using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;
using UnityEngine.UI;
[RequireComponent(typeof(Image))]
public class ImageLoader : MonoBehaviour
{
[SerializeField]
private string _relativePath;
private Texture2D _texture;
private Image _img;
public string RelativePath
{
get { return _relativePath; }
set {
_relativePath = value;
ReLoadImage();
}
}
private void Awake()
{
_img = GetComponent<Image>();
}
void Start()
{
ReLoadImage();
}
public void ReLoadImage()
{
if (!string.IsNullOrEmpty(_relativePath))
{
var data = ReadPNG(_relativePath);
if (data != null)
{
_texture = new Texture2D(1, 1);
_texture.LoadImage(data);
_img.sprite = Sprite.Create(_texture, new Rect(0, 0, _texture.width, _texture.height), new Vector2(0, 0));
return;
}
}
_img.sprite = null;
}
private byte[] ReadPNG(string path)
{
string fullPath = path;
if (!string.IsNullOrEmpty(fullPath))
{
FileStream fileStream = new FileStream(fullPath, FileMode.Open, System.IO.FileAccess.Read);
fileStream.Seek(0, SeekOrigin.Begin);
byte[] binary = new byte[fileStream.Length];
fileStream.Read(binary, 0, (int)fileStream.Length);
fileStream.Close();
fileStream.Dispose();
fileStream = null;
return binary;
}
return null;
}
}
