Java GroupLayoutポジショニング

Question

GroupLayoutをセットアップしようとすると問題が発生します。私はoracleのウェブサイトからチュートリアルを外そうとしていますが、私の人生はそれを理解することができません。以下は私の現在のレイアウトデザインとそれに続くコードですが、私が間違っていることはわかりません。

GroupLayout layout = new GroupLayout(mainPanel); 
     mainPanel.setLayout(layout); 

     layout.setAutoCreateGaps(true); 
     layout.setAutoCreateContainerGaps(true); 

     layout.setHorizontalGroup(
       layout.createSequentialGroup() 
       .addComponent(launchButton) 
       .addComponent(modeComboBox) 
       .addComponent(difficultyComboBox) 
       .addComponent(mapComboBox) 
       .addComponent(startButton) 
       .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING))  
     ); 

     layout.setVerticalGroup(
       layout.createSequentialGroup() 
       .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE) 
         .addComponent(launchButton) 
         .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)) 
          .addComponent(modeComboBox) 
          .addComponent(difficultyComboBox) 
          .addComponent(mapComboBox) 
          .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)) 
          .addComponent(startButton)) 
     ); 

私の目標は、私は、NetBeansを起動し、あなたの写真のようなものを打ち出し示した

Answer 1

...それは下図のようなものを探して終わることです。これを試して、それがあなたが探しているものかどうかを見てください。私が思った

package quicktest; 

public class ChaosLayout extends javax.swing.JPanel { 

    /** 
    * Creates new form ChaosLayout 
    */ 
    public ChaosLayout() { 
     initComponents(); 
    } 

    /** 
    * This method is called from within the constructor to initialize the form. 
    * WARNING: Do NOT modify this code. The content of this method is always 
    * regenerated by the Form Editor. 
    */ 
    @SuppressWarnings("unchecked") 
    // <editor-fold defaultstate="collapsed" desc="Generated Code">       
    private void initComponents() { 

     jButton1 = new javax.swing.JButton(); 
     jButton2 = new javax.swing.JButton(); 
     jButton3 = new javax.swing.JButton(); 
     jButton4 = new javax.swing.JButton(); 
     jButton5 = new javax.swing.JButton(); 

     jButton1.setText("jButton1"); 

     jButton2.setText("jButton2"); 

     jButton3.setText("jButton3"); 

     jButton4.setText("jButton4"); 

     jButton5.setText("jButton5"); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this); 
     this.setLayout(layout); 
     layout.setHorizontalGroup(
     layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
     .addGroup(layout.createSequentialGroup() 
      .addGap(55, 55, 55) 
      .addComponent(jButton3) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
      .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER) 
       .addComponent(jButton1) 
       .addComponent(jButton2) 
       .addComponent(jButton5)) 
      .addGap(18, 18, 18) 
      .addComponent(jButton4) 
      .addContainerGap(84, Short.MAX_VALUE)) 
    ); 
     layout.setVerticalGroup(
     layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
     .addGroup(layout.createSequentialGroup() 
      .addContainerGap() 
      .addComponent(jButton1) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
      .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
       .addComponent(jButton2) 
       .addComponent(jButton3) 
       .addComponent(jButton4)) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 180, Short.MAX_VALUE) 
      .addComponent(jButton5) 
      .addContainerGap()) 
    ); 
    }// </editor-fold>       


    // Variables declaration - do not modify      
    private javax.swing.JButton jButton1; 
    private javax.swing.JButton jButton2; 
    private javax.swing.JButton jButton3; 
    private javax.swing.JButton jButton4; 
    private javax.swing.JButton jButton5; 
    // End of variables declaration     
} 

賢明な変数名と同じレイアウト、と私はボタンにすべて同じ幅を作るために制約を追加しましたが、少し良く見えました。

package quicktest; 

public class ChaosLayout extends javax.swing.JPanel { 

    /** 
    * Creates new form ChaosLayout 
    */ 
    public ChaosLayout() { 
     initComponents(); 
    } 

    /** 
    * This method is called from within the constructor to initialize the form. 
    * WARNING: Do NOT modify this code. The content of this method is always 
    * regenerated by the Form Editor. 
    */ 
    @SuppressWarnings("unchecked") 
    // <editor-fold defaultstate="collapsed" desc="Generated Code">       
    private void initComponents() { 

     launch = new javax.swing.JButton(); 
     chaos = new javax.swing.JButton(); 
     trials = new javax.swing.JButton(); 
     map = new javax.swing.JButton(); 
     start = new javax.swing.JButton(); 

     launch.setText("Launch"); 

     chaos.setText("Chaos"); 

     trials.setText("Trials"); 

     map.setText("Map"); 

     start.setText("Start"); 

     javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this); 
     this.setLayout(layout); 
     layout.setHorizontalGroup(
     layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
     .addGroup(layout.createSequentialGroup() 
      .addGap(55, 55, 55) 
      .addComponent(trials) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
      .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.CENTER) 
       .addComponent(launch) 
       .addComponent(chaos) 
       .addComponent(start)) 
      .addGap(18, 18, 18) 
      .addComponent(map) 
      .addContainerGap(99, Short.MAX_VALUE)) 
    ); 

     layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {chaos, launch, map, start, trials}); 

     layout.setVerticalGroup(
     layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) 
     .addGroup(layout.createSequentialGroup() 
      .addContainerGap() 
      .addComponent(launch) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED) 
      .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) 
       .addComponent(chaos) 
       .addComponent(trials) 
       .addComponent(map)) 
      .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 180, Short.MAX_VALUE) 
      .addComponent(start) 
      .addContainerGap()) 
    ); 
    }// </editor-fold>       


    // Variables declaration - do not modify      
    private javax.swing.JButton chaos; 
    private javax.swing.JButton launch; 
    private javax.swing.JButton map; 
    private javax.swing.JButton start; 
    private javax.swing.JButton trials; 
    // End of variables declaration     
}