fileselectpanel.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.*;

public class FileSelectPanel extends JPanel implements ActionListener{


	JFileChooser filechooser = new JFileChooser();
	JButton nextButton = new JButton("Next");
	JButton chooseButton = new JButton("Choose...");
	JFrame frame = null;
	File file = null;

	public FileSelectPanel(JFrame frame){

		this.frame = frame;

		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 select a song or ringtone by clicking on the button below: ");
		textlabel1.setAlignmentX(Component.CENTER_ALIGNMENT);
		textlabel1.setFont(font);
		add(textlabel1);


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


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


		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);	
		add(nextButton);


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

	}



	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == chooseButton ) {
			filechooser.addChoosableFileFilter(new MusicFileFilter());
			int returnVal = filechooser.showOpenDialog(this);
			file = filechooser.getSelectedFile();
		} 

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


	}




}