Swing界面布局(FormLayout)

FormLayout layout= new FormLayout("5dlu,40dlu:grow,5dlu,20dlu:grow,5dlu,100dlu:grow,5dlu"

,"min");

layout.setColumnGroups(new int[][]{{2, 4}}); //分组

FormDebugPanel panel = new FormDebugPanel(); //调试面板

panel.setLayout(layout);

CellConstraints c = new CellConstraints();

panel.add(createLabel("label2",100,200),c.xy(2, 1,CellConstraints.LEFT,CellConstraints.TOP)); //方向F

panel.add(createLabel("label4",100,100),c.xy(4, 1));

panel.add(createLabel("label6",100,100),c.xy(6, 1));

<1>行:表示高度 对齐方式有TOP,BOTTOM,FILL(组件占据整行),CENTER

列:表示宽度 对齐方式有LEFT,RIGHT,FIL(组件占据整列),CENTER

<2>修饰单位:

行 列:pref(p)组件实际大小,fill

行 :minx组件最小大小

列 :max(50dlu:pref)最大50dlu

<3>其他举例

fill:100dlu:grow(0.50)

<4>Swing中设置的组件大小和dlu单位的比是1:2

label.setPreferredSize(new Dimension(prefWidth, prefHeight));