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Sto costruendo una GUI in Netbeans 7.1 che rappresenta una pompa di infusione per un progetto su apparecchiature ospedaliere. Premendo jButton1 dovrebbe mostrare una certa jLabel con indica che è in corso un'infusione. Premendo di nuovo jButton1 dovrebbe interromperlo. L'unico problema che ho è che il pulsante deve essere cliccato due volte prima che funzioni la prima volta. Dopo di ciò, funziona esattamente come voglio che funzioni. Ho cercato più thread su questo problema, ma altre soluzioni non sembrano funzionare. Qualcuno può aiutarmi? Grazie in anticipo!Java jButton deve essere cliccato due volte prima di iniziare l'attività
package infusion;
public class Infusion {
static Interface screen;
public Infusion(){
screen = new Interface();
screen.setVisible(true);
screen.jLabel3.setVisible(true);
screen.jButton1.setVisible(true);
}
public static void main(String[] args) {
// TODO code application logic here
Infusion infusion = new Infusion();
}
}
Questo è il codice per l'interfaccia utente (generato principalmente da Netbeans). L'implementazione di jButton1ActionPerformed è l'unico bit di codice che ho adattato.
package infusion;
public class Interface extends javax.swing.JFrame {
boolean pump1Running = false;
/**
* Creates new form Interface
*/
public Interface() {
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() {
jPanel1 = new javax.swing.JPanel();
jLabel3 = new javax.swing.JLabel();
jSeparator1 = new javax.swing.JSeparator();
jButton1 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(new java.awt.Color(255, 255, 255));
setPreferredSize(new java.awt.Dimension(800, 562));
setResizable(false);
jPanel1.setPreferredSize(new java.awt.Dimension(800, 540));
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 800, Short.MAX_VALUE)
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 540, Short.MAX_VALUE)
);
jLabel3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Pauze.png"))); // NOI18N
jLabel3.setText("Infusion Paused");
jButton1.setText("Start infusion");
jButton1.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(36, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(jButton1)
.addGap(18, 18, 18)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 189, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jSeparator1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 649, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(0, 22, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(51, 51, 51)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 64, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 59, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
);
pack();
}// </editor-fold>
//Booleans
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
if (pump1Running == false){
jLabel3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Pauze.png")));
jLabel3.setText("Infusion Paused");
jButton1.setText("Start Infusion");
pump1Running = true;
}
else {//if (pump1Running == true){
jLabel3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/arrows64.gif")));
jLabel3.setText("Running infusion");
jButton1.setText("Stop Infusion");
pump1Running = false;
}
// TODO add your handling code here:
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/*
* If Nimbus (introduced in Java SE 6) is not available, stay with the
* default look and feel. For details see
* http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Interface.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Interface.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Interface.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Interface.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/*
* Create and display the form
*/
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Interface().setVisible(true);
}
});
}
// Variables declaration - do not modify
public static javax.swing.JButton jButton1;
public javax.swing.JLabel jLabel3;
public javax.swing.JPanel jPanel1;
private javax.swing.JSeparator jSeparator1;
// End of variables declaration
}
suona come un problema di messa a fuoco –