidget()
 */
@Override
public Widget asWidget() {
    return borderLayoutContainer;
}