Input type phone not working inside custom dialog

[parthitechnotion]

Place below code inside custom dialog layout and try to enter any number it will not allow to enter any number from 0 - 9 range

<com.rengwuxian.materialedittext.MaterialEditText android:id="@+id/edtContactPersonMobile" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:hint="@string/contact_person_mobile" android:imeOptions="actionNext" android:inputType="phone" android:maxLength="13" android:paddingLeft="10dp" android:paddingRight="10dp" android:textSize="16sp" app:met_baseColor="@android:color/black" app:met_floatingLabel="highlight" app:met_floatingLabelText="@string/contact_person_mobile" app:met_floatingLabelTextSize="10sp" app:met_hideUnderline="false" app:met_primaryColor="?colorAccent" />