我已经阅读了一堆已经提出的问题,但还没有看到一个可靠的答案。我正在尝试在 jTree 上设置选择,以尝试为我的 Java 项目创建一种 API。我可以很容易地在父节点上设置选择:myTree.setSelection(1);
有任何叶子离开子节点的问题。我有一个 walk 函数,我正在其中寻找一个特定的字符串。当我到达带有我正在寻找的字符串的节点时,我设法返回了一个 Object[]。但我无法将其转换为 Treepath 以使用 myTree.setSelectionPath(path)。有人可以帮忙吗?我很感激。
//My call
TreeModel model = jTree1.getModel();
Object getNode = myWalk(model);
jTree1.setSelectionPath((TreePath) getNode);
//this throw an error stating that Object[] can't be converted to a path.
public Object[] myWalk(TreeModel model, String s, String t){
DefaultMutableTreeNode root = (DefaultMutableTreeNode) model.getRoot();
DefaultMutableTreeNode child;
TreeNode[] returnPath = null;
int childrenCount = root.getChildCount();
for(int i = 0; i < childrenCount; i++){
child = (DefaultMutableTreeNode) root.getChildAt(i);
if(child.toString().equals(s)){
System.out.println(child.toString());
int secondChildCount = child.getChildCount();
DefaultMutableTreeNode secondLevelChild;
for(int y = 0; y < secondChildCount; y++){
secondLevelChild = (DefaultMutableTreeNode) child.getChildAt(y);
if(secondLevelChild.toString().equals(t)){
System.out.println(secondLevelChild.toString());
returnPath = secondLevelChild.getPath();
//returnPath = new TreePath(new Object[] {root.toString(), child.toString(), secondLevelChild.toString()});
}
}
}
}
return returnPath;
}