ArgumentNullException on iOS

[CesareSoldani]

Bug Information

Version Number of Plugin: 3.1.3
Device Tested On: iPad
Simulator Tested On:
Version of VS: 2017
Version of Xamarin: 2.5.1.444934
Versions of other things you are using:

Steps to reproduce the Behavior

        if (!CrossMedia.Current.IsPickPhotoSupported)
        {
            App.DisplayAlert("Photos Not Supported", ":( Permission not granted to photos.", "OK");
            return;
        }

        var file = await Plugin.Media.CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
        {
            PhotoSize = Plugin.Media.Abstractions.PhotoSize.Medium,

        });

Expected Behavior

Actual Behavior

Image picker is displayed, but once you select an image...

2018-05-17 12:16:10.141 SkiaDraw.iOS[350:31646] Unable to get metadata: System.ArgumentNullException: Value cannot be null.
Parameter name: asset
at Photos.PHImageManager.RequestImageData (Photos.PHAsset asset, Photos.PHImageRequestOptions options, Photos.PHImageDataHandler handler) [0x00087] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.10.1.177/src/Xamarin.iOS/Photos/PHImageManager.g.cs:169
at Plugin.Media.PhotoLibraryAccess.GetPhotoLibraryMetadata (Foundation.NSUrl url) [0x0004c] in :0
at Plugin.Media.MediaPickerDelegate+d__25.MoveNext () [0x00305] in :0

Code snippet

Screenshots

[Vladis466]

Verified, same behavior using 4.0.0.9 and 3.1.3.

Video upload from library works fine.

Running on iOS 11.4

[lucky-c]

Same, this bug also happen on 3.1.2 but only on iOS.
For temporary workaround for this issue, you can set SaveMetaData for PickMediaOptions to false.

[jamesmontemagno]

What is in your info.plist?

[CesareSoldani]

`

UIDeviceFamily 1 2 UISupportedInterfaceOrientations UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight UISupportedInterfaceOrientations~ipad UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight MinimumOSVersion 11.3 CFBundleDisplayName SkiaDraw CFBundleIdentifier com.companyname.SkiaDraw CFBundleVersion 1.0 CFBundleIconFiles Icon-60@2x Icon-60@3x Icon-76 Icon-76@2x Default Default@2x Default-568h@2x Default-Portrait Default-Portrait@2x Icon-Small-40 Icon-Small-40@2x Icon-Small-40@3x Icon-Small Icon-Small@2x Icon-Small@3x UILaunchStoryboardName LaunchScreen NSCameraUsageDescription This app needs access to the camera to take photos. NSPhotoLibraryUsageDescription This app needs access to photos. NSMicrophoneUsageDescription This app needs access to microphone. NSPhotoLibraryAddUsageDescription This app needs access to the photo gallery. `

Hmm, wont let me paste xml nicely, what are you looking for?

[K232]

Same here with 4.0.1.5 on iOS

Unable to get metadata: System.ArgumentNullException: Value cannot be null.
Parameter name: asset
at Photos.PHImageManager.RequestImageData (Photos.PHAsset asset, Photos.PHImageRequestOptions options, Photos.PHImageDataHandler handler) [0x00003] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.14.0.14/src/Xamarin.iOS/Photos/PHImageManager.g.cs:152
at Plugin.Media.PhotoLibraryAccess.GetPhotoLibraryMetadata (Foundation.NSUrl url) [0x0004c] in <390f35b1db5e43b894d803204ceef8a9>:0
at Plugin.Media.MediaPickerDelegate+d__25.MoveNext () [0x00319] in <390f35b1db5e43b894d803204ceef8a9>:0

Using SaveMetaData = false as propose by @lucky-c fixed it, thanks!

[ltbao472]

Same, this bug also happen on 3.1.2 but only on iOS.
For temporary workaround for this issue, you can set SaveMetaData for PickMediaOptions to false.

Thanks @lucky-c, it worked for me.