實現動態加載圖片列表,並能觸摸滑動的效果,所以使用UniformGrid控件來顯示列表,搭配surface的多點觸摸來做滑動。
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:surface="http://schemas.microsoft.com/surface/2008"
Title="MainWindow" Height="600" Width="800">
<Grid>
<surface:SurfaceScrollViewer x:Name="scrollViewer1" ScrollViewer.PanningMode="VerticalOnly" ScrollViewer.VerticalScrollBarVisibility="Hidden" ScrollViewer.HorizontalScrollBarVisibility="Hidden">
<UniformGrid VerticalAlignment="Top" Name="uniformGrid1" Columns="3"></UniformGrid>
</surface:SurfaceScrollViewer>
</Grid>
</Window>
如果在TouchUp或MouseUp是就出發查看圖片詳情,會在觸摸滑動后也觸發此事件,所以需要判斷是否點擊后彈起,這樣就可以在圖片的MouseUp事件里加入查看圖片詳情。
后台代碼:
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace WpfApplication1
{
/// <summary>
/// MainWindow.xaml 的交互邏輯
/// </summary>
public partial class MainWindow : Window
{
bool isMoving = false, isClick = false;
public MainWindow()
{
InitializeComponent();
for (int i = 0; i < 10; i++)
{
StackPanel panel = new StackPanel();
panel.Width = 200;
panel.Height = 200;
panel.Margin = new Thickness(10);
panel.Background = Brushes.Black;
panel.PreviewMouseUp += new MouseButtonEventHandler((o, e) =>
{
if (!isMoving && isClick)
{
isClick = false;
}
});
panel.PreviewTouchDown += new EventHandler<TouchEventArgs>((o, e) =>
{
isClick = true;
});
uniformGrid1.Children.Add(panel);
}
scrollViewer1.PreviewTouchDown += new EventHandler<TouchEventArgs>((o, e) =>
{
isMoving = false;
isClick = false;
});
scrollViewer1.PreviewTouchUp += new EventHandler<TouchEventArgs>((o, e) =>
{
isMoving = false;
});
scrollViewer1.ScrollChanged += new ScrollChangedEventHandler((o, e) =>
{
isMoving = true;
isClick = false;
});
}
}
}
這本不該是問題的,但就是這樣的小程序在公司的硬件設備上不能正常使用,原因是硬件對MouseUp與TouchUp支持不好。
