koobas.hobune.stream
Button onClick is called when added to the Listener
I try in C# Script too add a method to a Button for the onClick Event. I do this in OnMouseDown of a script that is connected to my gameobject like this:
Button FeedButton = GameObject.Find("/Canvas/MyButton").GetComponent<Button>();
FeedButton.onClick.RemoveAllListeners();
FeedButton.onClick.AddListener(() => { ClickedButton(); });
So far it works but there is one probem: ClickedButton() is called in the moment when I add it to the listener even though the button wasn't clicked that moment...How can this happen?
The game object you are talking about is the one the button is in? If so ClickedButton is called because the event is sent on mouse released.
You should either : - change the moment the callback is added. - invalidate the first call using a boolean.
I think the 1st proposition is the right one. I don't know what you are tring to do but this seems ill-designed.
I found a solution by now. The problem was that when I click on my gameobject I move the canvas into the cameraview in the onmousedown method. when I release the mouse button the canvas was already displayed and the mouse click event was sent to the button. I think this is a bug in unity. I made a workaround that I wait a second before I the AddListener
void OnMouseDown()
{
MovingCanvasInView();
StartCoroutine(AddListener());
}
IEnumerator AddListener()
{
yield return new WaitForSeconds(1);
FeedButton.onClick.AddListener(FeedNow);
yield break;
}
