com.sun.awt.AWTUtilities.setWindowOpacity相关说明

在eclipse中(jdk1.6.*)版本中出现编译不通过而报错,报错是因为这个包里面的方法不属于jdk正式版本,也就是不能保证下个版本还存在,所以编译器会拒绝,你可以在eclipse中如下设置: 选择Window->Preferences->Java->Compiler->Errors/Warnings;然后选择Deprecated and restricted API,将 Deprecated API从ERROR改为Warning即可!

package Com.SwingTest;


import java.awt.BorderLayout;  
import java.awt.Font; 
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.awt.Window;
import javax.swing.JButton;
import javax.swing.JWindow;

import com.sun.awt.AWTUtilities;
 
public class SwingText_08 {
  
    private int _height = 30; // 气泡提示高
    private int _step = 60; // 设定循环的步长
    private int _stepTime = 60; // 每步时间
    private int _displayTime = 2000;  // 显示时间
    private Font _font;    // 字体
 
    /**
     * 构造函数，初始化默认气泡提示设置
     *
     */
    public SwingText_08() 
    {
        _font = new Font("微软雅黑", 0, 12);// 设定字体
        try {
            JWindow.class.getMethod("setAlwaysOnTop",
                    new Class[] { Boolean.class });
        } catch (Exception e) {
        }
    }
 
    /**
     * 重构JWindow用于显示单一气泡提示框
     *
     */
    class ToolTipSingle extends Window
    {
        private static final long serialVersionUID = 1L;
        private JButton _message = new JButton(){
            /**
             * 
             */
            private static final long serialVersionUID = 1L;
 
            @Override
            public void repaint()
            {
            }
        };
       
        
        @SuppressWarnings("deprecation")
        public ToolTipSingle(String msg) {   
            super(null);
     
            int cntText=msg.length();
            int with = cntText*11+40;
            int height = _height;
 
            Rectangle screenRect = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds();
            int screenHeight = (int) screenRect.height;
            int screenWidth = (int) screenRect.width;
        
            int posx = screenWidth/2-with/2;
            int posy = screenHeight/2-height/2;
            
            setBounds(posx, posy, with, height);
            _message.setFont(getMessageFont());
            _message.setText(msg);
 
            _message.setFocusPainted(false);
            //_message.setEnabled(false);
            add(_message, BorderLayout.CENTER);
 
            setAlwaysOnTop(true);
            setLocationRelativeTo(null);
            
            show(true);
        }
 
        /**
         * 动画开始
         *
         */
        public void animate() {
            new Animation(this).start();
        }
    }
 
    /**
     * 此类处则动画处理
     *
     */
    class Animation extends Thread 
    {
 
        ToolTipSingle _single;
 
        public Animation(ToolTipSingle single) {
            this._single = single;
        }
 
        /**
         * 开始动画处理
         */
        @SuppressWarnings("deprecation")
        public void run() {
            try {                
                float value = 0.0f;
                while((value+0.02)<1.0f)
                {
                    value+=0.02f;
                    com.sun.awt.AWTUtilities.setWindowOpacity(_single, value);
                    Thread.sleep(10);
                }
               
                while(_displayTime>50)
                {
                    Thread.sleep(50);
                    _displayTime = _displayTime-50;
                }
                
                value=1;
                while((value-0.02)>0f)
                {
                    value-=0.02f;
                    com.sun.awt.AWTUtilities.setWindowOpacity(_single, value);  
                    Thread.sleep(20);
                }
                
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
            
            _single.show(false);
        }
    }
 
    /**
     * 设定显示信息
     *
     * @param icon
     * @param msg
     */
    public void show(String msg) {
        new ToolTipSingle(msg).animate();
    }
 
 
    /**
     * 获得当前消息字体
     *
     * @return
     */
    public Font getMessageFont() {
        return _font;
    }
 
    /**
     * 设置当前消息字体
     *
     * @param font
     */
    public void setMessageFont(Font font) {
        _font = font;
    }
 
    /**
     * 获得显示时间
     *
     * @return
     */
    public int getDisplayTime() {
        return _displayTime;
    }
 
    /**
     * 设置显示时间
     *
     * @param displayTime
     */
    public void setDisplayTime(int displayTime) {
        this._displayTime = displayTime;
    }
 
 
    /**
     * 获得循环步长
     *
     * @return
     */
    public int getStep() {
        return _step;
    }
 
    /**
     * 设定循环步长
     *
     * @param _step
     */
    public void setStep(int _step) {
        this._step = _step;
    }
 
    public int getStepTime() {
        return _stepTime;
    }
 
    public void setStepTime(int _stepTime) {
        this._stepTime = _stepTime;
    }
    
    
    public static void main(String[] argv)
    {
        new SwingText_08().show("全部任务已经载入完成!");
    }
}