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wcoder / Xamarin.Plugin.DeviceOrientation

Cross-platform plugin to work with screen orientation of mobile device.
MIT License
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NullReferenceException on Android #9

Closed pollaris closed 6 years ago

pollaris commented 6 years ago

On android with:

String s = CrossDeviceOrientation.Current.CurrentOrientation.ToString();

I get:

System.NullReferenceException: 
Object reference not set to an instance of an object.

Working normally on Windows Phone.

wcoder commented 6 years ago

Hi @pollaris, thank you for the feedback!

What version of plugin do you use?

Xamarin.Forms or Xamarin.Native?

Also, please check initialization of CurrentActivity plugin: For Xamarin.Native: https://github.com/wcoder/Xamarin.Plugin.DeviceOrientation/blob/master/samples/DeviceOrientation.Samples.Droid/MainApplication.cs#L34 Xamarin.Forms: https://github.com/wcoder/Xamarin.Plugin.DeviceOrientation/blob/master/samples/Xamarin.Forms-sample/TestNugetDeviceOrientationPlugin/TestNugetDeviceOrientationPlugin.Android/MainActivity.cs#L16

pollaris commented 6 years ago

I was using Xamarin Forms. I decided to use

protected override void OnSizeAllocated(double width, double height)

instead. As far as my question, thank you for pointing out that I was not including

CrossCurrentActivity.Current.Activity = this;

in the Droid section. Cheers, -Russ