Parameterless constructor error in iOS

[AnilKakaraG1]

Clearly I'm doing something wrong. Whenever I load a XAML page that has the CameraView in iOS I get a crash with, "No parameterless constructor defined for type BarcodeScanning.CameraView" I have the latest version of the library (2.1.3).

<scanner:CameraView HeightRequest="400" OnDetectionFinished="CameraView_OnDetectionFinished" />

[Domik234]

Hey, I've tried the .NET 8 + BarcodeScanning v.1.7.4 and the same happened.

At start I've replaced the XAML construction with C# construction that made this one exception disappear but when I've continued with testing - it crashed after some tries of constructing page with scanner (randomly from 2nd to 9th construction of page with CameraView).

I've moved back to 1.5.9 where these complications have not existed.

[afriscic]

Please try to clone the Test project and try with it to see if the problem persists

[Domik234]

Hello @afriscic,
test project on iOS appears to work and XamlParseException is not happening there on both .NET versions (will have to look on later why this happens).

But opening the ScanPage crashes on second time with both (1.7.4 - NET8, 2.1.4 - NET9) leads to crash:

**System.ObjectDisposedException:** 'Cannot access a disposed object.
Object name: 'AVFoundation.AVCaptureDevice'.'

ScanTab can be visited repeatedly. Maybe there is disposing of shared resources when disconnecting handler on page disappearing/unloading?