I have installed SignaturePad.Forms nuget on PCL/ Platform specific projects, and SignaturePad nuget on Android/ iOS projects. However, SignaturePad is working fine on iOS, but not on Android as its not showing the Canvas panel it self and showing empty panel. When I was going through the references added in Android project, SignaturePad assembly is pointing to the assembly which is installed in ..\packages\Xamarin.Controls.SignaturePad.2.1.0\lib\Xamarin.iOS and not the MonoDroid assmebly.
This problem happens only when you want to use/install SignaturePad control on both iOS and Android platforms. And its only working on one platform and on others its just showing empty panel.
Please let me know the exact issue to correct it or fix it if its a nuget package issue.