All contacts Attatched to .vcf file And send to Mail

 Here is code get all contacts of your mobile and store to file and that file send to mail. see here http://stackoverflow.com/questions/12798001/android-how-to-send-multiple-contacts-are-attached-in-single-vcf-file-and-send

 button = (Button) findViewById(R.id.send);          
     button.setOnClickListener(new OnClickListener() {          
        public void onClick(View v) {        
            data();
        }
    });  
    getVcardString();           
}       

 public static void getVcardString() {   

    String path = null;     
    String vfile = null;

     vfile = "Contacts.vcf";           
    Cursor phones = mContext.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                    null, null, null);

    phones.moveToFirst();
    Log.i("Number of contacts", "cursorCount" +phones.getCount());  
    for(int i =0;i<phones.getCount();i++)   {       

         String lookupKey = phones.getString(phones.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
         Log.i("lookupKey", " " +lookupKey);
         Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);
         AssetFileDescriptor fd;

         try  {
             fd = mContext.getContentResolver().openAssetFileDescriptor(uri, "r");
             FileInputStream fis = fd.createInputStream();
             byte[] buf = new byte[(int) fd.getDeclaredLength()];
             fis.read(buf);
             String VCard = new String(buf);          

             path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile;
             FileOutputStream mFileOutputStream = new FileOutputStream(path, true);
             mFileOutputStream.write(VCard.toString().getBytes());    

             phones.moveToNext();               

             filevcf = new File(path);
             Log.i("file", "file" +filevcf);

         }catch(Exception e1) {
             e1.printStackTrace();  
         }
    }       
    Log.i("TAG", "No Contacts in Your Phone");          
}

protected void data() {             
    File filelocation = filevcf ;     
    Intent sharingIntent = new Intent(Intent.ACTION_SEND);
    sharingIntent.setType("vnd.android.cursor.dir/email");      
    sharingIntent.setType("application/x-vcard");       
    sharingIntent.putExtra(Intent.EXTRA_EMAIL, "mail@gmail.com" );        
    sharingIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+filelocation.getAbsolutePath()));
    startActivity(Intent.createChooser(sharingIntent, "Send email"));            
 }