awesome-uiwidgets/AwesomeUIWidgets/Assets/Scripts/ChatPanelManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChatPanelManager : MonoBehaviour
{

    public RectTransform transformPosition;
    public RectTransform transformedPosition;
    public RectTransform canvasPosition;
    public RectTransform imagePosition;
    public Vector2 standerdImageSize;
    public GameObject panel;
    public GameObject dateAndTimePicker;
    private static bool isLerp = false;
    private static bool isOpenPanel = false;
    public float speed = 5.0f;
    private static bool isFirstTime = true;
    private bool wait = false;
    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Tab))
        {
            Switch();
        }

        if (isLerp)
        {
            
            if (isOpenPanel)
            {
                canvasPosition.anchoredPosition3D = Vector3.Lerp(canvasPosition.anchoredPosition3D,
                    transformedPosition.anchoredPosition3D, speed * Time.deltaTime);
                canvasPosition.localRotation = Quaternion.Lerp(canvasPosition.localRotation,
                    transformedPosition.localRotation, speed * Time.deltaTime);
                canvasPosition.localScale = Vector3.Lerp(canvasPosition.localScale, transformedPosition.localScale,
                    speed * Time.deltaTime);
                if(Vector3.Distance(canvasPosition.anchoredPosition3D,transformedPosition.anchoredPosition3D) < 0.1f)
                {
                    isLerp = false;
                    canvasPosition.GetComponent<Canvas>().renderMode = RenderMode.ScreenSpaceOverlay;
                    //canvasPosition.GetComponent<Canvas>().worldCamera = null;
                    imagePosition.sizeDelta = standerdImageSize;
                    panel.SetActive(false);
                    dateAndTimePicker.SetActive(false);
                }
            }
            else
            {
                if (isFirstTime)
                {
                    canvasPosition.GetComponent<Canvas>().renderMode = RenderMode.WorldSpace;
                    canvasPosition.GetComponent<Canvas>().worldCamera = Camera.main;
                    canvasPosition.anchoredPosition3D = transformedPosition.anchoredPosition3D;
                    canvasPosition.localRotation = transformedPosition.localRotation;
                    canvasPosition.localScale = transformedPosition.localScale;
                    panel.SetActive(true);
                    dateAndTimePicker.SetActive(true);
                    isFirstTime = false;
                    wait = true;
                    StartCoroutine(SkipForAFrame());
                }
                
                if (!wait)
                {
                    canvasPosition.anchoredPosition3D = Vector3.Lerp(canvasPosition.anchoredPosition3D,
                        transformPosition.anchoredPosition3D, speed * Time.deltaTime);
                    canvasPosition.localRotation = Quaternion.Lerp(canvasPosition.localRotation,
                        transformPosition.localRotation, speed * Time.deltaTime);
                    canvasPosition.localScale = Vector3.Lerp(canvasPosition.localScale, transformPosition.localScale,
                        speed * Time.deltaTime);
                    if(Vector3.Distance(canvasPosition.anchoredPosition3D, transformedPosition.anchoredPosition3D)<0.1f)
                    {
                        isLerp = false;
                    }
                }
                
                
               

            }
        }
    }

    IEnumerator SkipForAFrame()
    {
        yield return new WaitForSeconds(0.1f);
        wait = false;
    }

    public static void Switch()
    {
        isLerp = true;
        isOpenPanel = !isOpenPanel;
        isFirstTime = true;
    }
    

}