feat: 首次完成测试

DownKyi/ViewModels/UserSpace/ViewChannelViewModel.cs

@@ -0,0 +1,149 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
+using Avalonia.Media.Imaging;
+using DownKyi.Core.BiliApi.Users.Models;
+using DownKyi.Core.Storage;
+using DownKyi.Utils;
+using Prism.Commands;
+using Prism.Events;
+using Prism.Regions;
+
+namespace DownKyi.ViewModels.UserSpace;
+
+public class ViewChannelViewModel : ViewModelBase
+{
+    public const string Tag = "PageUserSpaceChannel";
+
+    private long mid = -1;
+
+    #region 页面属性申明
+
+    private ObservableCollection<Channel> channels;
+
+    public ObservableCollection<Channel> Channels
+    {
+        get => channels;
+        set => SetProperty(ref channels, value);
+    }
+
+    private int selectedItem;
+
+    public int SelectedItem
+    {
+        get => selectedItem;
+        set => SetProperty(ref selectedItem, value);
+    }
+
+    #endregion
+
+    public ViewChannelViewModel(IEventAggregator eventAggregator) : base(eventAggregator)
+    {
+        #region 属性初始化
+
+        Channels = new ObservableCollection<Channel>();
+
+        #endregion
+    }
+
+    #region 命令申明
+
+    // 视频选择事件
+    private DelegateCommand<object> channelsCommand;
+
+    public DelegateCommand<object> ChannelsCommand =>
+        channelsCommand ?? (channelsCommand = new DelegateCommand<object>(ExecuteChannelsCommand));
+
+    /// <summary>
+    /// 视频选择事件
+    /// </summary>
+    /// <param name="parameter"></param>
+    private void ExecuteChannelsCommand(object parameter)
+    {
+        if (!(parameter is Channel channel))
+        {
+            return;
+        }
+
+        Dictionary<string, object> data = new Dictionary<string, object>
+        {
+            { "mid", mid },
+            { "cid", channel.Cid },
+            { "name", channel.Name },
+            { "count", channel.Count }
+        };
+
+        // 进入视频页面
+        // NavigateToView.NavigationView(eventAggregator, ViewModels.ViewChannelViewModel.Tag, ViewUserSpaceViewModel.Tag, data);
+
+        SelectedItem = -1;
+    }
+
+    #endregion
+
+    public override void OnNavigatedFrom(NavigationContext navigationContext)
+    {
+        base.OnNavigatedFrom(navigationContext);
+
+        Channels.Clear();
+        SelectedItem = -1;
+    }
+
+    /// <summary>
+    /// 接收mid参数
+    /// </summary>
+    /// <param name="navigationContext"></param>
+    public async override void OnNavigatedTo(NavigationContext navigationContext)
+    {
+        base.OnNavigatedTo(navigationContext);
+
+        Channels.Clear();
+        SelectedItem = -1;
+
+        // 根据传入参数不同执行不同任务
+        var parameter = navigationContext.Parameters.GetValue<List<SpaceChannelList>>("object");
+        if (parameter == null)
+        {
+            return;
+        }
+
+        // 传入mid
+        mid = navigationContext.Parameters.GetValue<long>("mid");
+
+        foreach (var channel in parameter)
+        {
+            if (channel.Count <= 0)
+            {
+                continue;
+            }
+
+            Bitmap image = null;
+            if (channel.Cover == null || channel.Cover == "")
+            {
+                image = ImageHelper.LoadFromResource(new Uri($"avares://DownKyi/Resources/video-placeholder.png"));
+            }
+            else
+            {
+                StorageCover storageCover = new StorageCover();
+                string cover = null;
+                await Task.Run(() => { cover = storageCover.GetCover(channel.Cover); });
+                image = storageCover.GetCoverThumbnail(cover, 190, 190);
+            }
+
+            // 当地时区
+            DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
+            DateTime dateCTime = startTime.AddSeconds(channel.Mtime);
+            string mtime = dateCTime.ToString("yyyy-MM-dd");
+
+            Channels.Add(new Channel
+            {
+                Cid = channel.Cid,
+                // Cover = image,
+                Name = channel.Name,
+                Count = channel.Count,
+                Ctime = mtime
+            });
+        }
+    }
+}