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POHow to retrieve the Gmail Inbox using Android
 

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  1. POHow to retrieve the Gmail Inbox using Android
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    <p>I am new to <code>android</code> Programming and I want to retrieve <code>Gmail</code> Inbox. After browsing through many pages i got some idea about how to retrieve it, while compiling there is no error but at the time of executing through Emulator, suddenly the application is closed saying. Unfortunately "App_name" has stopped.</p> <p>I am pasting my code over here pls let me know whats the problem.</p> <p>inbox.java where i want to get my inbox.</p> <pre><code>import javax.mail.MessagingException; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.widget.TextView; public class Inbox extends Activity { EmailManager emailManager; private String stmpHost = "smtp.gmail.com"; private String mailServer = "imap.gmail.com"; public String urlServer = "gmail.com"; public String username = "your username"; public String password = "your password"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_inbox); emailManager=new EmailManager(username, password, urlServer, stmpHost, mailServer); try { emailManager.getInboxMails(); emailManager.close(); } catch (MessagingException e) { // TODO Auto-generated catch block e.printStackTrace(); } Intent intent = getIntent(); String message = intent.getStringExtra(DatabaseConnector.EXTRA_MESSAGE); // Create the text view TextView textView = new TextView(this); textView.setTextSize(40); textView.setText(message); // Set the text view as the activity layout setContentView(textView); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_inbox, menu); return true; } } import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Properties; import javax.mail.Folder; import javax.mail.Message; import javax.mail.MessagingException; import javax.mail.Multipart; import javax.mail.Part; import javax.mail.Session; import javax.mail.Store; //import javax.mail.Transport; //import javax.mail.internet.InternetAddress; //import javax.mail.internet.MimeMessage; // //import android.location.Address; import android.util.Log; //import android.widget.Toast; public class EmailManager { private String stmpHost = "smtp.gmail.com"; private String mailServer = "imap.gmail.com"; private EmailAccount account; private Session smtpSession; private Session imapSession; private Folder inbox,sentMail; private Store store,sentstore; boolean isSet; public EmailManager(String username, String password, String urlServer, String stmpHost, String mailServer) { account = new EmailAccount(username, password, urlServer); this.stmpHost = stmpHost; this.mailServer = mailServer; initProtocol(); } private void initProtocol() { EmailAuthenticator authenticator = new EmailAuthenticator(account); Properties props1 = new Properties(); props1.setProperty("mail.transport.protocol", "smtps"); props1.setProperty("mail.host", stmpHost); props1.put("mail.smtp.auth", "true"); props1.put("mail.smtp.port", "465"); props1.put("mail.smtp.socketFactory.port", "465"); props1.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props1.put("mail.smtp.socketFactory.fallback", "false"); props1.setProperty("mail.smtp.quitwait", "false"); smtpSession = Session.getDefaultInstance(props1, authenticator); Properties props2 = new Properties(); props2.setProperty("mail.store.protocol", "imaps"); props2.setProperty("mail.imaps.host", mailServer); props2.setProperty("mail.imaps.port", "993"); props2.setProperty("mail.imaps.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props2.setProperty("mail.imaps.socketFactory.fallback", "false"); imapSession = Session.getInstance(props2); } public void getInboxMails() throws MessagingException { store = imapSession.getStore("imaps"); store.connect(mailServer, account.username, account.password); inbox = store.getFolder("Inbox"); inbox.open(Folder.READ_ONLY); Message[] messages = inbox.getMessages(); // List&lt;Address&gt;addresses=new ArrayList&lt;Address&gt;(); for (int i = messages.length - 1; i &gt;= 0; i--) { Part p = messages[i]; try { String subject = messages[i].getSubject(); Log.v("subject","subject="+subject); String body=getText(p); Log.v("body","body="+body); javax.mail.Address[] address=messages[i].getFrom(); String add=address.toString().trim(); Log.v("address","address="+add); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } return ; } private boolean textIsHtml = false; /** * Return the primary text content of the message. */ private String getText(Part p) throws MessagingException, IOException { if (p.isMimeType("text/*")) { String s = (String)p.getContent(); textIsHtml = p.isMimeType("text/html"); return s; } if (p.isMimeType("multipart/alternative")) { // prefer html text over plain text Multipart mp = (Multipart)p.getContent(); String text = null; for (int i = 0; i &lt; mp.getCount(); i++) { Part bp = mp.getBodyPart(i); if (bp.isMimeType("text/plain")) { if (text == null) text = getText(bp); continue; } else if (bp.isMimeType("text/html")) { String s = getText(bp); if (s != null) return s; } else { return getText(bp); } } return text; } else if (p.isMimeType("multipart/*")) { Multipart mp = (Multipart)p.getContent(); for (int i = 0; i &lt; mp.getCount(); i++) { String s = getText(mp.getBodyPart(i)); if (s != null) return s; } } return null; } public void close() { //Close connection try { // inbox.close(false); // store.close(); sentMail.close(false); sentstore.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } } package com.example.lomenttech; import javax.mail.Authenticator; import javax.mail.PasswordAuthentication; public class EmailAuthenticator extends Authenticator { private EmailAccount account; public EmailAuthenticator(EmailAccount account) { super(); this.account = account; } protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(account.emailAddress, account.password); } } package com.example.lomenttech; public class EmailAccount { public String urlServer = "gmail.com"; public String username = "meenashah.np"; public String password = "your password"; public String emailAddress; public EmailAccount(String username, String password, String urlServer) { this.username = username; this.password = password; this.urlServer = urlServer; this.emailAddress = username + "@" + urlServer; } } package com.example.lomenttech; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWriter; import java.sql.Connection; import java.sql.SQLException; import javax.sql.DataSource; public class ByteArrayDataSource implements DataSource { private byte[] data; private String type; public ByteArrayDataSource(byte[] data, String type) { super(); this.data = data; this.type = type; } public ByteArrayDataSource(byte[] data) { super(); this.data = data; } public void setType(String type) { this.type = type; } public String getContentType() { if (type == null) return "application/octet-stream"; else return type; } public InputStream getInputStream() throws IOException { return new ByteArrayInputStream(data); } public String getName() { return "ByteArrayDataSource"; } public OutputStream getOutputStream() throws IOException { throw new IOException("Not Supported"); } @Override public PrintWriter getLogWriter() throws SQLException { // TODO Auto-generated method stub return null; } @Override public int getLoginTimeout() throws SQLException { // TODO Auto-generated method stub return 0; } @Override public void setLogWriter(PrintWriter arg0) throws SQLException { // TODO Auto-generated method stub } @Override public void setLoginTimeout(int arg0) throws SQLException { // TODO Auto-generated method stub } @Override public boolean isWrapperFor(Class&lt;?&gt; arg0) throws SQLException { // TODO Auto-generated method stub return false; } @Override public &lt;T&gt; T unwrap(Class&lt;T&gt; arg0) throws SQLException { // TODO Auto-generated method stub return null; } @Override public Connection getConnection() throws SQLException { // TODO Auto-generated method stub return null; } @Override public Connection getConnection(String arg0, String arg1) throws SQLException { // TODO Auto-generated method stub return null; } } These are the logcat errors: 01-22 19:54:23.027: E/AndroidRuntime(849): FATAL EXCEPTION: main 01-22 19:54:23.027: E/AndroidRuntime(849): java.lang.NoClassDefFoundError: javax.mail.Session 01-22 19:54:23.027: E/AndroidRuntime(849): at com.example.lomenttech.EmailManager.getInboxMails(EmailManager.java:73) 01-22 19:54:23.027: E/AndroidRuntime(849): at com.example.lomenttech.Inbox.onCreate(Inbox.java:37) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.Activity.performCreate(Activity.java:5104) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.access$600(ActivityThread.java:141) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.os.Handler.dispatchMessage(Handler.java:99) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.os.Looper.loop(Looper.java:137) 01-22 19:54:23.027: E/AndroidRuntime(849): at android.app.ActivityThread.main(ActivityThread.java:5039) 01-22 19:54:23.027: E/AndroidRuntime(849): at java.lang.reflect.Method.invokeNative(Native Method) 01-22 19:54:23.027: E/AndroidRuntime(849): at java.lang.reflect.Method.invoke(Method.java:511) 01-22 19:54:23.027: E/AndroidRuntime(849): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 01-22 19:54:23.027: E/AndroidRuntime(849): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 01-22 19:54:23.027: E/AndroidRuntime(849): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. COPlease attach your LogCat output. It is not possible to fix your errors without that.
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      1. USSwayam
    2. COIt would be easy for us after see logcat..
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      1. USAjay S
 

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