i have used digits and after using it ime option is changed from actoin next to action next(which is used for multiline). Here is my code:
<EditText
android:id="@+id/acpr_etLiftNo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:textSize="@dimen/tvsize"
android:paddingTop="@dimen/default_padding"
android:paddingRight="@dimen/default_padding"
android:textColor="@color/black"
android:longClickable="false"
android:maxLines="1"
android:inputType="text"
android:digits="@string/en_validation"
android:imeOptions="actionNext"
android:hint="@string/lift_no"
>
<requestFocus/>
</EditText>