devicediscoverypanel.java

蓝牙 Obex 源码 J2me 初学者必须的东西

import javax.swing.*;          
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.bluetooth.*;

public class DeviceDiscoveryPanel extends JPanel implements ActionListener{


	JButton discoverButton = new JButton("Discover Devices");
	JButton nextButton = new JButton("Next");
	JTextArea textarea = new JTextArea("",10, 25);
	DeviceDiscoverer deviceDiscoverer = null;
	File file = null;
	JFrame frame = null;

	public DeviceDiscoveryPanel(JFrame frame, File file){

		this.frame = frame;
		this.file = file;
		

		Font font = new Font("Arial", Font.PLAIN, 12);

		setBackground(Color.WHITE);
		setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));

		ImageIcon headerIcon = new ImageIcon("header1.gif","image header");
		JLabel headerLabel = new JLabel(headerIcon);
		headerLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(headerLabel);

		ImageIcon spacerIcon1 = new ImageIcon("spacer30.gif","image spacer");
		JLabel spacerLabel1 = new JLabel(spacerIcon1);
		spacerLabel1.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(spacerLabel1);


		JLabel textlabel1 = new JLabel("Please click on the button below to discover Bluetooth devices: ");
		textlabel1.setAlignmentX(Component.CENTER_ALIGNMENT);
		textlabel1.setFont(font);
		add(textlabel1);


		discoverButton.setAlignmentX(Component.CENTER_ALIGNMENT);
		discoverButton.addActionListener(this);	
		add(discoverButton);


		ImageIcon spacerIcon2 = new ImageIcon("spacer30.gif","image spacer");
		JLabel spacerLabel2 = new JLabel(spacerIcon2);
		spacerLabel2.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(spacerLabel2);



		JScrollPane scrollPane = new JScrollPane(textarea);			
		textarea.setEditable(false);
		scrollPane.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(scrollPane);


		ImageIcon spacerIcon3 = new ImageIcon("spacer10.gif","image spacer");
		JLabel spacerLabel3 = new JLabel(spacerIcon3);
		spacerLabel3.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(spacerLabel3);


		JLabel textlabel2 = new JLabel("Please click on the NEXT button to continue. ");
		textlabel2.setAlignmentX(Component.CENTER_ALIGNMENT);
		textlabel2.setFont(font);
		add(textlabel2);


		nextButton.setAlignmentX(Component.CENTER_ALIGNMENT);
		nextButton.addActionListener(this);
		nextButton.setEnabled(false);	
		add(nextButton);


		ImageIcon spacerIcon4 = new ImageIcon("spacer10.gif","image spacer");
		JLabel spacerLabel4 = new JLabel(spacerIcon4);
		spacerLabel4.setAlignmentX(Component.CENTER_ALIGNMENT);
		add(spacerLabel4);


	}



	public void actionPerformed(ActionEvent e) {


		if (e.getSource() == discoverButton) {
			deviceDiscoverer = new DeviceDiscoverer(this);

		}		

		if (e.getSource() == nextButton) {
			frame.setContentPane(new DeviceSelectPanel(frame, file, deviceDiscoverer.remoteDevices));
			frame.pack();
		}


	}

	public void updateStatus(String message){

		textarea.append("\n" + message);

	}


}