我想使用空格键来展开/折叠节点。它对于输入非常适用,并且它对空间不起作用(只需选择/取消选择节点)。这里是我的代码:树。空格键热键
final Action actionEnter = new ShortcutAction("Select node",
ShortcutAction.KeyCode.ENTER, null);
final Action actionSpace = new ShortcutAction("Select node1",
ShortcutAction.KeyCode.SPACEBAR, null);
treePanel.addActionHandler(new Action.Handler() {
@Override
public void handleAction(Action action, Object sender, Object target) {
if (action==actionEnter || action==actionSpace){
Object curId = tree.getValue();
expandCollapse(curId);
}
}
@Override
public Action[] getActions(Object target, Object sender) {
return new Action[] { actionEnter, actionSpace };
}
});
什么是空间热键问题?
如果您在调试器中运行此操作,按下空格键时会不会触发handleAction代码? – 2012-02-21 18:13:41
不......它没有。只有当输入按下时 – 2012-02-22 18:38:04