Javafx TreeView项目操作事件 [英] Javafx Treeview item action event
问题描述
我正在尝试使用treeView创建一个菜单。这是我第一次使用treeView并在几个网站上阅读它。
I'm trying to create a menu using a treeView. This is the first time I'm using treeView and have been reading up on it on several websites.
当涉及到行动事件时,我遇到了一些问题。我想做的是基本上是为了触发和事件,当用户点击树视图中的一个节点到目前为止,我有以下:
I'm having some problems when it comes to action event. What I want to do is basically to fire and event when ever the user clicks a node in the treeview so far I have the following:
TreeItem<String> rootItem = new TreeItem<String>("Navigation");
TreeItem<String> statistics = new TreeItem<String>("Statistics");
TreeItem<String> clan = new TreeItem<String>("Clan page");
clan.addEventHandler(MouseEvent, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
// TODO Auto-generated method stub
}
});
rootItem.getChildren().add(statistics);
rootItem.getChildren().add(clan);
TreeView<String> tree = new TreeView<String>(rootItem);
可惜这似乎不起作用。
有什么办法可以将 clicklistener
甚至一个 actionlistener
添加到我的 treeView
而不用更改 treeItems
键入 Button
?
Is there any way I can add a clicklistener
or even an actionlistener
to the individual items in my treeView
without changing the treeItems
to type Button
?
推荐答案
根据 JavaFX 2.2文档:
..一个TreeItem是不一个 Node ,因此没有视觉事件将
触发TreeItem,要获取这些事件,有必要添加相关观察者
TreeCell实例(通过一个自定义单元格工厂)。
" ..a TreeItem is not a Node, and therefore no visual events will be fired on the TreeItem, To get these events, it is necessary to add relevant observers to the TreeCell instances (via a custom cell factory)."
我认为这个 TreeView 的>示例将会以某种方式有用。
I think this example on using TreeView
will be somehow useful.
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