信箱载入更多和刷新

zcbenz · Mar 7, 2012 · 73a8604 · 73a8604
1 parent 54280b6
commit 73a8604
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Showing 6 changed files with 110 additions and 40 deletions.
diff --git a/Tile.xaml → Controls/Tile.xaml b/Tile.xaml → Controls/Tile.xaml
diff --git a/Tile.xaml.cs → Controls/Tile.xaml.cs b/Tile.xaml.cs → Controls/Tile.xaml.cs
diff --git a/MailboxPage.xaml b/MailboxPage.xaml
@@ -64,36 +64,54 @@
         <!--Pivot Control-->
         <controls:Pivot LoadedPivotItem="Pivot_LoadedPivotItem" x:Name="MailboxPivot" Title="虎踞龙蟠BBS">
             <controls:PivotItem Header="收件箱">
-                <ListBox ItemsSource="{Binding InboxItems}" ItemTemplate="{StaticResource MailDataTemplate}"
-                         SelectionChanged="Mail_Selected">
-                    <ListBox.ItemContainerStyle>
-                        <Style TargetType="ListBoxItem">
-                            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
-                        </Style>
-                    </ListBox.ItemContainerStyle>
-                </ListBox>
+                <ScrollViewer>
+                    <StackPanel>
+                        <ListBox ItemsSource="{Binding InboxItems}" ItemTemplate="{StaticResource MailDataTemplate}"
+                                 ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                                 SelectionChanged="Mail_Selected">
+                            <ListBox.ItemContainerStyle>
+                                <Style TargetType="ListBoxItem">
+                                    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+                                </Style>
+                            </ListBox.ItemContainerStyle>
+                        </ListBox>
+                        <Button Visibility="Collapsed" Margin="-12 0" x:Name="LoadMore1" Content="载入更多" Click="LoadMore_Click"/>
+                    </StackPanel>
+                </ScrollViewer>
             </controls:PivotItem>
 
             <controls:PivotItem Header="发件箱">
-                <ListBox ItemsSource="{Binding SentItems}" ItemTemplate="{StaticResource MailDataTemplate}"
-                         SelectionChanged="Mail_Selected">
-                    <ListBox.ItemContainerStyle>
-                        <Style TargetType="ListBoxItem">
-                            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
-                        </Style>
-                    </ListBox.ItemContainerStyle>
-                </ListBox>
+                <ScrollViewer>
+                    <StackPanel>
+                        <ListBox ItemsSource="{Binding SentItems}" ItemTemplate="{StaticResource MailDataTemplate}"
+                                 ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                                 SelectionChanged="Mail_Selected">
+                            <ListBox.ItemContainerStyle>
+                                <Style TargetType="ListBoxItem">
+                                    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+                                </Style>
+                            </ListBox.ItemContainerStyle>
+                        </ListBox>
+                        <Button Visibility="Collapsed" Margin="-12 0" x:Name="LoadMore2" Content="载入更多" Click="LoadMore_Click"/>
+                    </StackPanel>
+                </ScrollViewer>
             </controls:PivotItem>
 
             <controls:PivotItem Header="垃圾箱">
-                <ListBox ItemsSource="{Binding DeletedItems}" ItemTemplate="{StaticResource MailDataTemplate}"
-                         SelectionChanged="Mail_Selected">
-                    <ListBox.ItemContainerStyle>
-                        <Style TargetType="ListBoxItem">
-                            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
-                        </Style>
-                    </ListBox.ItemContainerStyle>
-                </ListBox>
+                <ScrollViewer>
+                    <StackPanel>
+                        <ListBox ItemsSource="{Binding DeletedItems}" ItemTemplate="{StaticResource MailDataTemplate}"
+                                 ScrollViewer.VerticalScrollBarVisibility="Disabled"
+                                 SelectionChanged="Mail_Selected">
+                            <ListBox.ItemContainerStyle>
+                                <Style TargetType="ListBoxItem">
+                                    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
+                                </Style>
+                            </ListBox.ItemContainerStyle>
+                        </ListBox>
+                        <Button Visibility="Collapsed" Margin="-12 0" x:Name="LoadMore3" Content="载入更多" Click="LoadMore_Click"/>
+                    </StackPanel>
+                </ScrollViewer>
             </controls:PivotItem>
         </controls:Pivot>
     </Grid>

diff --git a/MailboxPage.xaml.cs b/MailboxPage.xaml.cs
@@ -28,13 +28,21 @@ private void SetLoading()
             App.ViewModel.Mailbox.IsLoading = isLoading[0] | isLoading[1] | isLoading[2];
         }
 
+        // 载入按钮集合
+        Button[] LoadMore = { null, null, null };
+
         public MailboxPage()
         {
             InitializeComponent();
 
             if (App.ViewModel.Mailbox == null)
                 App.ViewModel.Mailbox = new MailboxViewModel();
+
             DataContext = App.ViewModel.Mailbox;
+
+            LoadMore[0] = LoadMore1;
+            LoadMore[1] = LoadMore2;
+            LoadMore[2] = LoadMore3;
         }
 
         // 进入页面时根据参数切换到指定的页面
@@ -82,28 +90,65 @@ private void Mail_Selected(object sender, SelectionChangedEventArgs e)
         }
 
         // 加载指定的信箱
-        private void LoadMailbox(int type)
+        private void LoadMailbox(int type, bool append = false)
         {
             isLoading[type] = true;
             SetLoading();
-            App.Service.MailBox(type, currentPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> mails, bool success, string error)
+            int loadPage = append ? currentPage + 1 : currentPage;
+            App.Service.MailBox(type, loadPage * pageSize, pageSize, delegate(ObservableCollection<TopicViewModel> mails, bool success, string error)
             {
                 isLoading[type] = false;
                 SetLoading();
 
                 if (mails != null)
                 {
-                    switch (type)
+                    // 直接覆盖
+                    if (!append)
                     {
-                        case 0:
-                            App.ViewModel.Mailbox.InboxItems = mails;
-                            break;
-                        case 1:
-                            App.ViewModel.Mailbox.SentItems = mails;
-                            break;
-                        case 2:
-                            App.ViewModel.Mailbox.DeletedItems = mails;
-                            break;
+                        switch (type)
+                        {
+                            case 0:
+                                App.ViewModel.Mailbox.InboxItems = mails;
+                                break;
+                            case 1:
+                                App.ViewModel.Mailbox.SentItems = mails;
+                                break;
+                            case 2:
+                                App.ViewModel.Mailbox.DeletedItems = mails;
+                                break;
+                        }
+                    }
+                    // 或者接在后面
+                    else
+                    {
+                        switch (type)
+                        {
+                            case 0:
+                                foreach (TopicViewModel mail in mails)
+                                    App.ViewModel.Mailbox.InboxItems.Add(mail);
+                                break;
+                            case 1:
+                                foreach (TopicViewModel mail in mails)
+                                    App.ViewModel.Mailbox.SentItems.Add(mail);
+                                break;
+                            case 2:
+                                foreach (TopicViewModel mail in mails)
+                                    App.ViewModel.Mailbox.DeletedItems.Add(mail);
+                                break;
+                        }
+                        ++currentPage;
+                    }
+
+                    // 判断是否显示下一页
+                    if (mails.Count < pageSize)
+                    {
+                        LoadMore[type].Visibility = Visibility.Collapsed;
+                        LoadMore[type].IsEnabled = false;
+                    }
+                    else
+                    {
+                        LoadMore[type].Visibility = Visibility.Visible;
+                        LoadMore[type].IsEnabled = true;
                     }
                 }
             });
@@ -112,7 +157,14 @@ private void LoadMailbox(int type)
         // 刷新按钮
         private void Refresh_Click(object sender, EventArgs e)
         {
+            currentPage = 0;
             LoadMailbox(MailboxPivot.SelectedIndex);
         }
+
+        // 载入更多
+        private void LoadMore_Click(object sender, RoutedEventArgs e)
+        {
+            LoadMailbox(MailboxPivot.SelectedIndex, true);
+        }
     }
 }
diff --git a/ValueConverters/StampDateConverter.cs b/ValueConverters/StampDateConverter.cs
@@ -24,9 +24,9 @@ public object Convert(object value, Type targetType, object parameter, CultureIn
             if (date.Year == now.Year && date.Month == now.Month && date.Day == now.Day)
                 return date.ToString("HH:mm", culture);
             else if (date.Year == now.Year)
-                return date.ToString("MM月d日 HH:mm", culture);
+                return date.ToString("M月d日 HH:mm", culture);
             else
-                return date.ToString("yyyy年MM月d日", culture);
+                return date.ToString("yyyy年M月d日", culture);
         }
 
         public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

diff --git a/sbbs-client-wp7.csproj b/sbbs-client-wp7.csproj
@@ -100,7 +100,7 @@
     <Compile Include="SettingsPage.xaml.cs">
       <DependentUpon>SettingsPage.xaml</DependentUpon>
     </Compile>
-    <Compile Include="Tile.xaml.cs">
+    <Compile Include="Controls\Tile.xaml.cs">
       <DependentUpon>Tile.xaml</DependentUpon>
     </Compile>
     <Compile Include="TopicPage.xaml.cs">
@@ -169,7 +169,7 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
-    <Page Include="Tile.xaml">
+    <Page Include="Controls\Tile.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>