Questions tagged as 'xamarin'

Tagged questions
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Error creating Xamarin cross plataform project in Visual Studio. "The project requires a Platform SDK (UAP, version = 10.0.10.586.0)"

When you try to create a Cross PlatForm App project with the Master Detail I get this error: TheSDKthatitclaimsismissingisinstalled.I'vereinstalleditseveraltimes.WhenItrytocreateaCrossPlatformAppwiththeBlackApp(Xaml)templateIgetthiserror...
asked by 04.12.2016 / 13:43
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OnExit event in editText?

I'm looking for an event called onExit in editText , but I found none. What I want to do is add a function when leaving the field. Ex 1: The user is using a bluetooth barcode reader and when he reads the code, the reader already...
asked by 09.06.2016 / 14:29
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Block android application closure

I'm developing a managerial application for Android, using C # with Xamarin. There is some way to block the application (or block all buttons on the tablet) so that the user can not shut it down, except with some password authorization. The user...
asked by 25.11.2014 / 21:05
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Reference with a yellow triangle, what does it mean?

When you have an exclamation mark, I understand that the reference is in trouble and needs to be removed / reinstalled. But with this little triangle, I do not know. I saw that the package is installed. If so, what should I do? See the screensho...
asked by 15.09.2017 / 11:57
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My App does not load list of items

I have a App Xamarin.Forms that consumes two rest services. The first service, it consumes normally. But the second, I need to pass a parameter, it is not being consumed. I've tried it in many ways and it does not work. I know my c...
asked by 10.09.2017 / 23:27
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Create new instance every time you use NavigationPage in Xamarin Forms?

Suppose I have 3 screens in Xaml and I use MasterDetailPage and NavigationPage to navigate between these screens back and forth. Page A - > Page B - > Page C - > ... I use PushAsync to do the browsing. So good ... I've implemented...
asked by 02.12.2016 / 10:55
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How to create a login screen using Xamarin?

What is the best way to create a login screen using Xamarin Studio ? I would like to do a Cross-Platform project, but I wanted to see some examples of Login with c# and preferably using Xamarin .     
asked by 01.06.2015 / 15:16
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My notifications are not coming and I think my code may be correct

I made several attempts to send Push Notification and none of them I could see in my App. I always thought until now, that I was wrong. But I followed two step by step and I saw that with the guys it was working and not with me. So I started to...
asked by 27.09.2017 / 20:42
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Create popup with Rg.Plugins.Popup

Does anyone know of any tutorial to create popup in xamarin.forms using this plugin, Rg.Plugins.Popup? I need to create a popup and inside it a textbox or textarea with two buttons (Ok and Cancel).     
asked by 25.10.2017 / 11:53
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Save image to Xamarin Forms

How to save the image from BD to any folder in the project? I need to create a new folder or save the image to any folder inside the app so I can use it in View . My code: byte[] imageBytes; var FileImage = new Image(); imageBy...
asked by 07.12.2016 / 16:17