swing常用布局

Posted 2020-08-14 Kooing

1，FlowLayout

窗口的默认布局

设置窗口布局方法（下面不重复

setLayout(new FlowLayout());

设置容器布局方法

比如容器 con1

con1.setLayout(new FlowLayout())

2.BorderLayout

        add(new JLabel("huang"),BorderLayout.CENTER);
        add(new JLabel("huang"),BorderLayout.NORTH);
        add(new JLabel("huang"),BorderLayout.WEST);
        //如果有组件con1，con1.add(con2,bor2.CENTER)

3.GridLayout

GridLayout grid1=new GridLayout(a,b);//弄一个aXb的网格

写一个棋盘

        JPanel pane1=new JPanel();
        GridLayout grid1=new GridLayout(12,12);
        pane1.setLayout(grid1);
        Label label[][]=new Label[12][12];
        for(int i=0;i<12;i++){
            for(int j=0;j<12;j++){
                label[i][j]=new Label();
                if((i+j)%2==0)
                    label[i][j].setBackground(Color.black);
                else
                    label[i][j].setBackground(Color.white);
                pane1.add(label[i][j]);
            }
        }
        add(pane1,BorderLayout.CENTER);
        add(new JButton("north"),BorderLayout.NORTH);
        add(new JButton("south"),BorderLayout.SOUTH);
        add(new JButton("west"),BorderLayout.WEST);
        add(new JButton("east"),BorderLayout.EAST);

 

5.BoxLayout布局

和上面的布局有点不同，语法上像一个组件一样add上去

 

//方法一
BoxLayout box1=new BoxLayout(Container con1,1)
//方法二
//使用Box类的静态方法
Box.createHorizontalBox()//水平盒式布局
Box.createVerticalBox()//垂直~
Box.createHorizontalStruct(int width)//空白
Box.createVerticalStruct(int  height)//~

        setLayout(new FlowLayout());
        Box box1,box2,boxBase;
        boxBase=Box.createHorizontalBox();
        box1=Box.createVerticalBox();
        box1.add(new JLabel("name"));
        box1.add(Box.createVerticalStrut(8));
        box1.add(new JLabel("sex"));
        box1.add(Box.createVerticalStrut(8));
        box1.add(new JLabel("age"));
        box2=Box.createVerticalBox();
        box2.add(new JTextField(10));
        box2.add(Box.createVerticalStrut(8));
        box2.add(new JTextField(10));
        box2.add(Box.createVerticalStrut(8));
        box2.add(new JTextField(10));
        boxBase.add(box1);
        boxBase.add(Box.createHorizontalStrut(8));
        boxBase.add(box2);
        add(boxBase);