UI Button onClick Events have no "animation.play()"

Question

Hi there,

I have gameobject A with a button-component and gameobject B with an animation-component (legacy since it's cheaper). When I use the buttons "On Click" in the inspector - not in the script, in other words: drag'n'drop the gameobject B into and look at the dropbown-menu, choose the "animation"-component, I can't seem to find the "play"-function. I could use the "blend"-function but I think this costs more than just play without blend. alt text

Did I miss something or do I have to make it with an extra script?

Answer 1

Answer by rknapp · Sep 07, 2018 at 04:35 PM

I believe it is because the Play method on the Animation has a return type of bool, and is therefor not an Action<>. I've tested this by creating other components, and only the void-returning methods show up in the OnClick handler. Here's a little helper component I made to get around it.

 [RequireComponent(typeof(Animation))]
 public class AnimationTrigger : MonoBehaviour
 {
     private Animation _animation;
 
     private void Awake()
     {
         _animation = GetComponent<Animation>();
     }
 
     public void Play()
     {
         _animation?.Play();
     }
 }

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UI Button onClick Events have no "animation.play()"

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