我需要高效的产品项目搜索GUI到销售点应用程序，目前我在文本字段中使用弹出窗口并且它包含到表格但效率不高。
在我的弹出窗口中只显示产品代码我需要显示其他产品详细信息，如CODE，类别，名称，价格等..以确定正确的产品。 ！[在此输入图像说明] [1]
以下图片是我的要求。
////////////////////////////// 我有编辑mr.splungebob的答案来构建AutoCompleate组合框，但是它有List＆gt;的问题。过滤请查看代码并帮助我开发它。
以下是我添加回答的代码 // DetailedComboBox
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Point;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.plaf.basic.BasicComboPopup;
import javax.swing.plaf.basic.ComboPopup;
import javax.swing.plaf.metal.MetalComboBoxUI;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
/**
*
* @author W.A.R.R.Wijesinghe
*/
public class DetailedComboBox extends JComboBox {
public static enum Alignment {
LEFT, RIGHT
}
private List<List<? extends Object>> tableData;
private String[] columnNames;
private int[] columnWidths;
private int displayColumn;
private Alignment popupAlignment = Alignment.LEFT;
/**
* Construct a TableComboBox object
*/
public DetailedComboBox(String[] colNames, int[] colWidths, int displayColumnIndex) {
super();
this.columnNames = colNames;
this.columnWidths = colWidths;
this.displayColumn = displayColumnIndex;
setUI(new TableComboBoxUI());
setEditable(true);
this.setSelectedIndex(-1);
JTextField field = (JTextField) this.getEditor().getEditorComponent();
field.setText("");
field.addKeyListener(new ComboKeyHandler(this));
}
/**
* Set the type of alignment for the popup table
*/
public void setPopupAlignment(Alignment alignment) {
popupAlignment = alignment;
}
/**
* Populate the combobox and drop-down table with the supplied data. If the
* supplied List is non-null and non-empty, it is assumed that the data is a
* List of Lists to be used for the drop-down table. The combobox is also
* populated with the column data from the column defined by
* <code>displayColumn</code>.
*/
public void setTableData(List<List<? extends Object>> tableData) {
this.tableData = (tableData == null
? new ArrayList<List<? extends Object>>() : tableData);
// even though the incoming data is for the table, we must also
// populate the combobox's data, so first clear the previous list.
removeAllItems();
// then load the combobox with data from the appropriate column
Iterator<List<? extends Object>> iter = this.tableData.iterator();
while (iter.hasNext()) {
List<? extends Object> rowData = iter.next();
addItem(rowData.get(displayColumn));
}
}
public List<? extends Object> getSelectedRow() {
return tableData.get(getSelectedIndex());
}
public List<? extends Object> getRowAt(int row) {
return tableData.get(row);
}
/**
* The handler for the combobox's components
*/
private class TableComboBoxUI extends MetalComboBoxUI {
/**
* Create a popup component for the ComboBox
*/
@Override
protected ComboPopup createPopup() {
return new TableComboPopup(comboBox, this);
}
/**
* Return the JList component
*/
public JList getList() {
return listBox;
}
}
/**
* The drop-down of the combobox, which is a JTable instead of a JList.
*/
private class TableComboPopup extends BasicComboPopup implements ListSelectionListener, ItemListener {
private final JTable table;
private TableComboBoxUI comboBoxUI;
private PopupTableModel tableModel;
private JScrollPane scroll;
// private JList list = new JList();
// private ListSelectionListener selectionListener;
// private ItemListener itemListener;
/**
* Construct a popup component that's a table
*/
public TableComboPopup(JComboBox combo, TableComboBoxUI ui) {
super(combo);
this.comboBoxUI = ui;
tableModel = new PopupTableModel();
table = new JTable(tableModel);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.getTableHeader().setReorderingAllowed(false);
TableColumnModel tableColumnModel = table.getColumnModel();
tableColumnModel.setColumnSelectionAllowed(false);
for (int index = 0; index < table.getColumnCount(); index++) {
TableColumn tableColumn = tableColumnModel.getColumn(index);
tableColumn.setPreferredWidth(columnWidths[index]);
}
scroll = new JScrollPane(table);
scroll.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
selectionModel.addListSelectionListener(this);
combo.addItemListener(this);
table.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent event) {
Point p = event.getPoint();
int row = table.rowAtPoint(p);
comboBox.setSelectedIndex(row);
hide();
}
});
table.setBackground(UIManager.getColor("ComboBox.listBackground"));
table.setForeground(UIManager.getColor("ComboBox.listForeground"));
}
/**
* This method is overridden from BasicComboPopup
*/
@Override
public void show() {
if (isEnabled()) {
super.removeAll();
int scrollWidth = table.getPreferredSize().width
+ ((Integer) UIManager.get("ScrollBar.width")).intValue() + 1;
int scrollHeight = comboBoxUI.getList().
getPreferredScrollableViewportSize().height;
scroll.setPreferredSize(new Dimension(scrollWidth, scrollHeight));
super.add(scroll);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.removeListSelectionListener(this);
selectRow();
selectionModel.addListSelectionListener(this);
int scrollX = 0;
int scrollY = comboBox.getBounds().height;
if (popupAlignment == Alignment.RIGHT) {
scrollX = comboBox.getBounds().width - scrollWidth;
}
show(comboBox, scrollX, scrollY);
}
}
/**
* Implemention of ListSelectionListener
*/
@Override
public void valueChanged(ListSelectionEvent event) {
comboBox.setSelectedIndex(table.getSelectedRow());
}
/**
* Implemention of ItemListener
*/
@Override
public void itemStateChanged(ItemEvent event) {
if (event.getStateChange() != ItemEvent.DESELECTED) {
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.removeListSelectionListener(this);
selectRow();
selectionModel.addListSelectionListener(this);
}
}
/**
* Sync the selected row of the table with the selected row of the
* combo.
*/
private void selectRow() {
int index = comboBox.getSelectedIndex();
if (index != -1) {
table.setRowSelectionInterval(index, index);
table.scrollRectToVisible(table.getCellRect(index, 0, true));
}
}
}
/**
* A model for the popup table's data
*/
private class PopupTableModel extends AbstractTableModel {
/**
* Return the # of columns in the drop-down table
*/
@Override
public int getColumnCount() {
return columnNames.length;
}
/**
* Return the # of rows in the drop-down table
*/
@Override
public int getRowCount() {
return tableData == null ? 0 : tableData.size();
}
/**
* Determine the value for a given cell
*/
@Override
public Object getValueAt(int row, int col) {
if (tableData == null || tableData.size() == 0) {
return "";
}
return tableData.get(row).get(col);
}
/**
* All cells in the drop-down table are uneditable
*/
@Override
public boolean isCellEditable(int row, int col) {
return false;
}
/**
* Pull the column names out of the tableInfo object for the header
*/
@Override
public String getColumnName(int column) {
String columnName = null;
if (column >= 0 && column < columnNames.length) {
columnName = columnNames[column].toString();
}
return (columnName == null) ? super.getColumnName(column) : columnName;
}
}
}
class ComboKeyHandler extends KeyAdapter {
private final DetailedComboBox comboBox;
// private final Vector<String> list = new Vector<String>();
private final List<List<?>> list = new ArrayList<>();
public ComboKeyHandler(DetailedComboBox combo) {
this.comboBox = combo;
for (int i = 0; i < comboBox.getModel().getSize(); i++) {
List<? extends Object> rowData = combo.getRowAt(i);
// name.setText(rowData.get(1).toString());
// capital.setText(rowData.get(2).toString());
list.add(rowData);
// list.addElement((String) comboBox.getItemAt(i));
}
}
private boolean shouldHide = false;
@Override
public void keyTyped(final KeyEvent e) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
String text = ((JTextField) e.getSource()).getText();
System.out.println(text);
if (text.length() == 0) {
setSuggestionModel(comboBox, list, "");
comboBox.hidePopup();
} else {
List<List<?>> m = getSuggestedModel(list, text);
if (m.isEmpty() || shouldHide) {
comboBox.hidePopup();
} else {
setSuggestionModel(comboBox, m, text);
comboBox.showPopup();
}
}
}
});
}
@Override
public void keyPressed(KeyEvent e) {
JTextField textField = (JTextField) e.getSource();
String text = textField.getText();
shouldHide = false;
switch (e.getKeyCode()) {
case KeyEvent.VK_RIGHT:
for (Iterator<List<?>> it = list.iterator(); it.hasNext();) {
if (!it.next().contains("How")) {
it.remove(); // NOTE: Iterator's remove method, not ArrayList's, is used.
}
return;
}
/*
* for (String s : list { if (s.startsWith(text)) {
* textField.setText(s); return; } }
*
*/
break;
case KeyEvent.VK_ENTER:
if (!list.contains(text)) {
list.add(new ArrayList<>(Arrays.asList(text, "a", "a")));
//setSuggestionModel(comboBox, new DefaultComboBoxModel(list), text);
setSuggestionModel(comboBox, getSuggestedModel(list, text), text);
}
shouldHide = false;
break;
case KeyEvent.VK_ESCAPE:
shouldHide = true;
break;
default:
break;
}
}
private static void setSuggestionModel(DetailedComboBox comboBox, List<List<?>> newList, String str) {
comboBox.setTableData(newList);
comboBox.setSelectedIndex(-1);
((JTextField) comboBox.getEditor().getEditorComponent()).setText(str);
}
private static List<List<?>> getSuggestedModel(List<List<?>> list, String text) {
List<List<?>> m = new ArrayList<>();
for (Iterator<List<?>> it = list.iterator(); it.hasNext();) {
if (!it.next().contains(text)) {
it.remove(); // NOTE: Iterator's remove method, not ArrayList's, is used.
}
m = (List<List<?>>) it;
}
return m;
/*
* for (String s : list) { if (s.startsWith(text)) { m.addElement(s); }
* } return m;
*
*/
}
}
// DetailedComboBoxDemo
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.swing.*;
/**
*
* @author W.A.R.R.Wijesinghe
*/
public class DetailedComboBoxDemo implements Runnable {
private DetailedComboBox combo;
private JTextField name;
private JTextField capital;
@Override
public void run() {
List<List<?>> tableData = new ArrayList<>();
tableData.add(new ArrayList<>( Arrays.asList("MD", "Maryland", "Annapolis")));
tableData.add(new ArrayList<>(
Arrays.asList("NH", "New Hampshire", "Concord")));
tableData.add(new ArrayList<>(
Arrays.asList("NJ", "New Jersey", "Trenton")));
tableData.add(new ArrayList<>(
Arrays.asList("NM", "New Mexico", "Santa Fe")));
tableData.add(new ArrayList<>(
Arrays.asList("ND", "North Dakota", "Bismark")));
String[] columns = new String[]{"State", "Name", "Capital"};
int[] widths = new int[]{50, 100, 100};
combo = new DetailedComboBox(columns, widths, 0);
combo.setTableData(tableData);
combo.setSelectedIndex(-1);
combo.setPopupAlignment(DetailedComboBox.Alignment.LEFT);
combo.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
showDetails();
}
});
name = new JTextField(10);
capital = new JTextField(10);
name.setEditable(false);
capital.setEditable(false);
JPanel p = new JPanel(new FlowLayout());
p.add(new JLabel("State"));
p.add(combo);
p.add(new JLabel("Name"));
p.add(name);
p.add(new JLabel("Capital"));
p.add(capital);
JFrame frame = new JFrame("DetailedComboBox Demo");
frame.getContentPane().add(p, BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private void showDetails() {
List<? extends Object> rowData = combo.getSelectedRow();
name.setText(rowData.get(1).toString());
capital.setText(rowData.get(2).toString());
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new DetailedComboBoxDemo());
}
}
答案 0 :(得分：6)
这是一个JComboBox，它使用JTable来下拉而不是JList。你需要给它表数据（列表列表）而不是通常的。对不起，没有自动完成。
我多年来一直在使用它。它有效，但我没有做出任何承诺。哎呀，实验中可能还有一些死代码。这只是我多年来从不同代码样本中抓取的不同想法的混合物。我确信还有改进的余地。
<强> DetailedComboBox：
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.List;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.plaf.basic.*;
import javax.swing.plaf.metal.*;
import javax.swing.table.*;
/**
* A JComboBox that has a JTable as a drop-down instead of a JList
*/
public class DetailedComboBox extends JComboBox
{
public static enum Alignment {LEFT, RIGHT}
private List<List<? extends Object>> tableData;
private String[] columnNames;
private int[] columnWidths;
private int displayColumn;
private Alignment popupAlignment = Alignment.LEFT;
/**
* Construct a TableComboBox object
*/
public DetailedComboBox(String[] colNames, int[] colWidths,
int displayColumnIndex)
{
super();
this.columnNames = colNames;
this.columnWidths = colWidths;
this.displayColumn = displayColumnIndex;
setUI(new TableComboBoxUI());
setEditable(false);
}
/**
* Set the type of alignment for the popup table
*/
public void setPopupAlignment(Alignment alignment)
{
popupAlignment = alignment;
}
/**
* Populate the combobox and drop-down table with the supplied data.
* If the supplied List is non-null and non-empty, it is assumed that
* the data is a List of Lists to be used for the drop-down table.
* The combobox is also populated with the column data from the
* column defined by <code>displayColumn</code>.
*/
public void setTableData(List<List<? extends Object>> tableData)
{
this.tableData = (tableData == null ?
new ArrayList<List<? extends Object>>() : tableData);
// even though the incoming data is for the table, we must also
// populate the combobox's data, so first clear the previous list.
removeAllItems();
// then load the combobox with data from the appropriate column
Iterator<List<? extends Object>> iter = this.tableData.iterator();
while (iter.hasNext())
{
List<? extends Object> rowData = iter.next();
addItem(rowData.get(displayColumn));
}
}
public List<? extends Object> getSelectedRow()
{
return tableData.get(getSelectedIndex());
}
/**
* The handler for the combobox's components
*/
private class TableComboBoxUI extends MetalComboBoxUI
{
/**
* Create a popup component for the ComboBox
*/
@Override
protected ComboPopup createPopup()
{
return new TableComboPopup(comboBox, this);
}
/**
* Return the JList component
*/
public JList getList()
{
return listBox;
}
}
/**
* The drop-down of the combobox, which is a JTable instead of a JList.
*/
private class TableComboPopup extends BasicComboPopup
implements ListSelectionListener, ItemListener
{
private final JTable table;
private TableComboBoxUI comboBoxUI;
private PopupTableModel tableModel;
private JScrollPane scroll;
// private JList list = new JList();
// private ListSelectionListener selectionListener;
// private ItemListener itemListener;
/**
* Construct a popup component that's a table
*/
public TableComboPopup(JComboBox combo, TableComboBoxUI ui)
{
super(combo);
this.comboBoxUI = ui;
tableModel = new PopupTableModel();
table = new JTable(tableModel);
table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
table.getTableHeader().setReorderingAllowed(false);
TableColumnModel tableColumnModel = table.getColumnModel();
tableColumnModel.setColumnSelectionAllowed(false);
for (int index = 0; index < table.getColumnCount(); index++)
{
TableColumn tableColumn = tableColumnModel.getColumn(index);
tableColumn.setPreferredWidth(columnWidths[index]);
}
scroll = new JScrollPane(table);
scroll.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
selectionModel.addListSelectionListener(this);
combo.addItemListener(this);
table.addMouseListener(new MouseAdapter()
{
@Override
public void mousePressed(MouseEvent event)
{
Point p = event.getPoint();
int row = table.rowAtPoint(p);
comboBox.setSelectedIndex(row);
hide();
}
});
table.setBackground(UIManager.getColor("ComboBox.listBackground"));
table.setForeground(UIManager.getColor("ComboBox.listForeground"));
}
/**
* This method is overridden from BasicComboPopup
*/
@Override
public void show()
{
if (isEnabled())
{
super.removeAll();
int scrollWidth = table.getPreferredSize().width +
((Integer) UIManager.get("ScrollBar.width")).intValue() + 1;
int scrollHeight = comboBoxUI.getList().
getPreferredScrollableViewportSize().height;
scroll.setPreferredSize(new Dimension(scrollWidth, scrollHeight));
super.add(scroll);
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.removeListSelectionListener(this);
selectRow();
selectionModel.addListSelectionListener(this);
int scrollX = 0;
int scrollY = comboBox.getBounds().height;
if (popupAlignment == Alignment.RIGHT)
{
scrollX = comboBox.getBounds().width - scrollWidth;
}
show(comboBox, scrollX, scrollY);
}
}
/**
* Implemention of ListSelectionListener
*/
public void valueChanged(ListSelectionEvent event)
{
comboBox.setSelectedIndex(table.getSelectedRow());
}
/**
* Implemention of ItemListener
*/
public void itemStateChanged(ItemEvent event)
{
if (event.getStateChange() != ItemEvent.DESELECTED)
{
ListSelectionModel selectionModel = table.getSelectionModel();
selectionModel.removeListSelectionListener(this);
selectRow();
selectionModel.addListSelectionListener(this);
}
}
/**
* Sync the selected row of the table with the selected row of the combo.
*/
private void selectRow()
{
int index = comboBox.getSelectedIndex();
if (index != -1)
{
table.setRowSelectionInterval(index, index);
table.scrollRectToVisible(table.getCellRect(index, 0, true));
}
}
}
/**
* A model for the popup table's data
*/
private class PopupTableModel extends AbstractTableModel
{
/**
* Return the # of columns in the drop-down table
*/
public int getColumnCount()
{
return columnNames.length;
}
/**
* Return the # of rows in the drop-down table
*/
public int getRowCount()
{
return tableData == null ? 0 : tableData.size();
}
/**
* Determine the value for a given cell
*/
public Object getValueAt(int row, int col)
{
if (tableData == null || tableData.size() == 0)
{
return "";
}
return tableData.get(row).get(col);
}
/**
* All cells in the drop-down table are uneditable
*/
@Override
public boolean isCellEditable(int row, int col)
{
return false;
}
/**
* Pull the column names out of the tableInfo object for the header
*/
@Override
public String getColumnName(int column)
{
String columnName = null;
if (column >= 0 && column < columnNames.length)
{
columnName = columnNames[column].toString();
}
return (columnName == null) ? super.getColumnName(column) : columnName;
}
}
}
<强>驱动程序：
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.List;
import javax.swing.*;
public class DetailedComboBoxDemo implements Runnable
{
private DetailedComboBox combo;
private JTextField name;
private JTextField capital;
public void run()
{
List<List<?>> tableData = new ArrayList<List<?>>();
tableData.add(new ArrayList<String>(
Arrays.asList("MD", "Maryland", "Annapolis")));
tableData.add(new ArrayList<String>(
Arrays.asList("NH", "New Hampshire", "Concord")));
tableData.add(new ArrayList<String>(
Arrays.asList("NJ", "New Jersey", "Trenton")));
tableData.add(new ArrayList<String>(
Arrays.asList("NM", "New Mexico", "Santa Fe")));
tableData.add(new ArrayList<String>(
Arrays.asList("ND", "North Dakota", "Bismark")));
String[] columns = new String[]{"State", "Name", "Capital"};
int[] widths = new int[]{50, 100, 100};
combo = new DetailedComboBox(columns, widths, 0);
combo.setTableData(tableData);
combo.setSelectedIndex(-1);
combo.setPopupAlignment(DetailedComboBox.Alignment.LEFT);
combo.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
showDetails();
}
});
name = new JTextField(10);
capital = new JTextField(10);
name.setEditable(false);
capital.setEditable(false);
JPanel p = new JPanel(new FlowLayout());
p.add(new JLabel("State"));
p.add(combo);
p.add(new JLabel("Name"));
p.add(name);
p.add(new JLabel("Capital"));
p.add(capital);
JFrame frame = new JFrame("DetailedComboBox Demo");
frame.getContentPane().add(p, BorderLayout.CENTER);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private void showDetails()
{
List<? extends Object> rowData = combo.getSelectedRow();
name.setText(rowData.get(1).toString());
capital.setText(rowData.get(2).toString());
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new DetailedComboBoxDemo());
}
}
答案 1 :(得分：0)
要实现这一点，您需要使用BasicComboxUI和BasicComboPopup的自定义子类。在BasicComboPopup返回的Popup中使用JTable而不是JList。