Questions tagged as 'xamarin-forms'

Tagged questions
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AlarmManager Schedule a task during the week

Hello, I want to schedule an sql task to run in the background of my application, in which task it has to start on Tuesday and be run every hour until the task returns data, then the application sends a notification to the user and stops the tas...
asked by 01.02.2018 / 17:07
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Setting Permissions on Xamarin.Forms.Maps

I'm trying to make a call that will use a map and should pick up the current location and plot a route to the destination location. The problem is that I can not configure the permissions to access the device information, even though I put the p...
asked by 28.01.2018 / 01:50
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Images disappearing from my application using Xamarin Forms

I made an application using the Xamarin Forms Cross Platform, at first I only need the android version of it so I do not care about IOS and Windows. The application is working properly when I test it on one of my Xiaomi Redmi 4x cell phones, but...
asked by 03.01.2018 / 20:59
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Xamarin Forms MVVM Binding Listview

I want to create a list of users, but I am not able to perform the binding, the data is not displayed. If the Here is my structure: UserList.xaml: <?xml version="1.0" encoding="utf-8" ?> <ContentPage xmlns="http://xamarin.com/schem...
asked by 28.11.2017 / 19:58
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How to use Android.Hardware.Camera2 in Xamarin

I'm having some difficulty understanding how to use it    Android.Hardware.Camera2; How the OpenCamera () method works and what goes in as a parameter in AvailabilityCallback. Can someone help me? if (Android.OS.Build.VERSION.SdkInt...
asked by 16.11.2017 / 13:15
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Problem with APK Size Generated by Visual Studio

I am using the latest version of Visual Studio Community 2017, and when I generate the apk, it is getting mega 90. I have already made several changes and I did not get results. It is a simple project with few classes and features, a maximum of...
asked by 19.10.2017 / 00:35
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ListView loads by call from builder but not by button

I have a listview in my app and I created in my ViewModel a LoadListView () method; When I call it through the constructor of my ViewModel, an ObservableCollection list is loaded and the binding is given in my view. When I call the LoadLis...
asked by 07.10.2017 / 21:47
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Refresh Page after PopAsync in XamarinForms

I have a page with the expense list that contains travel information such as Gross Amount, Expense and Net Amount and also a list with the expenses of my trip. The problem is that when I edit or create a new expense, and give the PopAsync comman...
asked by 12.10.2017 / 02:47
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Error of: Unauthorized

I downloaded a project to test push notification. I'm trying in many ways and without success. This project is from a guy named HabibAli . When Squeeze gives the error of    Unauthorized This is the program code for sending notifications...
asked by 26.09.2017 / 12:49
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Login with Facebook on Xamarin Forms

I'm developing an application using Xamarin.Forms and need to use Facebook's authentication system. what happens is that when I debug it I get an error message saying:    Unable to load URL: The domain for this URL is not included   in the ap...
asked by 09.09.2017 / 18:43