AIKKEY_WPFWin7/AIK.Common/GlobalImageCache.cs

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media.Imaging;

namespace AIK.Common
{
    public static class GlobalImageCache
    {
        private static readonly ConcurrentDictionary<string, BitmapImage> _imgListKey = new ConcurrentDictionary<string, BitmapImage>();

        public static BitmapImage GetOrAdd(string url, Func<string, BitmapImage> valueFactory)
        {
            return _imgListKey.GetOrAdd(url, valueFactory);
        }

        public static bool TryGetValue(string key, out BitmapImage value)
        {
            return _imgListKey.TryGetValue(key, out value);
        }
    }
}