Приложение электронной почты не работает на реальном устройстве

Question

У меня есть простая андроидская кнопка, которая отправляет автоматическую электронную почту при нажатии кнопки. Приложение отлично работает в эмуляторе, но на реальном устройстве (samsung gt-n7000) приложение не будет работать. Устройство подключено только к Wi-Fi.

вот коды:

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.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 GMailSender 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 GMailSender() { 
     _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 GMailSender(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 javax.mail.PasswordAuthentication getPasswordAuthentication() { 
     return new javax.mail.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_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_subject() { 
     return _subject; 
    } 

    public void set_subject(String _subject) { 
     this._subject = _subject; 
    } 

    } 

MainClass:

import android.app.Activity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.widget.Toast; 

public class MainActivity extends Activity { 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
    } 

    public void sending(View v) { 
      GMailSender mailsender = new GMailSender("example@gmail.com", "password"); 

      String[] toArr = { "mussa2kasssim@hotmail.com" }; 
      mailsender.set_to(toArr); 
      mailsender.set_from("example@gmail.com"); 
      mailsender.set_subject("This is an email sent using my Mail JavaMail wrapper from an Android device."); 
      mailsender.setBody("Hello World!"); 
      // mailsender.send(); 

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

       if (mailsender.send()) { 
        Toast.makeText(MainActivity.this, 
          "Email was sent successfully.", 
          Toast.LENGTH_LONG).show(); 
       } else { 
        Toast.makeText(MainActivity.this, "Email was not sent.", 
          Toast.LENGTH_LONG).show(); 
       } 
      } catch (Exception e) { 

       Log.e("MailApp", "Could not send email", e); 
      } 
     } 
    } 

NB: "example@gmail.com" и "пароль" заменяются подлинными ценностями.

Пожалуйста, помогите. Спасибо

Manifest:

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.nikhil.emailing" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="8" 
     android:targetSdkVersion="15" /> 

    <uses-permission android:name="android.permission.INTERNET" /> 
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name="com.example.emailing.MainActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
     <activity 
      android:name="com.example.emailing.EmailActivity" 
      android:label="@string/title_activity_email" > 
     </activity> 
    </application> 

</manifest> 

XML:

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 

    <Button 
     android:id="@+id/button1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerHorizontal="true" 
     android:layout_centerVertical="true" 
     android:onClick="sending" 
     android:text="Email" /> 

</RelativeLayout> 

Журнал ошибок:

11-07 12:43:07.616: ERROR/lights(1845): write_int: path/sys/devices/virtual/sec/sec_touchkey/brightness, value 1 
11-07 12:43:07.841: ERROR/MailApp(24559): Could not send email 
11-07 12:43:07.841: ERROR/MailApp(24559): android.os.NetworkOnMainThreadException 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.net.InetAddress.lookupHostByName(InetAddress.java:391) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.net.InetAddress.getLocalHost(InetAddress.java:371) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.internet.InternetAddress.getLocalAddress(InternetAddress.java:517) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.internet.UniqueValue.getUniqueMessageIDValue(UniqueValue.java:99) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.internet.MimeMessage.updateMessageID(MimeMessage.java:2054) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2076) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2042) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at javax.mail.Transport.send(Transport.java:117) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at com.nikhil.emailing.GMailSender.send(GMailSender.java:105) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at com.nikhil.emailing.MainActivity.sending(MainActivity.java:31) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.lang.reflect.Method.invokeNative(Native Method) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.lang.reflect.Method.invoke(Method.java:511) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.view.View$1.onClick(View.java:3095) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.view.View.performClick(View.java:3627) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.view.View$PerformClick.run(View.java:14329) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.os.Handler.handleCallback(Handler.java:605) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.os.Handler.dispatchMessage(Handler.java:92) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.os.Looper.loop(Looper.java:137) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at android.app.ActivityThread.main(ActivityThread.java:4511) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.lang.reflect.Method.invokeNative(Native Method) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at java.lang.reflect.Method.invoke(Method.java:511) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747) 
11-07 12:43:07.841: ERROR/MailApp(24559):  at dalvik.system.NativeStart.main(Native Method) 
11-07 12:43:08.786: ERROR/DataRouter(1690): usb connection is true 
11-07 12:43:08.786: ERROR/DataRouter(1690): DSR is ON. Don't send DTR ON. 
11-07 12:43:09.121: ERROR/lights(1845): write_int: path /sys/devices/virtual/sec/sec_touchkey/brightness, value 2 
11-07 12:43:09.741: ERROR/AlarmManagerService(1845): android_server_AlarmManagerService_set to type=1, 1383830133.779000000 
11-07 12:43:09.896: ERROR/AlarmManagerService(1845): android_server_AlarmManagerService_set to type=1, 1383828192.898000000 
11-07 12:43:10.791: ERROR/DataRouter(1690): usb connection is true 
11-07 12:43:10.791: ERROR/DataRouter(1690): DSR is ON. Don't send DTR ON. 
11-07 12:43:12.791: ERROR/DataRouter(1690): usb connection is true 
11-07 12:43:12.791: ERROR/DataRouter(1690): DSR is ON. Don't send DTR ON. 
11-07 12:43:12.896: ERROR/AlarmManagerService(1845): android_server_AlarmManagerService_set to type=1, 1383830133.779000000 
11-07 12:43:13.036: ERROR/AlarmManagerService(1845): android_server_AlarmManagerService_set to type=1, 1383828196.040000000 

Answer 1

Исключение говорит android.os.NetworkOnMainThreadException

Это м eans network related tasks не должны выполняться в основном потоке (специально для потока пользовательского интерфейса). Запустите его на фоне потока, и он будет работать.

Answer 2

Связанная задача должна выполняться в AsyncTask.

Answer 3

Это связано с некоторыми ThreadPolicy, я прочитал его из другого сообщения. Он в основном блокирует соединение, которое инициирует приложение. Поэтому, чтобы отключить эту политику, мне пришлось поместить этот фрагмент кода в onCreate() из действия, используя соединение.

Код:

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

И это работает, как ожидалось :))