如何在 Java 中对齐具有不同高度的多个按钮?
java 8object oriented programmingprogramming
要在 Java 中对齐具有不同高度的多个按钮，请尝试以下示例，这里，我们用 GridBagConstraints − 设置了 5 个按钮
GridBagConstraints 约束 = new GridBagConstraints(); 约束.insets = new Insets(5, 5, 5, 5); 约束.anchor = GridBagConstraints.WEST;
此外，要为不同的按钮设置不同的高度，我们使用了 −
component. getPreferredSize().height
以下是对齐具有不同高度的多个按钮的示例 −
示例
package my; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class SwingDemo { public static void main(String[] args) { final JFrame frame = new JFrame(SwingDemo.class.getSimpleName()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new JPanel(new GridBagLayout()); GridBagConstraints constraints = new GridBagConstraints(); constraints.insets = new Insets(5, 5, 5, 5); constraints.anchor = GridBagConstraints.WEST; JButton btn1 = new JButton("1"); panel.add(btn1, constraints); JButton btn2 = new JButton("2"); btn2.setPreferredSize(new Dimension(btn1.getPreferredSize().width, btn1 .getPreferredSize().height + 30)); panel.add(btn2, constraints); JButton btn3 = new JButton("3"); btn3.setPreferredSize(new Dimension(btn2.getPreferredSize().width, btn2 .getPreferredSize().height + 20)); panel.add(btn3, constraints); JButton btn4 = new JButton("4"); btn4.setPreferredSize(new Dimension(btn2.getPreferredSize().width, btn3 .getPreferredSize().height + 5)); panel.add(btn4, constraints); JButton btn5 = new JButton("5"); btn5.setPreferredSize(new Dimension(btn2.getPreferredSize().width, btn3 .getPreferredSize().height + 50)); panel.add(btn5, constraints); frame.add(panel); frame.pack(); frame.setVisible(true); } }
输出
