how to change default virtual keyboard of device.

Question

I have a task to send an email by using intent without using xml layout, it works fine but here my issue is to change the keypad appears with enter option by default but here i need it to replace done option. How can i get it?

Here my code:

 Intent sendIntent = new Intent(Intent.ACTION_SEND);
            sendIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            sendIntent.putExtra(Intent.EXTRA_SUBJECT, "Brown University: "
                    + gTitle_val);
            sendIntent.putExtra(Intent.EXTRA_TEXT, Html
                    .fromHtml("<p><a href=\"" + gLink_web_url_val + "\">"
                            + gTitle_val + "</a></p><br><p>" + gContent_val
                            + "</p>"));
            sendIntent.setType("vnd.android.cursor.dir/email");
            startActivity(Intent.createChooser(sendIntent, "Email:"
                    + gTitle_val));