在MvvmCross中使用MvxListView的多选列表视图

private ObservableCollection<ItemViewModel> selectedItems = new ObservableCollection<ItemViewModel>();
public ObservableCollection<ItemViewModel> SelectedItems
{
    get { return selectedItems; }
    set { SetProperty(ref selectedItems, value); }
}

<MvxListView
    ItemsSource="{Binding Items}"
    SelectedItems="{Binding SelectedItems}"
    SelectionMode="Multiple">
    <MvxListView.ItemTemplate>
        <DataTemplate>
            <!-- 定义列表项的布局 -->
        </DataTemplate>
    </MvxListView.ItemTemplate>
</MvxListView>

private void SelectedItemsChanged()
{
    // 处理选中项的变化
}

public override void ViewAppearing()
{
    base.ViewAppearing();
    SelectedItems.CollectionChanged += (sender, e) => SelectedItemsChanged();
}

public override void ViewDisappearing()
{
    base.ViewDisappearing();
    SelectedItems.CollectionChanged -= (sender, e) => SelectedItemsChanged();
}