how to display my hidden submit button below softkeyboard android

I have two EditTexts and one subm开发者_运维百科it button but when I enter text in the EditText then my submit button hides below the soft keyboard so how to make it above keyboard when the keyboard appears, i.e., The Button should be visible. I have set a background image in the layout and stuck only two TextBoxs and a button on the background image. My xml is below.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_gravity="center"
    android:background="@drawable/user_id_bg2" >
    <EditText 
        android:inputType="textNoSuggestions"

        android:text="" 
        android:id="@+id/editText1" 
        android:singleLine="true"
        android:hint="Enter Your User Id"
        android:layout_marginTop="85dip"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"   
        android:layout_height="40dip"
        android:layout_width="fill_parent">
    </EditText>
    <EditText 
        android:inputType="text|textNoSuggestions"
        android:password="true"
        android:singleLine="true"
        android:hint="Enter Your Password"
        android:layout_marginTop="125dip"
        android:layout_marginLeft="20dip"
        android:layout_marginRight="20dip"  
        android:id="@+id/editText2" 
        android:imeOptions="actionDone"
        android:layout_height="40dip"
        android:layout_width="fill_parent"/>
    <ImageView 
        android:id="@+id/buttonimg"
        android:layout_marginTop="200dip"
        android:layout_marginLeft="237dip"
        android:layout_width="wrap_content"
        android:layout_height="40dip"
        android:background="@drawable/go_button"
    />
</RelativeLayout>