Android中Gmail的操作意图？

Question

I am creating an app in which user can share "something" by clicking on a share button. The steps to share "something" are:

1. On clicking the share button the contact list should open
2. By selecting a contact (with valid a email address) the data should be sent directly to the selected contact from the sender's default email address(Gmail) without popping up a window for selecting an email client like "Gmail", "Dropbox" etc..

I managed to get the email id of contact with the help of http://mobile.tutsplus.com/tutorials/android/android-essentials-using-the-contact-picker/ but after selecting a contact I get a pop up for selecting an email client like "Gmail", "Dropbox" etc..

here is my code so far

       if( email.length() != 0 )
       {
            Intent sharingIntent = new Intent(
                   android.content.Intent.ACTION_SEND );
            sharingIntent.setType("message/rfc822");
            String shareBody =
                            "Hey buddy listen to this station it is awesome\n"
                            + mNowPlayingSong.mAudioUrl;
            sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT,
                           "I liked this song" );
           sharingIntent.putExtra(                                                     
                          android.content.Intent.EXTRA_TEXT, shareBody );
           String emailAddressList[] = {email};
           sharingIntent.putExtra(Intent.EXTRA_EMAIL, emailAddressList );
           startActivity( sharingIntent );

Answer 1

You cannot send email silently with the default application. You can only create an intent that will call an activity and that will fill in all the fields.

Other possibility is to embed your own email client into yours application. In this case, if a user provides credentials then you'll have a possibility to send a email silently. To implement the second options check this: Sending Email in Android using JavaMail API without using the default/built-in app