title: Android Keyboard does not show when pressing input field in unity?
body: <p>I have a simple scene in unity which has an input field in it. When I run my scene in my Android Device and press the input field, the android keyboard does not show. I am connecting via USB to my laptop using Unity Remote 5 app. </p>
  
  <p>Here is my code:</p>
  
  <pre><code>using System.Collections;
  using System.Collections.Generic;
  using UnityEngine;
  using UnityEngine.UI;
  using TMPro;
  
  public class InputNumber : MonoBehaviour {
  
      public InputField input;
  
      // Use this for initialization
      void Start () {
          if (input)
          {
              TouchScreenKeyboard.Open("", TouchScreenKeyboardType.Default, false, false, true);
          }
          input.keyboardType = TouchScreenKeyboardType.NumberPad;
      }
  
      // Update is called once per frame
      void Update () {
  
      }
  }
  </code></pre>