将右键菜单添加到SWT树中的treeitem

如何向SWT树中的树项添加右键单击弹出菜单。 每个treeitem都应该在其上启用右键单击

Answer 1

只需使用tree.setMenu(Menu) 。

你去：

 public static void main(String[] args) { Display display = Display.getDefault(); final Shell shell = new Shell(display); shell.setText("StackOverflow"); shell.setLayout(new FillLayout()); final Tree tree = new Tree(shell, SWT.NONE); for(int i = 0; i < 10; i++) { TreeItem item = new TreeItem(tree, SWT.NONE); item.setText("Parent " + i); for(int j = 0; j < 3; j++) { TreeItem child = new TreeItem(item, SWT.NONE); child.setText("Child " + i + " " + j); } } final Menu menu = new Menu(tree); tree.setMenu(menu); menu.addMenuListener(new MenuAdapter() { public void menuShown(MenuEvent e) { MenuItem[] items = menu.getItems(); for (int i = 0; i < items.length; i++) { items[i].dispose(); } MenuItem newItem = new MenuItem(menu, SWT.NONE); newItem.setText("Menu for " + tree.getSelection()[0].getText()); } }); shell.pack(); shell.open(); while (!shell.isDisposed()) { if (!display.readAndDispatch()) display.sleep(); } display.dispose(); }