How to create a search bar similar to Google search style in JAVA GUI

问题

I am trying to create a search feature in my program similar to google search bar, where when user is typing it actually searches the database and displays the current result in a pop-out list below the JTextField. I am new to java GUI programming therefore I am unclear about all the java components therefore it is hard to find suitable components which fulfil my needs, especially the component I need to use for the pop out drop down list below the text field. I hope some experts can show me some insight.

回答1:

SwingX API would helpful to solve this issue. You can use the following code to implement auto complete feature to editable ComboBox.

import javax.swing.*;
import org.jdesktop.swingx.autocomplete.AutoCompleteDecorator;
import java.awt.*;
public class Demo {

    JFrame frame = new JFrame("");
    AutoCompleteDecorator decorator;
    JComboBox combobox;

    public Demo() {
        combobox = new JComboBox(new Object[]{"","Ester", "Jordi",
            "Jordina", "Jorge", "Sergi"});
        AutoCompleteDecorator.decorate(combobox);
        frame.setSize(400,400);
        frame.setLocationRelativeTo(null);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLayout(new FlowLayout());

        frame.add(combobox);
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        Demo d = new Demo();
    }
}

来源：https://stackoverflow.com/questions/26550559/how-to-create-a-search-bar-similar-to-google-search-style-in-java-gui