How to prevent touch to propagate through new UI Button?

Questions & Answers
1

Hi All,

I have couple of buttons on the screen and unfortunately when I press one of these buttons the touch propagates through to the screen below which then gets handled by a separate Update() function used to handle touches off the UI buttons.

I’ve tried to utilize the new Eventsystem, but so far with now success. Here’s my code:

private bool WasAButton()
{
	UnityEngine.EventSystems.EventSystem ct
		= UnityEngine.EventSystems.EventSystem.current;
	
	if (! ct.IsPointerOverGameObject() ) return false;
	if (! ct.currentSelectedGameObject ) return false;
	if (ct.currentSelectedGameObject.GetComponent<Button>() == null )
		return false;
	
	return true;
}


void Update () 
{
	if (Input.touchCount > 0)
	{
		if (!WasAButton())
		{
			Input.ResetInputAxes();
			DoSomething();
		}
	};	
}

DoSomething() gets called even if the touch is on top of a UI button. Buttons work well, but I’d like to make sure that DoSomething() does not get called when pressing a UI button.

2

… and here is the answer that helped me: http://forum.unity3d.com/threads/touch-press-pass-through-all-ui-elements.272892/#post-1818009