C# (CSharp) FileSystems.OfType示例

示例#1

文件： FileSystemManager.cs 项目： xamarin-forks/Praeclarum

        public IFileSystem ChooseFileSystem(string lastFileSystemId)
        {
            var fs = FileSystems.FirstOrDefault(x => x.IsAvailable && x.Id == lastFileSystemId);

                        #if __IOS__
            if (fs == null)
            {
                fs = FileSystems.OfType <DeviceFileSystem> ().First(x => x.IsAvailable);
            }
                        #endif
            if (fs == null)
            {
                fs = FileSystems.First(x => x.IsAvailable);
            }

            return(fs);
        }