CODEWITHSUNDEEP
android
Walid Bezzaoui
Walid Bezzaoui

Reputation: 49

can't send emails on android 3.2

I tried this link to send an email via Android 3.2, but I got this error : 

01-11 13:48:59.818: E/MailApp(29958): Could not send email
01-11 13:48:59.818: E/MailApp(29958): android.os.NetworkOnMainThreadException
01-11 13:48:59.818: E/MailApp(29958): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1084)
01-11 13:48:59.818: E/MailApp(29958): at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
01-11 13:48:59.818: E/MailApp(29958): at java.net.InetAddress.getLocalHost(InetAddress.java:371)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.internet.InternetAddress.getLocalAddress(InternetAddress.java:517)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.internet.UniqueValue.getUniqueMessageIDValue(UniqueValue.java:99)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.internet.MimeMessage.updateMessageID(MimeMessage.java:2054)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.internet.MimeMessage.updateHeaders(MimeMessage.java:2076)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.internet.MimeMessage.saveChanges(MimeMessage.java:2042)
01-11 13:48:59.818: E/MailApp(29958): at javax.mail.Transport.send(Transport.java:117)
01-11 13:48:59.818: E/MailApp(29958): at com.fahadalawam.kwtresturant.Mail.send(Mail.java:125)
01-11 13:48:59.818: E/MailApp(29958): at com.fahadalawam.kwtresturant.Add$1.onClick(Add.java:58)
01-11 13:48:59.818: E/MailApp(29958): at android.view.View.performClick(View.java:3480)
01-11 13:48:59.818: E/MailApp(29958): at android.view.View$PerformClick.run(View.java:13983)
01-11 13:48:59.818: E/MailApp(29958): at android.os.Handler.handleCallback(Handler.java:605)
01-11 13:48:59.818: E/MailApp(29958): at android.os.Handler.dispatchMessage(Handler.java:92)
01-11 13:48:59.818: E/MailApp(29958): at android.os.Looper.loop(Looper.java:137)
01-11 13:48:59.818: E/MailApp(29958): at android.app.ActivityThread.main(ActivityThread.java:4340)
01-11 13:48:59.818: E/MailApp(29958): at java.lang.reflect.Method.invokeNative(Native Method)
01-11 13:48:59.818: E/MailApp(29958): at java.lang.reflect.Method.invoke(Method.java:511)
01-11 13:48:59.818: E/MailApp(29958): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-11 13:48:59.818: E/MailApp(29958): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-11 13:48:59.818: E/MailApp(29958): at dalvik.system.NativeStart.main(Native Method)

Upvotes: 0

Views: 439

Answers (2)

Akhil
Akhil

Reputation: 14038

You are trying to do a network related operation on main thread!! Android 3.0 onwards don't allow this at all as a step towards making better behaved and responsive applications( The older versions just gave a warning) . See this line in your stackTrace 

android.os.NetworkOnMainThreadException

So, you need to push the email sending part off the main thread. In the example you are following, there is no need for an AsyncTask, a simple Thread will do.

Runnable r = new Runnable() {

        @Override
        public void run() {
              // send email 
                    Transport.send(msg); 

        }
    };
        Thread t = new Thread(r);
        t.start();

Upvotes: 1

Graham Borland
Graham Borland

Reputation: 60681

 android.os.NetworkOnMainThreadException

There's your answer right there. You're trying to access the network in the main UI thread. This is bad! See this article for guidance on how to avoid it.

The article you linked to is setting a bad example by calling the send() method in a click handler. You may want to contact the author of that page to point out the problem.

Upvotes: 1

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