title: Can I delete dot(.) in the soft keyboard?
body: <p>there is editText field in my app, and get 8 digit Numbers for get birthDay.
  So now it work. but there is .- button in app.  </p>
  
  <pre><code>&lt;com.rengwuxian.materialedittext.MaterialEditText
          android:id="@+id/edit_birth"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_below="@+id/edit_name"
          android:layout_margin="18dp"
          android:fontFamily="@font/notokr_regular"
          android:hint="@string/text_birthday"
          android:inputType="number"
          android:textSize="14sp"
          app:met_errorColor="@color/colorPrimary"
          app:met_floatingLabel="normal"
          app:met_floatingLabelPadding="13dp"
          app:met_floatingLabelTextColor="@color/color_000000"
          app:met_floatingLabelTextSize="14sp"
          app:met_textColor="@color/color_555555"
          app:met_underlineColor="@color/color_e0e0e0" /&gt;
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/B9MLo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/B9MLo.png" alt="when keyboard show like this!"></a></p>
  
  <p>so how can I make not show '.-' button? I want to show only number buttons.
  is this possible?</p>