[Component]EditText

<EditText
    android:id="@+id/Edit1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:numeric="integer"
    android:text=""
    android:gravity="center_vertical|center_horizontal"
/>

Ref:
http://developer.android.com/reference/android/widget/EditText.html