Camera not rotating when swiping on screen

0
I am developing a game with Unity using 3D Game Kit. I am having issues with the camera. When I placed a canvas to add a joystick in order to move the player, the camera stopped responding to swipes on the screen, it only points to a specific direction. I am using m_Camera.Set() to set directions on swipe but it is not working. Using mouse m_Camera.Set(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical")); for desktop works fine, but I want to make this work for mobile devices too.

This is how I am trying:

Code (CSharp):

1.  
2. if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Moved)
3. {
4.        Vector2 touchDeltaPosition = Input.GetTouch(0).deltaPosition;
5.        m_Camera.Set(touchDeltaPosition.x, touchDeltaPosition.y);
6.        Debug.Log(m_Camera.x);
7.  
8.    }

The log displays different values but camera does not move.