title: Xamarin form app: Keyboard type telephone allow to input negative values in Android but not in IOS
body: <p>I have made an application in Xamarin From. Design the UI in xaml. My issue is when i define the Keyboard telephone in entry field it allow to input negative value in android app but in IOS it not allowed.</p>
  <pre><code>&lt;StackLayout Spacing=&quot;20&quot; Padding=&quot;0&quot; Orientation=&quot;Horizontal&quot; HorizontalOptions=&quot;FillAndExpand&quot;&gt;
              &lt;Entry Text=&quot;{Binding Item.TextProvider2017}&quot; HorizontalTextAlignment=&quot;End&quot; FontSize=&quot;Small&quot; WidthRequest=&quot;140&quot; MinimumWidthRequest=&quot;60&quot; Placeholder=&quot;For 2017&quot; Keyboard=&quot;Telephone&quot; Completed=&quot;NoOfProvider_Completed&quot; Unfocused=&quot;NoOfProvider_Unfocused&quot;/&gt;
              &lt;Entry Text=&quot;{Binding Item.TextProvider2018}&quot; HorizontalTextAlignment=&quot;End&quot; FontSize=&quot;Small&quot; WidthRequest=&quot;140&quot; MinimumWidthRequest=&quot;60&quot; Placeholder=&quot;For 2018&quot; Keyboard=&quot;Telephone&quot;/&gt;
              &lt;Entry Text=&quot;{Binding Item.TextProvider2019}&quot; HorizontalTextAlignment=&quot;End&quot; FontSize=&quot;Small&quot; WidthRequest=&quot;140&quot; MinimumWidthRequest=&quot;60&quot; Placeholder=&quot;For 2019&quot; Keyboard=&quot;Telephone&quot;/&gt;
              &lt;Entry Text=&quot;{Binding Item.TextProvider2020}&quot; HorizontalTextAlignment=&quot;End&quot; FontSize=&quot;Small&quot; WidthRequest=&quot;140&quot; MinimumWidthRequest=&quot;60&quot; Placeholder=&quot;For 2020&quot; Keyboard=&quot;Telephone&quot;/&gt;
          &lt;/StackLayout&gt;
  </code></pre>
  <p>Keypad in Android:
  <a href="https://i.stack.imgur.com/mluwj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mluwj.png" alt="enter image description here" /></a></p>
  <p>Keypad in IOS:
  <a href="https://i.stack.imgur.com/mBzou.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mBzou.png" alt="enter image description here" /></a></p>
  <p>In Android keypad have negative sign but IOS don't have. IS there any way to make both same.</p>