Questions tagged as 'xamarin'

Tagged questions
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XamarinForms-error CS0246: The name of the type or namespace 'X' (missing a using directive or an assembly reference?)

Today in the morning I had this problem and I have not been able to solve it, I understand that the error CS0246 indicates that I am missing some reference, I have tried to add and remove the reference of the application but I have not obtaine...
asked by 26.06.2018 / 00:07
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Perform signature capture and save it on android device using xamarin

This is my code, but I do not know how to save the signature to my Android device. using SignaturePad.Forms; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System...
asked by 18.06.2018 / 22:42
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Xamarin Form handling Uri tel does not detect more than 9 digits

Does anyone know the command Device.OpenUri(new Uri("tel://" + numeroTelefono)); only redirects me to my calling application if it has less than 10 digits, what happens is that the numbers of cell phones in Mexico are 10 digits?     
asked by 16.06.2018 / 00:29
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Access error denied in Xamarin

I am developing an App on Xamarin.Android and I get the following error when I try to create a PDF on the device ...    System.UnauthorizedAccessException: Access to the path "/ mnt / sdcard-ext" is denied. The weird thing is that in the...
asked by 04.06.2018 / 16:20
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Navigation between pages

I'm doing an Android application with Xamarin, in the app I have 2 pages one that is the login page (username, password and a login button), that when I press that button, it takes me to the second page that would be the page of the menu. When I...
asked by 24.05.2018 / 19:38
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System.UnauthorizedAccessException:

I have problem in giving permission to a route to export there a pdf in xamarin android how can I do it: here I have what I have done //Define permisos requeridos por aplicación. readonly string[] PermissionsMyApp = { Man...
asked by 23.05.2018 / 20:15
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Azure Notifications Xamarin Hub. The next day notifications arrive

something very strange happens to me and I wanted to know if someone has happened to him. I have the Notifications configured through Azure Notifications Hub, everything goes fine on the day, notifications arrive. The next day, they do not arriv...
asked by 23.05.2018 / 14:21
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pushasync-is-not-supported-globally-on-android-please-use-a-navigationpage

I am trying to visualize the data of a listView in the MainPage (main) by passing it from another page but it gives me this error ... pushasync-is-not-supported-globally-on-Android-please-use-a-navigationpage . In the App.cs I have this: pu...
asked by 22.05.2018 / 14:45
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Open a View of the Cross Platform project, from the Android Project Notification XAMARIN

I have a notification that I need to open a view that I have in the shared project, but the notification is processed in Android, then I have the click event of the notification in android and from there I have to open a view as I show in the ca...
asked by 17.05.2018 / 15:47
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I can not launch whatsapp

I can not get into the DependencyService from the main to launch Whatsapp Interface: public interface IWhatsApp { void OpenWhatsApp(StringBuilder whatsapp); } Android: [assembly: Xamarin.Forms.Dependency(typeof(IWhatsApp))] namespa...
asked by 11.05.2018 / 10:15