JTextField未在GridBagLayout中对齐

2 回答

• 0

  GridBagLayout根据列中组件的首选大小调整列的大小 .

  • 由于“Limpar lista de disciplinas”占据的空间比“Adicionar disciplina”更多，所以底部的按钮会略微偏离你的宽度 . 如果您首先创建Limpar，则可以根据Limpar的首选宽度设置Adicionar的首选宽度 . 即

  JButton limparDisciplina = new JButton("Limpar lista de disciplinas");
  JButton adicionaDisciplina = new JButton("Adicionar disciplina");
  adicionaDisciplina.setPreferredSize(limparDisciplina.getPreferredSize());
  

  • 左侧的标签是ipadx = 50，但是在右侧标签的ipadx = 0.这就是为什么文本字段看起来比右侧的标签更靠近左侧的标签 . 如果宽度仍然是一个问题，你可以使用相同的技巧设置标签或文本字段的首选大小，如我建议的按钮 .

  回复于 2024-04-19T20:47:00+08:00
• 0

  import java.awt.*;
  import javax.swing.*;
  class example extends JFrame
  {
      public example()
      {
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  setLayout(new GridBagLayout());
  setSize(800,800);
      GridBagConstraints gbc = new GridBagConstraints();
      gbc.insets = new Insets(10, 10, 10, 10);
  
      JLabel labelNome = new JLabel("Nome:");
      gbc.gridx = 0;
      gbc.gridy = 0;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelNome, gbc);
  
      JTextField tfNome = new JTextField();
      gbc.gridx = 1;
      gbc.ipadx = 50;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfNome, gbc);
  
      JLabel labelIdade = new JLabel("Idade :");
      gbc.ipadx = 0;
      gbc.gridx = 2;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelIdade, gbc);
  
      JTextField tfIdade = new JTextField();
      gbc.gridx = 3;
      gbc.ipadx = 50;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfIdade, gbc);
  
      JLabel labelEndereco = new JLabel("Endereço :");
      gbc.ipadx = 50;
      gbc.gridx = 0;
      gbc.gridy = 1;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelEndereco, gbc);
  
      JTextField tfEndereco = new JTextField();
      gbc.ipadx = 50;
      gbc.gridx = 1;
      gbc.gridwidth = 3;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfEndereco, gbc);
  
      JLabel labelFiliacao = new JLabel("Filiação :");
      gbc.gridwidth = 1;
      gbc.gridx = 0;
      gbc.gridy = 2;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelFiliacao, gbc);
  
      JTextField tfFiliacao = new JTextField();
      gbc.gridx = 1;
      gbc.ipadx = 50;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfFiliacao, gbc);
  
      JLabel labelTurma = new JLabel("Turma :");
      gbc.ipadx = 0;
      gbc.gridx = 2;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelTurma, gbc);
  
      JTextField tfTurma = new JTextField();
      gbc.gridx = 3;
      gbc.ipadx = 50;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfTurma, gbc);
  
      JLabel labelDisciplina = new JLabel("Disciplina :");
      gbc.ipadx = 0;
      gbc.gridx = 0;
      gbc.gridy = 3;
      gbc.fill = GridBagConstraints.BOTH;
      add(labelDisciplina, gbc);
  
      JTextField tfDisciplina = new JTextField();
      gbc.gridwidth = 1;
      gbc.ipadx = 50;
      gbc.ipady = 0;
      gbc.gridx = 1;
      gbc.gridwidth = 3;
      gbc.fill = GridBagConstraints.HORIZONTAL;
      add(tfDisciplina, gbc);
  
      JButton adicionaDisciplina = new JButton("Adicionar disciplina");
      gbc.gridwidth = 2;
      gbc.gridx = 0;
      gbc.gridy = 4;
      gbc.fill = GridBagConstraints.NONE;
      add(adicionaDisciplina, gbc);
  
      JButton limparDisciplina = new JButton("Limpar lista de disciplinas");
      gbc.gridx = 2;
      add(limparDisciplina, gbc);
  
      JButton botaoSalvar = new JButton("Salvar");
      gbc.gridx = 0;
      gbc.gridy = 5;
      add(botaoSalvar, gbc);
  
      JButton botaoCancelar = new JButton("Cancelar");
      gbc.gridx = 2;
      add(botaoCancelar, gbc);
  
      setVisible(true);
      }
      public static void main(String aaa[]){new example();}
      }
  

  使用此代码

  回复于 2024-04-19T20:47:00+08:00