Android EditText align right no work properly

This is my code:

<EditText
        android:layout_width="@dimen/edittext_width"
        android:layout_height="@dimen/edittext_height"
        android:gravity="right|center_vertical"/>

I want the text go from right, so I add this code: android:gravity="right".

The problem is that the cursor always remain at right. I Attaching screen shots:

With gravity right -

Without gravity right -

Actually I want it will be like the first image and the last image.

Any help?