Swing setResizable和setBounds

Question

您好我正在基于我的项目的基于摇摆的gui部分工作,我需要将setBounds JFrame的方法与setResizable调用同步,所以我这样做:

    setResizable(true);
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();  
    Rectangle rect = new Rectangle(screenSize.width/2 - screenSize.width/4,  screenSize.height/2 - screenSize.height/4, screenSize.width/2, screenSize.height/2);
    setBounds(rect);
    setResizable(false);

但结果是我的框架没有得到给定的边界它只是禁用调整大小功能.如果我删除最后一个setResizable调用,那么表单将获得正确的边界.实际上我有一个基于框架和许多面板的向导,我更改框架上的面板状态.只有在一个面板中,我想给用户提供调整框架大小的机会,否则它应该是固定大小的.所以在我的主框架中我实现了两个方法,enableWizardMode和enablePlayingGameMode:

    @Override
    public void enablePlayingGameMode() {
setResizable(true);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();  
        setBounds(new Rectangle(screenSize.width/10, screenSize.height/10, screenSize.width - screenSize.width/5, screenSize.height- screenSize.height/5));
    }

    @Override
    public void enableWizardMode() {
setResizable(true);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();  
        setBounds(new Rectangle(screenSize.width/2 - screenSize.width/4, screenSize.height/2 - screenSize.height/4, screenSize.width/2, screenSize.height/2));
setResizable(false);
    }

我尝试使用IComponentListener,但它没有帮助我随机调整框架大小.我还尝试使用SwingUtilities.invokeLater将resizable标志设置为false,但它也没有帮助.有人知道这个问题的解决方案吗？我运行Linux和oracle jdk7.谢谢.

Answer 1

设置preferredSize和调用pack()一直对我有用.

import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Toolkit;

import javax.swing.JFrame;

public class SizeFoo {

   public static void main(String[] args) {
      Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      Rectangle rect = new Rectangle(screenSize.width / 2 - screenSize.width
            / 4, screenSize.height / 2 - screenSize.height / 4,
            screenSize.width / 2, screenSize.height / 2);
      System.out.println("rect: " + rect);
      JFrame frame = new JFrame("Test");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setPreferredSize(new Dimension(rect.width, rect.height));
      frame.setResizable(false);
      frame.pack();
      frame.setLocation(rect.x, rect.y);
      //frame.setLocationRelativeTo(null);
      frame.setVisible(true);
      System.out.println("JFrame size:" + frame.getSize());
   }
}