标签：需要 ane src 参数详解 str constrain height ext extends
GridBagLayout主要使用到以下4个参数：
columnWidths：设置列数；例如：gridBagLayout.columnWidths = new int[]{0}; 表示只有一列
rowHeights：设置行数；例如：gridBagLayout.rowHeights = new int[]{0, 0}; 表示总共有2行
columnWeights：设置各列所占宽度比例；gridBagLayout.columnWeights = new double[]{1.0}; 表示，列的宽度为容器的宽度，即撑满容器
rowWeights：设置各行所占的高度比例；gridBagLayout.rowWeights = new double[]{0.2,0.8};；表示第一行的高度只占容器高度的2分，第二行的高度占容器的8份
GridBagContraints壳设置的参数如下：
在使用GridBagLayout布局方式之前，需要了解下面的参数：
例如如下代码：
public class ClientPanel extends JPanel { /** * Create the panel. */ public ClientPanel() { GridBagLayout gridBagLayout = new GridBagLayout(); gridBagLayout.columnWidths = new int[]{0}; //设置了总共有一列 gridBagLayout.rowHeights = new int[]{0, 0}; //设置了总共有2行 gridBagLayout.columnWeights = new double[]{1.0}; //设置了列的宽度为容器宽度 gridBagLayout.rowWeights = new double[]{0.2,0.8}; //第一行的高度占了容器的2份，第二行的高度占了容器的8份 setLayout(gridBagLayout); JPanel panel = new JPanel(); panel.setBackground(Color.PINK); GridBagConstraints gbc_panel = new GridBagConstraints(); gbc_panel.insets = new Insets(0, 0, 5, 0); gbc_panel.fill = GridBagConstraints.BOTH; gbc_panel.gridx = 0; gbc_panel.gridy = 0; add(panel, gbc_panel); JPanel panel_1 = new JPanel(); panel_1.setBackground(Color.ORANGE); GridBagConstraints gbc_panel_1 = new GridBagConstraints(); gbc_panel_1.fill = GridBagConstraints.BOTH; gbc_panel_1.gridx = 0; gbc_panel_1.gridy = 1; add(panel_1, gbc_panel_1); } }
运行结果如下：
以下代码：
public class ClientPanel extends JPanel { /** * Create the panel. */ public ClientPanel() { GridBagLayout gridBagLayout = new GridBagLayout(); gridBagLayout.columnWidths = new int[]{0, 0, 0,0}; //设置了4列 gridBagLayout.rowHeights = new int[]{0, 0}; //设置了2行 gridBagLayout.columnWeights = new double[]{0.25,0.25,0.25,0.25}; gridBagLayout.rowWeights = new double[]{0.2,0.8}; setLayout(gridBagLayout); JPanel panel = new JPanel(); panel.setBackground(Color.PINK); GridBagConstraints gbc_panel = new GridBagConstraints(); gbc_panel.insets = new Insets(0, 0, 5, 0); gbc_panel.fill = GridBagConstraints.BOTH; gbc_panel.gridx = 3; gbc_panel.gridy = 0; add(panel, gbc_panel); JPanel panel_1 = new JPanel(); panel_1.setBackground(Color.ORANGE); GridBagConstraints gbc_panel_1 = new GridBagConstraints(); gbc_panel_1.insets = new Insets(0, 0, 0, 5); gbc_panel_1.fill = GridBagConstraints.BOTH; gbc_panel_1.gridx = 0; gbc_panel_1.gridy = 1; add(panel_1, gbc_panel_1); } }
运行结果为：
标签：需要 ane src 参数详解 str constrain height ext extends
原文地址：https://www.cnblogs.com/liyuanhong/p/12127836.html
