powerfun-unity/Assets/Scripts/Utils/Toast.cs

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Toast : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        if (toast!=null) 
        {
            //toast.SetActive(false);
            //txt = toast.transform.Find("Toast").GetComponent<Text>();
        }
        //if (txt != null) 
        //{
        //    txt.enabled = false;
        //}
    }

    // Update is called once per frame
    void Update()
    {
        
    }
    [SerializeField] GameObject toast;
    [SerializeField] Text txt;

    public void showToast(string json)
    {
        JObject JO = (JObject)JsonConvert.DeserializeObject(json);
        gameObject.SetActive(true);
        StartCoroutine(showToastCOR(JO.Value<string>("text"), JO.Value<int>("duration")));
    }

    private IEnumerator showToastCOR(string text,
        int duration)
    {
        
        gameObject.SetActive(true);
        txt.text = text;
        //Fade in
        yield return fadeInAndOut(txt, true, 0.5f);

        //Wait for the duration
        float counter = 0;
        while (counter < duration)
        {
            counter += Time.deltaTime;
            yield return null;
        }

        //Fade out
        yield return fadeInAndOut(txt, false, 0.5f);

        gameObject.SetActive(false);
    }

    IEnumerator fadeInAndOut(Text targetText, bool fadeIn, float duration)
    {
        //Set Values depending on if fadeIn or fadeOut
        float a, b;
        if (fadeIn)
        {
            a = 0f;
            b = 1f;
        }
        else
        {
            a = 1f;
            b = 0f;
        }

        float counter = 0f;

        while (counter < duration)
        {
            counter += Time.deltaTime;
            float alpha = Mathf.Lerp(a, b, counter / duration);
            transform.GetComponent<CanvasGroup>().alpha = alpha;
            yield return null;
        }
    }
}