[英]JPanel doesn't show up completely until I resize JFrame
I am making a board game and need two panels on a JFrame. 我正在制作棋盘游戏,需要在JFrame上使用两个面板。 I added them and they look good enough but one of them, the big grid to play the game, doesn't show all the way, I only see a little, I have to resize the window manually.
我添加了它们,它们看起来不错,但其中一个,玩游戏的大网格,并没有一直显示,我只看到一点,我必须手动调整窗口大小。
I have tried with different layouts and nothing works. 我试过不同的布局,没有任何作用。 This is the code in which I add the components to the frame:
这是我将组件添加到框架的代码:
panel.setSize(500, 100);
panel.setBackground(Color.WHITE);
panel.add(botonArriba);
panel.add(botonAbajo);
panel.add(botonIzquierda);
panel.add(botonDerecha);
panel.setVisible(true);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.setLocationRelativeTo(null);
tablero.setSize(281, 300);
this.add(tablero, BorderLayout.CENTER);
this.add(panel, BorderLayout.SOUTH);
this.setTitle("2048");
this.pack();
this.setVisible(true);
Use setPreferredSize(...)
which is what the layout manager tries to achieve. 使用
setPreferredSize(...)
,这是布局管理器尝试实现的。 Of course the panel needs a LayoutManager too. 当然面板也需要LayoutManager。
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