My Xamarin Forms 5 app will allow users to upload their own images which can be large. I noticed that large images were taking a long time to show so I installed FFImageLoading
and followed the instructions on their Github page at https://github.com/luberda-molinet/FFImageLoading/wiki/Xamarin.Forms-API.
Specifically, I installed the following packages:
Xamarin.FFImageLoading Version="2.4.11.982"
Xamarin.FFImageLoading.Forms Version="2.4.11.982"
Xamarin.FFImageLoading.Svg.Forms Version="2.4.11.982"
Xamarin.FFImageLoading.Transformations Version="2.4.11.982"
I also initialized it as follows:
OnCreate
method of MainActivity.cs
, I added FFImageLoading.Forms.Platform.CachedImageRenderer.Init(enableFastRenderer:true);
AND FFImageLoading.Forms.Platform.CachedImageRenderer.InitImageViewHandler();
FinishedLaunching()
method of AppDelegate.cs
, I added FFImageLoading.Forms.Platform.CachedImageRenderer.Init();
AND FFImageLoading.Forms.Platform.CachedImageRenderer.InitImageSourceHandler();
I first tried it without changing anything in my XAML files, meaning I used the regular Image
control and images would NOT show at all.
I then tried the following and I see NOTHING at all:
...
xmlns:ffil="clr-namespace:FFImageLoading.Forms;assembly=FFImageLoading.Forms"
...
<ffil:CachedImage
Source="{Binding FileUrl}"
DownsampleWidth="150"
DownsampleToViewSize="True"/>
IMPORTANT:
I also want to mention that the images are displayed within CollectionView
controls AND in all cases, their source is a URL and NOT a local path.
Any idea what maybe the issue here and how to fix it?
As I'm aware FFImageLoading is not maintained anymore. A lot of apps are still using the package but keep in mind that reported open issues will most likely not be fixed. It is sad because this is one of the most popular packages for Xamarin Forms, but it looks like we will have to start looking for alternatives.
Good luck with this.