我想使用空格鍵來展開/摺疊節點。它對於輸入非常適用,並且它對空間不起作用(只需選擇/取消選擇節點)。這裏是我的代碼:樹。空格鍵熱鍵
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 };
}
});
什麼是空間熱鍵問題?
如果您在調試器中運行此操作,按下空格鍵時會不會觸發handleAction代碼? – 2012-02-21 18:13:41
不......它沒有。只有當輸入按下時 – 2012-02-22 18:38:04