问题
I have an AnimatedVisualPlayer on my Page for playing a Lottie:
<winui:AnimatedVisualPlayer
x:Name="player"
AutoPlay="true" Width="150" Height ="150" PlaybackRate="1.5">
<lottie:LottieVisualSource
UriSource="ms-appx:///Lottie/waiter.json" />
</winui:AnimatedVisualPlayer>
I installed these packages:
- Microsoft.Toolkit.Uwp.UI.Lottie (for theLottieVisualSource)
- Microsoft.UI.Xaml (for the AnimatedVisualPlayer)
- Uno.UI.Lottie (for the LottieVisualSource)
- Uno.UI (for the AnimatedVisualPlayer)
I did it also:
On WASM, iOS and macOS, you can put the Lottie .json files directly in a folder of the shared project (for example "Lottie/myanimation.json") and set their Build action as Content.
UWP can play the Lottie seamlessly:
However, WASM cannot play Lottie with this error:
Nuget Package Version(s):
Nuget Package:
Package Version(s):
- Uno.UI.RemoteControl {2.4.0}
- Newtonsoft.Json {12.0.3}
- Uno.UI.Lottie {2.4.0}
- Uno.Wasm.Bootstrap {1.2.0}
- Uno.Wasm.Bootstrap.DevServer {1.2.0}
- ACM_Search_AdminApps.Shared {1.1.0}
- Microsoft.Extensions.Logging.Filter {1.1.2}
- Microsoft.Extensions.Logging.Con... {1.1.1}
- NETStandard.Library {2.0.3}
- Uno.UI {2.4.0}
- ACM_Search_AdminApps.Shared {1.1.0}
- Microsoft.NETCore.UniversalWindo... {6.2.10}
- Microsoft.Extensions.Logging.Con... {1.1.1}
- Microsoft.Extensions.Logging.Filter {1.1.2}
- Microsoft.Toolkit.Uwp.UI.Lottie {6.0.0}
- Microsoft.UI.Xaml {2.4.2}
- Newtonsoft.Json {12.0.3}
- Uno.Core {2.0.0}
- Microsoft.Toolkit.Uwp.UI.Lottie {6.0.0}
How can I fix this ? Thanks.
回答1:
This is a bug in the Lottie add-in for Uno-Wasm, caused by the fact you were using the PlaybackRate and you're running in a non-english context with a culture where the decimal are serialized using a comma and not a dot.
This PR #3257 should fix the problem.
UPDATE: This PR has been merged and the fix will be available in Uno v3.0.0-dev.135.
来源：https://stackoverflow.com/questions/62030326/uncaught-type-javascript-error-in-uno-lottie-webassembly