Question

在Mac OS X中，当在不同选项卡（例如“系统偏好设置”窗口）之间切换时，某些窗口会通过渐变动画（增长/缩小）来改变其大小。在没有视觉闪烁或性能损失的情况下，使用JFrame（Java）实现此类效果的最佳方法是什么。

谢谢。

Answer 1

缩小一点

new Thread(new Runnable()
{
   public void run()
   {
        Dimension dim = jframe.getSize();
        while (dim.getHeight() >= someheightintegeryouwanttoshrintto)
        {
            try
            {
                jframe.setSize((int)(dim.getWidth()), (int)(dim.getHeight()-1));
                Thread.sleep(1);
            }
            catch(InterruptedException ex) 
            {

            }
            dim = jframe.getSize();
        }
    }
}).start();

增长一点

new Thread(new Runnable()
{
   public void run()
   {
        Dimension dim = jframe.getSize();
        while (dim.getHeight() <= sometheightyouwanttoincreaseto)
        {
            try
            {
                jframe.setSize((int)(dim.getWidth()), (int)(dim.getHeight()+1));
                Thread.sleep(1);
            }
            catch(InterruptedException ex) 
            {

            }
            dim = jframe.getSize();
        }
    }
}).start();

Answer 2

我使用单个JFrame并在替换JPanel后调整它的大小。它给出了Mac OS X风格的动画（在LauncherTask类中可能需要稍微更改参数，但要使其更加完美地动画化）

我将这行代码放在主JFrame类中，即我的案例中的Launcher.java。配置类扩展了JPanel类，我使用this.setPreferredSize（）来设置它的大小（这将在LauncherTask类中用于相应地调整大小）

(new Thread(new Configuration(this))).start();

这是用于调整Jpanels

大小的类文件

package com.imoz;

import java.awt.Dimension;

import javax.swing.JFrame;
import javax.swing.SwingWorker;

public class LauncherTask extends SwingWorker<Void, Void> {

float x,y,dx,dy,pixel;
private JFrame parent;
private Dimension target;

public LauncherTask(JFrame parent, Dimension target) {
    this.parent = parent;
    this.target = target;
}

@Override
protected Void doInBackground() throws Exception {
    dx = (float) Math.abs(parent.getWidth() - target.getWidth());
    dy = (float) Math.abs(parent.getHeight() - target.getHeight());

    if( dx >= dy )
        pixel=dx;
    else
        pixel=dy;

    pixel /= 7.5;
    dx=dx/pixel;
    dy=dy/pixel;
    x=parent.getWidth();
    y=parent.getHeight();

    boolean dxGrow = true, dyGrow = true;
    if(parent.getWidth() < target.getWidth())
        dxGrow = false;
    if(parent.getHeight() < target.getHeight())
        dyGrow = false;

    float i = 1f;
    while(i <= pixel)
    {
        if(dxGrow)
            x -= dx;
        else
            x += dx;
        if(dyGrow)
            y -= dy;
        else
            y += dy;

        parent.setSize((int)x, (int)y);
        parent.setLocationRelativeTo(null);
        parent.invalidate();

        i+=1;
    }
    parent.setSize((int)target.getWidth(), (int)target.getHeight());
    parent.setLocationRelativeTo(null);
    return null;
}

}

JFrame动画调整Mac OS X风格

2 个答案: