我只是尝试使用一些GUI组件的Java BorderLayout和GridLayout.

我正在尝试右对齐JLabel并左对齐JTextFields,以便它可以更好看.

在setAlignmentX和setHorizo​​ntalAlignment的帮助下,我在stackoverflow本身找到了一些答案.两者都没用.

基本上,我在每个BorderLayout中有3个组件.

> JLabel

> JTextField

> JButton

然后,这些组件将添加到每行的GridLayout中.

码

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

/**

*

* @author dinesh

*/

public class MySettings {

public static void main(String[] args) {

JFrame jf = new JFrame("hi");

//demo Info Panel start

//

JLabel lbldemoExecutablePath = new JLabel("demo Executable Path :");

// lbldemoExecutablePath.setAlignmentX(JLabel.LEADING);

// lbldemoExecutablePath.setAlignmentY(JLabel.LEADING);

// lbldemoExecutablePath.setHorizontalAlignment(SwingConstants.CENTER);

JTextField txtdemoInstallationPath = new JTextField(10);

txtdemoInstallationPath.setEditable(false);

txtdemoInstallationPath.setBackground(Color.WHITE);

txtdemoInstallationPath.setToolTipText("getdemoPath()");

txtdemoInstallationPath.setAlignmentX(JLabel.LEADING);

txtdemoInstallationPath.setAlignmentY(JLabel.LEADING);

JButton btndemoBrowse = new JButton("Browse");

btndemoBrowse.addActionListener(new java.awt.event.ActionListener() {

@Override

public void actionPerformed(java.awt.event.ActionEvent evt) {

System.out.println("demo browse button clicked");

}

});

JPanel pnldemoInfo = new JPanel(new BorderLayout(10, 10));

pnldemoInfo.add(lbldemoExecutablePath, BorderLayout.LINE_START);

pnldemoInfo.add(txtdemoInstallationPath, BorderLayout.CENTER);

pnldemoInfo.add(btndemoBrowse, BorderLayout.LINE_END);

//

//demo info panel end

//sample Info Panel start

//

JLabel lblsampleExecutablePath = new JLabel("sample Executable Path :");

// lblsampleExecutablePath.setAlignmentX(JLabel.LEADING);

// lblsampleExecutablePath.setAlignmentY(JLabel.LEADING);

JTextField txtsampleInstallationPath = new JTextField(10);

txtsampleInstallationPath.setEditable(false);

txtsampleInstallationPath.setBackground(Color.WHITE);

txtsampleInstallationPath.setToolTipText("getsamplePath()");

JButton btnsampleBrowse = new JButton("Browse");

btnsampleBrowse.addActionListener(new java.awt.event.ActionListener() {

@Override

public void actionPerformed(java.awt.event.ActionEvent evt) {

System.out.println("demo browse button clicked");

}

});

JPanel pnlsampleInfo = new JPanel(new BorderLayout(10, 10));

pnlsampleInfo.add(lblsampleExecutablePath, BorderLayout.LINE_START);

pnlsampleInfo.add(txtsampleInstallationPath, BorderLayout.CENTER);

pnlsampleInfo.add(btnsampleBrowse, BorderLayout.LINE_END);

//

//sample info panel end

//app Info Panel start

//

JLabel lblappExecutablePath = new JLabel("app Executable Path :");

// lblappExecutablePath.setAlignmentX(JLabel.LEADING);

JTextField txtappExecutablePath = new JTextField(10);

txtappExecutablePath.setEditable(false);

txtappExecutablePath.setBackground(Color.WHITE);

txtappExecutablePath.setToolTipText("gettxtappExecutablePath()");

JButton btnappBrowse = new JButton("Browse");

btnappBrowse.addActionListener(new java.awt.event.ActionListener() {

@Override

public void actionPerformed(java.awt.event.ActionEvent evt) {

System.out.println("appBrowse browse button clicked");

}

});

JPanel pnlappInfo = new JPanel(new BorderLayout(10, 10));

pnlappInfo.add(lblappExecutablePath, BorderLayout.LINE_START);

pnlappInfo.add(txtappExecutablePath, BorderLayout.CENTER);

pnlappInfo.add(btnappBrowse, BorderLayout.LINE_END);

//

//app info panel end

//logfile Info Panel start

//

JLabel lblLogFilePath = new JLabel("Log File Path :");

// lblLogFilePath.setAlignmentX(JLabel.LEADING);

JTextField txtLogFilePath = new JTextField(10);

txtLogFilePath.setEditable(false);

txtLogFilePath.setBackground(Color.WHITE);

txtLogFilePath.setToolTipText("gettxtLogFilePath()");

JButton btnLogFileBrowse = new JButton("Browse");

btnLogFileBrowse.addActionListener(new java.awt.event.ActionListener() {

@Override

public void actionPerformed(java.awt.event.ActionEvent evt) {

System.out.println("appBrowse browse button clicked");

}

});

JPanel pnlLogFileInfo = new JPanel(new BorderLayout(10, 10));

pnlLogFileInfo.add(lblLogFilePath, BorderLayout.LINE_START);

pnlLogFileInfo.add(txtLogFilePath, BorderLayout.CENTER);

pnlLogFileInfo.add(btnLogFileBrowse, BorderLayout.LINE_END);

//

//logfile info panel end

JPanel pnlGereal = new JPanel(new GridLayout(0, 1));

pnlGereal.add(pnldemoInfo);

pnlGereal.add(pnlsampleInfo);

pnlGereal.add(pnlappInfo);

pnlGereal.add(pnlLogFileInfo);

jf.add(pnlGereal);

jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

//jf.setSize(500, 500);

jf.pack();

jf.setVisible(true);

}

}

我在哪里弄错了？我准确设置对齐的位置？

解决方法:

对齐在这里不起作用,因为BorderLayout使用JLabel的大小并动态调整宽度.

您可以尝试使用此代码查看对齐方式：

JLabel lbldemoExecutablePath = new JLabel( "demo Executable Path :" );

lbldemoExecutablePath.setPreferredSize( new Dimension(200,100) );

lbldemoExecutablePath.setHorizontalAlignment( SwingConstants.RIGHT );

你可以在这里看到你的JLabel(“演示可执行路径：”)是正确的.

但是你不应该在你的代码中使用setPreferredSize()方法我发布它只是为了向你展示对齐是否有效.

标签：java,swing

来源： https://codeday.me/bug/20190528/1170856.html