sending email with default id without using intents

Question

I am new to android, so I need a little bit of quick help. I tried this code from here. There was no error but the problem arises in send fucntion's transport.send() Could you please rectify it. help will be much appreciated

my logcat file
01-02 22:59:27.603: D/gralloc_goldfish(755): Emulator without GPU emulation detected.
01-02 22:59:31.013: V/hari(755): edittext texttype your mail here
01-02 22:59:31.723: I/Choreographer(755): Skipped 34 frames!  The application may be doing too much work on its main thread.
01-02 22:59:35.463: V/hari(755): mail:007sanketh@gmail.com

01-02 22:59:35.782: D/dalvikvm(755): GC_FOR_ALLOC freed 139K, 9% free 2875K/3132K, paused 29ms, total 41ms
01-02 22:59:36.172: V/sanketh(755): there
01-02 22:59:36.172: V/sanketh(755): username:007sanketh@gmail.com

01-02 22:59:36.182: V/sanketh(755): from add:007sanketh@gmail.com
01-02 22:59:36.182: V/sanketh(755): subject:This is an email sent using my Mail JavaMail wrapper from an Android device.
01-02 22:59:36.182: V/sanketh(755): body:Email body.
01-02 22:59:36.502: D/dalvikvm(755): GC_FOR_ALLOC freed 368K, 14% free 3017K/3504K, paused 27ms, total 31ms
01-02 22:59:36.502: E/MailApp(755): Could not send email
01-02 22:59:36.502: E/MailApp(755): android.os.NetworkOnMainThreadException
01-02 22:59:36.502: E/MailApp(755):     at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1133)
01-02 22:59:36.502: E/MailApp(755):     at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
01-02 22:59:36.502: E/MailApp(755):     at java.net.InetAddress.getLocalHost(InetAddress.java:365)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.internet.InternetAddress.getLocalAddress(InternetAddress.java:517)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.internet.UniqueValue.getUniqueMessageIDValue(UniqueValue.java:99)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.internet.MimeMessage.updateMessageID(MimeMessage.java:2054)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2076)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2042)
01-02 22:59:36.502: E/MailApp(755):     at javax.mail.Transport.send(Transport.java:117)
01-02 22:59:36.502: E/MailApp(755):     at com.example.emailsendnoui.sending.send(sending.java:119)
01-02 22:59:36.502: E/MailApp(755):     at com.example.emailsendnoui.MainActivitySecond.send_mail(MainActivitySecond.java:86)
01-02 22:59:36.502: E/MailApp(755):     at com.example.emailsendnoui.MainActivitySecond.access$0(MainActivitySecond.java:73)
01-02 22:59:36.502: E/MailApp(755):     at com.example.emailsendnoui.MainActivitySecond$1.onClick(MainActivitySecond.java:47)
01-02 22:59:36.502: E/MailApp(755):     at android.view.View.performClick(View.java:4240)
01-02 22:59:36.502: E/MailApp(755):     at android.view.View$PerformClick.run(View.java:17721)
01-02 22:59:36.502: E/MailApp(755):     at android.os.Handler.handleCallback(Handler.java:730)
01-02 22:59:36.502: E/MailApp(755):     at android.os.Handler.dispatchMessage(Handler.java:92)
01-02 22:59:36.502: E/MailApp(755):     at android.os.Looper.loop(Looper.java:137)
01-02 22:59:36.502: E/MailApp(755):     at android.app.ActivityThread.main(ActivityThread.java:5103)
01-02 22:59:36.502: E/MailApp(755):     at java.lang.reflect.Method.invokeNative(Native Method)
01-02 22:59:36.502: E/MailApp(755):     at java.lang.reflect.Method.invoke(Method.java:525)
01-02 22:59:36.502: E/MailApp(755):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
01-02 22:59:36.502: E/MailApp(755):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
01-02 22:59:36.502: E/MailApp(755):     at dalvik.system.NativeStart.main(Native Method)
01-02 22:59:36.512: I/Choreographer(755): Skipped 274 frames!  The application may be doing too much work on its main thread.


sending java file

package com.example.emailsendnoui;
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;

import android.util.Log;


public class sending 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 sending() { 
    _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 = "testing"; // email subject 
    _body = "working condition"; // 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 sending(String user, String pass) { 
    this(); 

    _user = user; 
    _pass = pass; 
  } 

  public boolean send() throws Exception {

    Properties props = _setProperties();
    Log.v("sanketh","there");
 String sent="no success";
 Log.v("sanketh","username:"+_user);
 Log.v("sanketh","password:"+_pass);
 //Log.v("sanketh","to add:"+_to[0]);
 Log.v("sanketh","from add:"+_from);
 Log.v("sanketh","subject:"+_subject);
 Log.v("sanketh","body:"+_body);
    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,_to);
      Transport.send(msg); 
      Log.v("sanketh","here");
      sent="success";
      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; 
  } 

public void setTo(String[] toArr) {
this._to = toArr;
}

public void setFrom(String string) {
this._from = string;
}

public void setSubject(String string) {
this._subject = string;
}
  // more of the getters and setters ….. 
} 

class which creates and instantiates objects  of tht sending class

    private void send_mail()
    {
      sending m = new sending("username", "password"); 

      String[] toArr = {"asdadqwc@gmail.com", "sdasad@sdad.com"}; 
      m.setTo(toArr); 
      m.setFrom("we2342asd@gmail.com"); 
      m.setSubject("This is an email sent using my Mail JavaMail wrapper from an Android device."); 
      m.setBody("Email body."); 

      try { 
        //m.addAttachment("/sdcard/filelocation"); 

        if(m.send()) { 
          Toast.makeText(this, "Email was sent successfully.", Toast.LENGTH_LONG).show(); 
        } else { 
          Toast.makeText(this, "Email was not sent.", Toast.LENGTH_LONG).show(); 
        } 
      } catch(Exception e) { enter code here
        //Toast.makeText(MailApp.this, "There was a problem sending the email.", Toast.LENGTH_LONG).show(); 
        Log.e("MailApp", "Could not send email", e); 
      }
    }

score 0 · Answer 1 · answered Jan 03 '14 at 04:31

0

android.os.NetworkOnMainThreadException

You can't do network operations on the main thread. Do them in an AsyncTask or a background thread instead.

answered Jan 03 '14 at 04:31

David S.

6,567
1
25
45

score 0 · Answer 2 · edited May 23 '17 at 12:19

0

for sending mail you are using network,network operations you cna't do in main thread that is why you are getting android.os.NetworkOnMainThreadException so do the network operations in using AsyncTask ,to know more details about using AsyncTask and about the exception you are getting visit link How to fix android.os.NetworkOnMainThreadException?

edited May 23 '17 at 12:19

Community

1
1

answered Jan 03 '14 at 04:36

praveen

420
4
18

whereever you are calling some activity or class to send mail that call you can make in AsycTask – praveen Jan 03 '14 at 06:06

score 0 · Answer 3 · edited May 23 '17 at 11:49

The exception you have got is NetworkOnMainThreadException. To overcome that problem you can add this code near your e mail function:

if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = 
        new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}

For more info: How to fix android.os.NetworkOnMainThreadException?

//edit

This is how you use async task to get away with networkonmainthreadexception (sample code):

 private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {

            private ApplicationListAdappter activity;
            private ImageView bmImage;

            public DownloadImageTask(ApplicationListAdappter applicationListAdappter, ImageView imageView) {
                this.activity = applicationListAdappter;
                this.bmImage = imageView;
            }

            protected void onPreExecute() {

            }

            protected Bitmap doInBackground(String... urls) {
                String urldisplay = urls[0];
                Bitmap mIcon11 = null;
                try {
                    InputStream in = new java.net.URL(urldisplay).openStream();
                    mIcon11 = BitmapFactory.decodeStream(in);
                } catch (Exception e) {
                    Log.e("Error", "image download error");
                }
                return mIcon11;
            }

            protected void onPostExecute(Bitmap result) {
                bmImage.setImageBitmap(result);
            }
        }

execute the async task:

DownloadImageTask loadImages = new DownloadImageTask(ApplicationListAdappter.this, imageView);
loadImages.execute(ap.getIconURL());

this one works but could someone just say where do i use async task on i mean on which class — SQLDoctor, Jan 03 '14 at 05:01
I have edited the answer. you mentioned the previous answer works. if it is so accept the answer. — TharakaNirmana, Jan 03 '14 at 06:26

sending email with default id without using intents

3 Answers3