树中插入项

原来例子：Snippet102

其实就是：TreeItem (Tree parent, int style, int index)

TreeItem 的构造函数可以指定index。

public class Snippet102 {public static void main (String [] args) {Display display = new Display ();Shell shell = new Shell (display);Tree tree = new Tree (shell, SWT.BORDER | SWT.MULTI);tree.setSize (200, 200);for(int i=0; i<8; i++) {TreeItem item = new TreeItem (tree, SWT.NONE);item.setText ("Item " + i);}TreeItem item = new TreeItem (tree, SWT.NONE, 1);item.setText ("*** New Item " + 1 + " ***");shell.pack ();shell.open ();while (!shell.isDisposed ()) {if (!display.readAndDispatch ()) display.sleep ();}display.dispose ();}}

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