我将TreeView放置为ScrollPane的内容。 ScrollPane放置在SplitPane内部。
当我拖动SplitPane的分隔线使其大于TreeView的大小时,我看到TreeView的边框。
我希望在拖动SplitPane的分隔线后,调整TreeView的大小,使其与可用空间一样大。我的代码:

SplitPane splitPane = new SplitPane();
splitPane.getItems().addAll(createTreeOfConnections());

private ScrollPane createTreeOfConnections() {
ScrollPane scrollPane = new ScrollPane();
scrollPane.setMinSize(100, 300);
scrollPane.setPrefSize(200, 500);
    scrollPane.setMaxSize(Double.MAX_VALUE, Double.MAX_VALUE);
scrollPane.setVbarPolicy(ScrollBarPolicy.AS_NEEDED);
scrollPane.setHbarPolicy(ScrollBarPolicy.AS_NEEDED);
scrollPane.setContent(new ConnectionsTree(this));
return scrollPane;


ConnectionsTree类扩展TreeView,其构造函数为:

public ConnectionsTree(MainStage mainStage) {
        // here we set the root of ConnectionsTree which is not visible
        super();
        this.mainStage = mainStage;

        root = new ConnectionTreeItem();
        root.setExpanded(true);
        super.setRoot(root);
        super.setShowRoot(false);
        super.setEditable(false);
        super.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
        super.setMaxSize(Double.MAX_VALUE, Double.MAX_VALUE);

        retrieveExistentConnectionsNodes();
        ContextMenu contextMenu = new ContextMenu(createNewConnectionMenuItem(
                "New Connection", KeyCombination.valueOf("Ctrl+N")));
        super.setContextMenu(contextMenu);                }


如何告诉TreeView(my TreeConnections)应该占用SplitPane左部分的所有可用空间?

谢谢!

最佳答案

尝试这个

scrollPane.setFitToHeight(true);
scrollPane.setFitToWidth(true);

07-24 09:47
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