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框架优化

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This commit is contained in:
czj
2026-05-13 10:35:35 +08:00
parent 362e509be1
commit 43323e386f
8 changed files with 9 additions and 627 deletions
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136
MainModule/ViewModels/MainViewModel.cs
View File

@@ -10,146 +10,16 @@ namespace MainModule.ViewModels
{
public class MainViewModel : NavigateViewModelBase
{
#region 属性
private ObservableCollection<PostEntity> _posts;
public ObservableCollection<PostEntity> Posts
{
get => _posts;
set => SetProperty(ref _posts, value);
}
private string _searchKeyword;
public string SearchKeyword
{
get => _searchKeyword;
set => SetProperty(ref _searchKeyword, value);
}
#endregion
#region 命令
public ICommand CreatePostCommand { get; set; }
public ICommand SearchCommand { get; set; }
public ICommand CategorySelectCommand { get; set; }
#endregion
#region 私有字段
private IContainerProvider _containerProvider;
private IPostService _postService;
private IDialogService _dialogService;
#endregion
public MainViewModel(IContainerProvider containerProvider ) : base(containerProvider)
{
_containerProvider=containerProvider;
_postService = containerProvider.Resolve<IPostService>();
_dialogService = containerProvider.Resolve<IDialogService>();
InitializeCommands();
LoadPosts();
}
private void InitializeCommands()
{
CreatePostCommand = new DelegateCommand(OnCreatePost);
SearchCommand = new AsyncDelegateCommand(OnSearch);
CategorySelectCommand = new AsyncDelegateCommand<string>(OnCategorySelect);
}
#region 命令处理
private async void OnCreatePost()
{
// 这里可以导航到发帖页面
ShowInfoMessageBox("跳转到发帖页面",null);
}
private async Task OnSearch()
{
// 执行搜索逻辑
if (!string.IsNullOrWhiteSpace(SearchKeyword))
{
await SearchPostsAsync(SearchKeyword);
}
}
private async Task OnCategorySelect(string category)
{
// 按分类筛选帖子
await FilterPostsByCategoryAsync(category);
}
#endregion
#region 业务方法
private async Task LoadPosts()
{
try
{
var result = await _postService.GetRecommendedPostsAsync(20);
if (result.IsSuccess)
{
Posts = new ObservableCollection<PostEntity>(result.Data);
}
else
{
ShowErrorMessageBox("帖子加载错误",null);
}
}
catch (Exception ex)
{
ShowErrorMessageBox($"加载帖子异常: {ex.Message}", null);
}
}
private async Task SearchPostsAsync(string keyword)
{
try
{
var result = await _postService.SearchPostsAsync(keyword);
if (result.IsSuccess)
{
Posts = new ObservableCollection<PostEntity>(result.Data);
}
else
{
ShowErrorMessageBox("查询帖子失败", null);
}
}
catch (Exception ex)
{
// 处理异常
ShowErrorMessageBox($"查询帖子异常: {ex.Message}", null);
}
}
private async Task FilterPostsByCategoryAsync(string category)
{
if (category == "全部")
{
await LoadPosts(); // 重新加载所有帖子
return;
}
try
{
var result = await _postService.GetPostsByCategoryAsync(category, 20);
if (result.IsSuccess)
{
Posts = new ObservableCollection<PostEntity>(result.Data);
}
else
{
ShowErrorMessageBox("加载分类子失败", null);
}
}
catch (Exception ex)
{
ShowErrorMessageBox($"获取分类帖子异常: {ex.Message}", null);
}
}
#endregion
}
}

138
MainModule/ViewModels/PostDetailViewModel.cs
View File

@@ -1,138 +0,0 @@
using Model.Entity;
using Prism.Commands;
using Prism.Ioc;
using Service.Interface;
using System.Windows.Input;
using UIShare.ViewModelBase;
namespace MainModule.ViewModels
{
public class PostDetailViewModel : NavigateViewModelBase
{
#region 属性
private PostEntity _selectedPost;
public PostEntity SelectedPost
{
get => _selectedPost;
set => SetProperty(ref _selectedPost, value);
}
#endregion
#region 命令
public ICommand LikePostCommand { get; set; }
public ICommand FavoritePostCommand { get; set; }
public ICommand SharePostCommand { get; set; }
#endregion
#region 私有字段
private IContainerProvider _containerProvider;
private IPostService _postService;
private IDialogService _dialogService;
#endregion
public PostDetailViewModel(IContainerProvider containerProvider) : base(containerProvider)
{
_containerProvider = containerProvider;
_postService = containerProvider.Resolve<IPostService>();
_dialogService = containerProvider.Resolve<IDialogService>();
InitializeCommands();
}
private void InitializeCommands()
{
LikePostCommand = new DelegateCommand(OnLikePost);
FavoritePostCommand = new DelegateCommand(OnFavoritePost);
SharePostCommand = new DelegateCommand(OnSharePost);
}
#region 命令处理
private async void OnLikePost()
{
if (SelectedPost != null)
{
SelectedPost.LikeCount++;
// 在实际应用中，这里应该调用服务更新数据库
var result = await _postService.UpdatePostAsync(SelectedPost);
if (!result.IsSuccess)
{
var dialogParams = new DialogParameters();
dialogParams.Add("Title", "错误");
dialogParams.Add("Message", "点赞失败" + result.Msg);
dialogParams.Add("Icon", "error");
dialogParams.Add("ShowOk", true);
_dialogService.ShowDialog("MessageBox", dialogParams);
}
}
}
private async void OnFavoritePost()
{
if (SelectedPost != null)
{
var dialogParams = new DialogParameters();
dialogParams.Add("Title", "提示");
dialogParams.Add("Message", "帖子已收藏");
dialogParams.Add("Icon", "info");
dialogParams.Add("ShowOk", true);
_dialogService.ShowDialog("MessageBox", dialogParams, result =>
{
if (result.Result == ButtonResult.OK)
{
// 用户点击了确定
}
});
}
}
private async void OnSharePost()
{
if (SelectedPost != null)
{
var dialogParams = new DialogParameters();
dialogParams.Add("Title", "提示");
dialogParams.Add("Message", "分享功能待实现");
dialogParams.Add("Icon", "info");
dialogParams.Add("ShowOk", true);
_dialogService.ShowDialog("MessageBox", dialogParams, result =>
{
if (result.Result == ButtonResult.OK)
{
// 用户点击了确定
}
});
}
}
#endregion
#region 业务方法
public async void LoadPostDetails(PostEntity post)
{
if (post != null)
{
SelectedPost = post;
// 增加浏览量
SelectedPost.ViewCount++;
// 在实际应用中，这里应该调用服务更新数据库
var result = await _postService.UpdatePostAsync(SelectedPost);
if (!result.IsSuccess)
{
var dialogParams = new DialogParameters();
dialogParams.Add("Title", "错误");
dialogParams.Add("Message", "加载帖子详情失败" + result.Msg);
dialogParams.Add("Icon", "error");
dialogParams.Add("ShowOk", true);
_dialogService.ShowDialog("MessageBox", dialogParams);
}
}
}
#endregion
}
}