garden_client/Assets/Script/Extension/ExtensionComponent.cs

using UnityEngine;
using UnityEngine.UI;

using System.Collections;

public static class ExtensionComponent
{
    public static void SetActive(this Component comp, bool active)
    {
        if (comp == null)
        {
            return;
        }

        comp.gameObject.SetActive(active);
    }

    public static Sprite GetSprite(this Component comp)
    {
        return comp.GetComponent<Image>().sprite;
    }

    public static T AddComponent<T>(this Component comp) where T : Component
    {
        return comp.transform.gameObject.AddComponent<T>();
    }
}