Error during opening designer
I,m facing an unexpected error while i want to open designer for creating layout using xaml , and i,m working on cross-platform(xamarin.forms) app using visual studio 2017 .... designer opening fail....
View ArticleListView inside ListView Exception
Hi, I am working on listview inside listview. In iOS it's working fine. But facing problem with android. When scroll up/down crash the application Error is : Unable to activate instance of type...
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Using ReactiveUI with Master/Detail
Hey there, Has anyone got a comprehensive example of a Master / Detail page with ReactiveUI? I´m especially looking for a guide how to navigate between detail pages
View ArticleHow dinamically set property in xaml
Hi, is there any way to set the color of a label by the xaml? The text property is already binded to a variable, and i'ld like to set the color as: if(int.parse(text)< 0) ValueColor=Color.Red; else...
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Building Release Version Fails (The "LinkAssemblies" task failed unexpectedly.)
After adding XLabs' NuGet packages (Core, Platform, Serialization, IoC, Forms, and Forms.Charting), I have been getting the following error when I try to build a release version: C:\Program Files...
View ArticlePre-load images onto DataTemplate
Hello, everyone: Another question about binding. Lately, I could figure it out how to put an image in a normal page while I wait an answer from the server to know if an image exist or not: I made a...
View ArticleNew Prescribed MvvmCross Xamarin Forms installation fails.
Having followed the Xamarin University video, and then the MvvMCross prescribed setup method to create a Xamarin.Forms project with MvvmCross V5, both methods fail at the same spot: Both methods...
View ArticlePublish an Image on Facebook
Hello, How to publish an image (SKBitmap from SkiaSharp), on the wall of the mobile user ? Do you have samples ? Thank you, Christophe
View ArticleHow to clear ListView
Hi, I have latest version of xamarin forms installed 2.3.4.247. What I want is to clear my listview and repopulate it. Kind of like refresh. But currently, the list view stays same once loaded.
View ArticleContribute to the Xamarin Forms Toolkit
Hi, i just started a open source project with the aim to fill the gap for some missing controls on Xamarin Forms, as well as providing to the community helpers/services to help cross platform...
View ArticleListview inside Listview causing exception: for android.
I have a parent list and child list, for ios listview inside listview is fine , but for android it throws an exception System.NotSupportedException : Unable to activate instance...
View ArticleSet an app icon in the oncreate method
Hello, I would like to set my app icon based on an action which occurs in my oncreate method. It should work something like this pseudo code: if(Userlicence == other) Icon = othericon Icon =...
View ArticleRelease build gives error "The ResolveLibraryProjectImports task failed...
When doing the release build of an Android head in my Xamarin Forms project I keep getting this error. How can I find out more information on what is causing they error? I saw some people say it was a...
View ArticleMR.Gestures handles ALL touch gestures
With MR.Gestures you can handle the Tapping, Tapped, DoupleTapped, LongPressing, LongPressed, Panning, Panned, Swiped, Pinching, Pinched, Rotating and Rotated gestures on all layouts, cells, views and...
View ArticleChange Android ActionBar Color
Hello, assumed due to uncertainity by poor documentation, the dark grey bar appearing on Android when pressing a ListViewItem ViewCell (ContextActions) is the ActionBar, how do I Change the Color?...
View ArticleHow to change ContextActions MenuItem color?
Hello, I have this XAML: <ViewCell.ContextActions> < MenuItem Text="Löschen" Command="{Binding RemoveUserTimerCommand}" IsDestructive="True"/> < MenuItem Text="Sync" Command="{Binding...
View ArticleSystem.NotImplementedException for plugin.settings.
I have installed plugin.settings (version 3.0.1) in PCL, iOS and Droid projects. For iOS its working fine but for android its throwing - System.NotImplementedException: This functionality is not...
View ArticleIs it possible to add a banner advertising to my xamarin.forms app?
I could not find a solution for banner implementation. The api from admob does not work for windows phone or uwp. Also i can not add a banner via admob or anything with the pcl project. The banner will...
View ArticleNavigationPage.SetTitleIcon is not working on Android with...
I am using Xamarin.Forms 2.3.0.107 (I think) and I'm trying to set an icon or image into the navigation bar like We have already on iOS. But it seems SetTitleIcon is not working or either ignoring this...
View Article[UWP] Excep_FromHResult 0x8007007E
Hello, I'm having troubles to deploy my app on some UWP devices. It works as it should on computers that have Visual Studio installed on it but fails on the other ones. What I did : I turned "Dev mode"...
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