private void Image_OnPointerPressed(object sender, PointerRoutedEventArgs e)
{
try
{
Image img = sender as Image;
if (e.Pointer.PointerDeviceType == PointerDeviceType.Mouse)
{
var properties = e.GetCurrentPoint(img).Properties;
if (properties.IsLeftButtonPressed)
{
var bitmap = img.Source as BitmapImage;
var urls = bitmap.UriSource.Segments;
var viewModel = new ImageViewModel();
viewModel.ImgBase64 = ImageCache.GetImageBase64(urls[urls.Length - 1]);
viewModel.Width = img.ActualWidth;
viewModel.Height = img.ActualHeight;
ImageViewPage.Create(viewModel);
}
else if (properties.IsRightButtonPressed)
{
var imgModel = img.Tag as ImageListModel;
if (imgModel.ImageLoadState == EnumLoadState.Loaded)
{
imgModel.ImageLoadState = EnumLoadState.NotLoaded;
imgModel.IsCance.Cancel();
imgModel.ReLoad();
GetImageAsync(imgModel);
}
}
}
}
catch (Exception ex)
{ }
}
private async void MainPage_OnDrop(object sender, DragEventArgs e)
{
// 记得获取Deferral对象
var def = e.GetDeferral();
DataPackageView data = e.DataView;
// 还是再验证一下吧，防止意外
if (data.Contains(StandardDataFormats.StorageItems))
{
var storageItems = await data.GetStorageItemsAsync();
if (storageItems.Count > 0)
{
var item = storageItems[0];
StorageFile file = item as StorageFile;
// 生成内存图像
if (file != null)
{
ImageViewPage.Create(file);
}
}
}
VisualStateManager.GoToState(this, "Generic", false);
// 报告操作系统，处理完成
def.Complete();
}
private void View_ScriptNotify(object sender, NotifyEventArgs e)
{
try
{
if (!string.IsNullOrEmpty(e.Value))
{
JObject jsonBody = JObject.Parse(e.Value);
string method = jsonBody["method"].ToString();
string data = jsonBody["data"].ToString();
switch (method)
{
case "Scroll":
if (!IsLoadNextPage)
{
IsLoadNextPage = true;
LoadDataByPage();
}
break;
case "CacheImage":
var model = data.ToEntity <ImageListModel>();
ImageCache.SaveImageByBase64(model.ImageUrl, model.CacheName);
break;
case "ToImageView":
var imgViewData = data.ToEntity <ImageViewModel>();
ImageViewPage.Create(imgViewData);
break;
}
}
}
catch (Exception ex)
{
ShowMessage(ex.Message);
}
}