SWING 自定义类似android的吐司提示组件

吐司提示框组件

效果截图:

 0 提示 黑色背景色

 1 成功提示 浅蓝色背景色

 

 

 

2  错误提示 粉红色背景色

 

 

package swing.component.label;

import java.awt.Color;
import java.awt.Composite;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.RenderingHints;
import java.awt.Window;
import java.awt.font.FontRenderContext;
import java.awt.geom.Rectangle2D;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JWindow;

/**
 * 吐司提示框组件
 * 
 * 
 * @author ccw
 * @since:2014-2-28
 */
public class Toast extends JWindow {

	private static final long serialVersionUID = 1L;
	private String message = "";
	private final Insets insets = new Insets(12, 24, 12, 24);
	private int period = 1500;
	private Font font;
	public static final int msg = 0;// 提示 黑色背景色
	public static final int success = 1;// 成功提示 浅蓝色背景色
	public static final int error = 2;// 错误提示 粉红色背景色
	private Color background;
	private Color foreground;

	/**
	 * 
	 * @param parent
	 *            父窗体 (Frame Dialog Window)
	 * @param message
	 *            消息
	 * @param period
	 *            显示时间
	 */
	public Toast(Window parent, String message, int period) {
		this(parent, message, period, 0);

	}

	/**
	 * 
	 * @param parent
	 * @param message
	 * @param period
	 * @param type
	 *            提示类型 msg:黑色背景色 success :浅蓝色背景色  error: 粉红色背景色
	 */
	public Toast(Window parent, String message, int period, int type) {
		super(parent);
		this.message = message;
		this.period = period;
		font = new Font("宋体", Font.PLAIN, 14);
		setSize(getStringSize(font, true, message));
		// 相对JFrame的位置
		setLocationRelativeTo(parent);
		installTheme(type);

	}

	@Override
	public void paint(Graphics g) {
		Graphics2D g2 = (Graphics2D) g;
		// old
		Composite oldComposite = g2.getComposite();

		g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
				RenderingHints.VALUE_ANTIALIAS_ON);
		g2.setFont(font);
		FontMetrics fm = g2.getFontMetrics();
		g2.setColor(background);
		g2.fillRoundRect(0, 0, getWidth(), getHeight(), 12, 12);
		g2.setColor(foreground);
		g2.drawString(message, insets.left, fm.getAscent() + insets.top);
		// restore
		g2.setComposite(oldComposite);
	}

	/**
	 * 启动提示
	 */

	public void start() {
		this.setVisible(true);
		Timer timer = new Timer();
		timer.schedule(new TimerTask() {
			@Override
			public void run() {
				setVisible(false);
			}
		}, period);
	}

	/**
	 * 修改消息
	 * @param message
	 */
	public void setMessage(String message) {
		this.message = message;
		Dimension size = getStringSize(font, true, message);
		setSize(size);
		revalidate();
		repaint(0, 0, size.width, size.height);
		if (!isVisible()) {
			start();
		}
	}

	/*
	 * 设置样式
	 */
	private void installTheme(int type) {
		switch (type) {
		case msg:
			background = new Color(0x515151);
			foreground = Color.WHITE;
			break;
		case success:
			background = new Color(223, 240, 216);
			foreground = new Color(49, 112, 143);
			break;
		case error:
			background = new Color(242, 222, 222);
			foreground = new Color(221, 17, 68);
			break;

		default:
			background = new Color(0x515151);
			foreground = Color.WHITE;
			break;
		}
	}

	/**
	 * 得到字符串的宽-高
	 * 
	 * @param font
	 *            字体
	 * @param isAntiAliased
	 *            反锯齿
	 * @param text
	 *            文本
	 * @return
	 */
	private Dimension getStringSize(Font font, boolean isAntiAliased,
			String text) {
		FontRenderContext renderContext = new FontRenderContext(null,
				isAntiAliased, false);
		Rectangle2D bounds = font.getStringBounds(text, renderContext);
		int width = (int) bounds.getWidth() + 2 * insets.left;
		int height = (int) bounds.getHeight() + insets.top * 2;
		return new Dimension(width, height);
	}

}


测试 

package swing.component.label;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
 * JLabel 支持GIF图像 very excited
 * 吐司组件的使用
 * @author CCW
 * @date 2014-2-23
 * @since v1.0
 */
public class LabelTest {
	public static void main(String[] args) {
		JFrame frame = new JFrame();

		JPanel panel = new JPanel();
		panel.setAlignmentX(0.5f);
		panel.setAlignmentY(1.0f);
		BoxLayout boxLayout = new BoxLayout(panel, BoxLayout.X_AXIS);

		panel.setLayout(boxLayout);

		/**
		 * 1-吐司组件的使用
		 */
		final Toast toast = new Toast(frame, "北京市没有权限访问", 5000, Toast.error);
		
		JLabel label = new JLabel("text");
		panel.add(label);
		JButton start = new JButton("start");
		start.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				/**
				 * 2-显示吐司组件
				 */
				toast.start();
				

			}
		});
		panel.add(start);
		
		JButton update = new JButton("update message");
		update.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				/**
				 * 3-修改组件消息提示内容
				 */
				toast.setMessage(Math.random() + "");

			}
		});
		
		panel.add(update);
		frame.add(panel);
		frame.setSize(960, 660);
		frame.setLocationRelativeTo(null);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		frame.setVisible(true);
	}

}