InterestSticker.cs

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

[Script(ScriptRole.View)]
public class InterestSticker : Sticker
{
    public Sprite Icon;

    Image _icon;
    float _destroyDelay = 1;
    Animator _animator;
    int _isVisibleAnimParam = Animator.StringToHash("IsVisible");

    protected override void Awake()
    {
        base.Awake();
    }

    protected override void OnSpawn()
    {
        base.OnSpawn();

        _icon = _guiObject.transform.FindChild("icon").GetComponent<Image>();
        _icon.sprite = Icon;
        _icon.SetNativeSize();
        _animator = _guiObject.GetComponent<Animator>();
    }

    protected override void Update()
    {
        base.Update();

        _animator.SetBool(_isVisibleAnimParam, IsVisible);
        _icon.transform.rotation = Quaternion.identity;
    }

    protected override void OnDestroy()
    {
        base.OnDestroy();

        // Check if the GUI Object is null before destroying it.
        // In the case of Scene unloading, the GUI Object can actually be destroyed before it's owner.
        if (_guiObject != null)
        {
            _animator.SetBool(_isVisibleAnimParam, false);
            Destroy(_guiObject, _destroyDelay);
        }
    }
}