使用GridLayout时，是否可以将组件添加到特定网格单元？ [英] Can I add a component to a specific grid cell when a GridLayout is used?

问题描述

当我将GridLayout设置为JPanel然后添加内容时，它随后以文本顺序（从左到右，从上到下）添加。但我想在特定单元格中添加一个元素（在第j列的第i行）。有可能吗？

When I set the GridLayout to the JPanel and then add something, it is added subsequently in the "text order" (from left to right, from top to bottom). But I want to add an element to a specific cell (in the i-th row in the j-th column). Is it possible?

推荐答案

不，您不能在特定单元格中添加组件。您可以做的是添加空的JPanel对象并在数组中保持对它们的引用，然后以您想要的任何顺序向它们添加组件。

No, you can't add components at a specific cell. What you can do is add empty JPanel objects and hold on to references to them in an array, then add components to them in any order you want.

类似于：

int i = 3;
int j = 4;
JPanel[][] panelHolder = new JPanel[i][j];    
setLayout(new GridLayout(i,j));

for(int m = 0; m < i; m++) {
   for(int n = 0; n < j; n++) {
      panelHolder[m][n] = new JPanel();
      add(panelHolder[m][n]);
   }
}

然后，您可以直接添加到其中一个JPanel对象：

Then later, you can add directly to one of the JPanel objects:

panelHolder[2][3].add(new JButton("Foo"));

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