Question by ScotchBunny · Mar 31, 2017 at 12:24 PM · android input touch radius

Touch radius always returns zero on Android

I am trying to use Touch.radius (as well as radiusVariance) on my Galaxy S7 and I only get zero:

https://docs.unity3d.com/ScriptReference/Touch-radius.html

I get numbers with the Touch Radius Test app:

https://play.google.com/store/apps/details?id=com.bzgames.touchgraph

Am I missing a build setting or is it a device compatibility issue?

The code is below and it reports positions X and Y just fine.

 using UnityEngine;
 using System.Collections;
 
 public class TouchTest : MonoBehaviour {
 
     Touch currentTouch;
 
     int count = 0;
     float radius = 0;
     float variance = 0;
     float min = 0;
     float max = 0;
     float pressure = 0;
     float x = 0;
     float y = 0;
 
     // Use this for initialization
     void Start () {
         Screen.orientation = ScreenOrientation.Portrait;
     }
     
     // Update is called once per frame
     void Update () {
         if (Input.touchCount > 0) {
             
             count = Input.touchCount;
 
             currentTouch = Input.GetTouch (0);
 
             radius = currentTouch.radius;
             variance = currentTouch.radiusVariance;
 
             min = radius - variance;
             max = radius + variance;
 
             pressure = currentTouch.pressure;
 
             x = currentTouch.position.x;
             y = currentTouch.position.y;
 
         } else {
             
             count = 0;
         }
     }
 
     void OnGUI () {
         GUI.Label (new Rect(0,0,100,100), "Radius: " + radius);
         GUI.Label (new Rect(0,50,100,100), "Variance: " + variance);
         GUI.Label (new Rect(0,100,100,100), "Min: " + min);
         GUI.Label (new Rect(0,150,100,100), "Max: " + max);
         GUI.Label (new Rect(0,200,100,100), "Pressure: " + pressure);
         GUI.Label (new Rect(0,250,100,100), "Touches: " + count);
         GUI.Label (new Rect(0,300,100,100), "X: " + x);
         GUI.Label (new Rect(0,350,100,100), "Y: " + y);
     }
 }

EDIT: I just confirmed it's the same case with my Galaxy Tab S tablet :/

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