I'm following this tutorial
After I ran it on my Android phone, it generated this error in LogCat;
02-27 08:47:14.592: D/ActivityThread(27680): setTargetHeapUtilization:0.25
02-27 08:47:14.592: D/ActivityThread(27680): setTargetHeapIdealFree:8388608
02-27 08:47:14.592: D/ActivityThread(27680): setTargetHeapConcurrentStart:2097152
02-27 08:47:15.522: D/libEGL(27680): loaded /system/lib/egl/libEGL_adreno200.so
02-27 08:47:15.642: D/libEGL(27680): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
02-27 08:47:15.642: D/libEGL(27680): loaded /system/lib/egl/libGLESv2_adreno200.so
02-27 08:47:15.702: I/Adreno200-EGL(27680): <qeglDrvAPI_eglInitialize:299>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_JB_REL_2.0.3.04.01.02.21.119_msm8625_JB_REL_2.0.3_CL3357771_release_AU (CL3357771)
02-27 08:47:15.702: I/Adreno200-EGL(27680): Build Date: 04/04/13 Thu
02-27 08:47:15.702: I/Adreno200-EGL(27680): Local Branch:
02-27 08:47:15.702: I/Adreno200-EGL(27680): Remote Branch: m/jb_rel_2.0.3
02-27 08:47:15.702: I/Adreno200-EGL(27680): Local Patches: NONE
02-27 08:47:15.702: I/Adreno200-EGL(27680): Reconstruct Branch: AU_LINUX_ANDROID_JB_REL_2.0.3.04.01.02.21.119 + NOTHING
02-27 08:47:15.802: D/OpenGLRenderer(27680): Enabling debug mode 0
02-27 08:47:27.672: E/MailApp(27680): Could not send email
02-27 08:47:27.672: E/MailApp(27680): java.lang.NullPointerException
02-27 08:47:27.672: E/MailApp(27680): at com.sofblue.activity.Mail.send(Mail.java:83)
02-27 08:47:27.672: E/MailApp(27680): at com.sofblue.activity.Login.enviar(Login.java:47)
02-27 08:47:27.672: E/MailApp(27680): at java.lang.reflect.Method.invokeNative(Native Method)
02-27 08:47:27.672: E/MailApp(27680): at java.lang.reflect.Method.invoke(Method.java:511)
02-27 08:47:27.672: E/MailApp(27680): at android.view.View$1.onClick(View.java:3675)
02-27 08:47:27.672: E/MailApp(27680): at android.view.View.performClick(View.java:4191)
02-27 08:47:27.672: E/MailApp(27680): at android.view.View$PerformClick.run(View.java:17229)
02-27 08:47:27.672: E/MailApp(27680): at android.os.Handler.handleCallback(Handler.java:615)
02-27 08:47:27.672: E/MailApp(27680): at android.os.Handler.dispatchMessage(Handler.java:92)
02-27 08:47:27.672: E/MailApp(27680): at android.os.Looper.loop(Looper.java:137)
02-27 08:47:27.672: E/MailApp(27680): at android.app.ActivityThread.main(ActivityThread.java:4960)
02-27 08:47:27.672: E/MailApp(27680): at java.lang.reflect.Method.invokeNative(Native Method)
02-27 08:47:27.672: E/MailApp(27680): at java.lang.reflect.Method.invoke(Method.java:511)
02-27 08:47:27.672: E/MailApp(27680): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
02-27 08:47:27.672: E/MailApp(27680): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
02-27 08:47:27.672: E/MailApp(27680): at dalvik.system.NativeStart.main(Native Method)
My Class Login
package com.sofblue.activity;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.example.login1.R;
public class Login extends Activity {
private Button btnEnviar;
Mail m = new Mail("[email protected]", "password");
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
btnEnviar = (Button) findViewById(R.id.btnEnviar);
}
public void enviar(View view) {
new Thread(new Runnable() {
@Override
public void run() {
String[] toArr = { "[email protected]", "[email protected]" };
m.set_to(toArr);
m.set_from("[email protected]");
m.set_subject("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) {
// Toast.makeText(MailApp.this,
// "There was a problem sending the email.",
// Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
}
}
My Mail class
package com.sofblue.activity;
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();
this._user = user;
this._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;
}
public String get_user() {
return _user;
}
public void set_user(String _user) {
this._user = _user;
}
public String get_pass() {
return _pass;
}
public void set_pass(String _pass) {
this._pass = _pass;
}
public String[] get_to() {
return _to;
}
public void set_to(String[] _to) {
this._to = _to;
}
public String get_from() {
return _from;
}
public void set_from(String _from) {
this._from = _from;
}
public String get_port() {
return _port;
}
public void set_port(String _port) {
this._port = _port;
}
public String get_sport() {
return _sport;
}
public void set_sport(String _sport) {
this._sport = _sport;
}
public String get_host() {
return _host;
}
public void set_host(String _host) {
this._host = _host;
}
public String get_subject() {
return _subject;
}
public void set_subject(String _subject) {
this._subject = _subject;
}
public String get_body() {
return _body;
}
public void set_body(String _body) {
this._body = _body;
}
public boolean is_auth() {
return _auth;
}
public void set_auth(boolean _auth) {
this._auth = _auth;
}
public boolean is_debuggable() {
return _debuggable;
}
public void set_debuggable(boolean _debuggable) {
this._debuggable = _debuggable;
}
public Multipart get_multipart() {
return _multipart;
}
public void set_multipart(Multipart _multipart) {
this._multipart = _multipart;
}
}
Everything indicates that the error is here in the class Login
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) {
Toast.makeText(this,
"There was a problem sending the email.",
Toast.LENGTH_LONG).show();
Log.e("MailApp", "Could not send email", e);
}
and in the Main class
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);
but I do not know how to fix it.
I accept suggestions;