A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
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Based on my research, this answer is no, you cannot control other applications that install your android device by Xamarin or android native Api.
As you known, we just could open other applications like this thread.
https://forums.xamarin.com/discussion/48089/how-to-open-other-apps-from-xamarin-forms
Best Regards,
Leon Lu
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