SWT 动态显示当前时间

package com.snbc.Swt;

import java.text.SimpleDateFormat;

public class ToolBar extends Composite {
	public Label lblTime;
	private Label lblRollMessage;
	private Display display;

	/**
	 * Create the composite.
	 * 
	 * @param parent
	 * @param style
	 */
	public ToolBar(Composite parent, int style, Display disp) {
		super(parent, style);
		this.display = disp;
		setLayout(new FillLayout(SWT.HORIZONTAL));
		Label label_1 = new Label(this, SWT.BORDER);
		label_1.setText("温馨提示：");
		lblRollMessage = new Label(this, SWT.BORDER);
		lblRollMessage.setText("欢迎使用本工具,有问题请联系我");
		Label label_2 = new Label(this, SWT.BORDER);
		label_2.setText("当前时间:");
		lblTime = new Label(this, SWT.BORDER);
		lblTime.setText("x");
		// 设置显示
		final Runnable timer = new Runnable() {
			public void run() {
				if (display.isDisposed()) {
					return;
				}
				Date dt = new Date();
				SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
				lblTime.setText(sdf.format(dt));
				display.timerExec(500, this);
			}
		};
		// 调用界面时间线程
		display.timerExec(500, timer);
	}

	@Override
	protected void checkSubclass() {
		// Disable the check that prevents subclassing of SWT components
	}
}