public void NoticationEmail() {

    SenderEmail = "xxx@gmail.com";
    Subject = "Announcement";
    Message = "Test Email";

    Intent email = new Intent(Intent.ACTION_SEND);
    email.putExtra(Intent.EXTRA_EMAIL, new String[]{SenderEmail});
    email.putExtra(Intent.EXTRA_SUBJECT, Subject);
    email.putExtra(Intent.EXTRA_TEXT, Message);
    email.setType("message/rfc822");
    startActivity(Intent.createChooser(email, "Choose Email client :"));
    Intent pindah = new Intent(verification.this, AdminActivity.class);
    startActivity(pindah);
}