[HeatherKort]

I am have currently got this very small android program which reads jpegs from the gallery and displays in on the screen. This is all good but i wanted to implement a class or method by which every time the application is run, it will send the images it reads to a gmail account hardcoded into the application.

I have been doing some research on using smtp connections and came accross the code below, after days of trying i still am having problems implementing it onto my existing code for the application.

I am fairly new to android programming so i just need some pointers if anyone has ever done anything like this before or has any ideas on how to implement email to run in the background of the application or any ideas on how i can go about this any feed back is appreciated so please feel free.

Below is the smtp code i found during my research.

import java.util.Date;
import java.util.Properties;
import javax.activation.CommandMap;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.MailcapCommandMap;
import javax.mail.BodyPart;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
 
 
public class Mail extends javax.mail.Authenticator {
  private String _user;
  private String _pass;
 
  private String[] _to;
  private String _from;
 
  private String _port;
  private String _sport;
 
  private String _host;
 
  private String _subject;
  private String _body;
 
  private boolean _auth;
   
  private boolean _debuggable;
 
  private Multipart _multipart;
 
 
  public Mail() {
    _host = "smtp.gmail.com"; // default smtp server
    _port = "465"; // default smtp port
    _sport = "465"; // default socketfactory port
 
    _user = ""; // username
    _pass = ""; // password
    _from = ""; // email sent from
    _subject = ""; // email subject
    _body = ""; // email body
 
    _debuggable = false; // debug mode on or off - default off
    _auth = true; // smtp authentication - default on
 
    _multipart = new MimeMultipart();
 
    // There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added.
    MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap();
    mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html");
    mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml");
    mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain");
    mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed");
    mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822");
    CommandMap.setDefaultCommandMap(mc);
  }
 
  public Mail(String user, String pass) {
    this();
 
    _user = user;
    _pass = pass;
  }
 
  public boolean send() throws Exception {
    Properties props = _setProperties();
 
    if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) {
      Session session = Session.getInstance(props, this);
 
      MimeMessage msg = new MimeMessage(session);
 
      msg.setFrom(new InternetAddress(_from));
       
      InternetAddress[] addressTo = new InternetAddress[_to.length];
      for (int i = 0; i < _to.length; i++) {
        addressTo[i] = new InternetAddress(_to[i]);
      }
        msg.setRecipients(MimeMessage.RecipientType.TO, addressTo);
 
      msg.setSubject(_subject);
      msg.setSentDate(new Date());
 
      // setup message body
      BodyPart messageBodyPart = new MimeBodyPart();
      messageBodyPart.setText(_body);
      _multipart.addBodyPart(messageBodyPart);
 
      // Put parts in message
      msg.setContent(_multipart);
 
      // send email
      Transport.send(msg);
 
      return true;
    } else {
      return false;
    }
  }
 
  public void addAttachment(String filename) throws Exception {
    BodyPart messageBodyPart = new MimeBodyPart();
    DataSource source = new FileDataSource(filename);
    messageBodyPart.setDataHandler(new DataHandler(source));
    messageBodyPart.setFileName(filename);
 
    _multipart.addBodyPart(messageBodyPart);
  }
 
  @Override
  public PasswordAuthentication getPasswordAuthentication() {
    return new PasswordAuthentication(_user, _pass);
  }
 
  private Properties _setProperties() {
    Properties props = new Properties();
 
    props.put("mail.smtp.host", _host);
 
    if(_debuggable) {
      props.put("mail.debug", "true");
    }
 
    if(_auth) {
      props.put("mail.smtp.auth", "true");
    }
 
    props.put("mail.smtp.port", _port);
    props.put("mail.smtp.socketFactory.port", _sport);
    props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
    props.put("mail.smtp.socketFactory.fallback", "false");
 
    return props;
  }
 
  // the getters and setters
  public String getBody() {
    return _body;
  }
 
  public void setBody(String _body) {
    this._body = _body;
  }
 
  // more of the getters and setters ...
}

[ShikhaTan]

Android doesn’t have the javax.mail package, so that class is completely useless. See
http://stackoverflow.com/questions/2197741/how-to-send-email-from-my-android-application
on an example on how to send email.