java如何在GridBagLayout中设置组件的大小
正如我所读到的,在GridLayout和GrigBagLayout中调整组件的大小真的很难。在我的例子中,我有一个GridBagLayout,有两列两行。第一行有两个标签,第二行有两个扩展JTable的组件(类型^{
我的问题是,我无法让这两个JTables填满JFrame,直到它的底部。我试过setSize(), setPreferredSize(), setBounds()
。。。但它们根本不起作用。我也试着通过constraints.fill = GridBagConstraints.VERTICAL/SOUTH/CENTER
来做这件事。。。但我什么也得不到。
我还尝试在JFrame内部设置JPanel的大小,但它不起作用
这是我的代码:
public static void main(String[] args)
{
JFrame pantalla = new JFrame();
pantalla.getContentPane().setLayout(new GridBagLayout());
GridBagConstraints constraints = new GridBagConstraints();
JLabel tab1Label = new JLabel("Tablero 1");
JLabel tab2Label = new JLabel("Tablero 2");
Tablero tablero1 = new Tablero();
Tablero tablero2 = new Tablero();
tablero1.setPreferredSize(new Dimension(400,400));
tablero1.setBounds(0, 0, 400, 400);
tablero1.setBorder(new LineBorder(Color.gray, 2));
constraints.gridx = 0;
constraints.gridy = 0;
constraints.gridwidth = 1;
constraints.gridheight = 1;
constraints.insets = new Insets(0, 0, 20, 0);
pantalla.getContentPane().add(tab1Label, constraints);
constraints.gridx = 1;
constraints.gridy = 0;
constraints.gridwidth = 1;
constraints.gridheight = 1;
constraints.insets = new Insets(0, 0, 20, 0);
pantalla.getContentPane().add(tab2Label, constraints);
constraints.insets = new Insets(0, 0, 0, 0);
constraints.fill = GridBagConstraints.VERTICAL;
constraints.gridx = 0;
constraints.gridy = 1;
constraints.gridwidth = 1;
constraints.gridheight = 1;
pantalla.getContentPane().add(tablero1, constraints);
constraints.fill = GridBagConstraints.VERTICAL;
constraints.gridx = 1;
constraints.gridy = 1;
constraints.gridwidth = 1;
constraints.gridheight = 1;
pantalla.getContentPane().add(tablero2, constraints);
pantalla.pack();
pantalla.setSize(800, 400);
pantalla.setVisible(true);
pantalla.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
结果如下:
我知道还有其他更容易实现的方法,但使用GridBagLayout实际上是一个要求
共 (0) 个答案