英文:
MAUI CollectionView show Thumbnail instead full size photo
问题
我创建了一个用于显示应用程序自己捕获的特定照片的CollectionView。
当显示原始照片时，速度非常慢，例如5MB~10MB的大小可能太大了。
是否有任何方法可以获取甚至创建预览缩略图？
我尝试使用C#标准方式，但Image.Save（在MAUI中的MemoryStream）仅适用于Windows平台...
英文:
I created a Collection View for a app that showing photo specific by self app captured.
When showing the original photo it very slow e.g. the size of 5MB~10MB may be too large for showing.
Is there any way that I can get or even create the thumbnail for preview?
I tried for using C# standard way but the Image.Save( MemoryStream in MAUI is Windows platform only ...
答案1
得分: 0
首先，我想指出，这不是一个选择的问题。
过大的图像将无法呈现，您将看到的只是白色空间。（从在Android上测试中得出的结论。）
您可以首先检查这个链接：
https://learn.microsoft.com/en-us/dotnet/maui/user-interface/graphics/images?view=net-maui-7.0
我还使用ImageSharp。（尽管最近发生了一些荒谬的事情，但这仍然是一个非常好的工具）。
无论如何，也许最好将照片和缩略图分开存储，谈到集合视图，如果您需要大规模缩放5-10 MB的照片，我认为它可能性能不佳。至少我使用的设备不能有效地执行此操作。
英文:
First of all, I want to point out, that it is not a matter of choice.
Too big images will not be rendered, and you will see nothing but white space. (Learned that from testing it on Android.)
You can check this first:
https://learn.microsoft.com/en-us/dotnet/maui/user-interface/graphics/images?view=net-maui-7.0
I also use ImageSharp. (Despite the non-sense that happened recently, this is still a very good tool).
In any case, maybe it will be good to store the photo and the thumbnail separately, speaking of collection view, I do not think that it will perform well, if you need to mass-scale 5-10 MB photos. At least the devices I use cannot do this effectively.
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