Could not link assemblies. Reason: Object reference not set to an instance of...
I have a Xamarin.Forms solution, but after some cleaning & building I'm unable to compile my Xamarin.iOS project anymore. This project was recently migrated from PCL to a .NET Standard 1.6 project...
View ArticleHow do I add an event handler to a custom control
I'm implementing a custom checkbox control in my application. I've used the CheckboxImage control proposed by Ali Syed as a starting point in this forum post...
View ArticleAnimation Problem with Xamarin Forms
So I've added a small animation to one of my content pages so when the page loads one of the buttons beats for a second. I have used the code below : protected override async void OnAppearing() {...
View ArticleDoes anybody know if is only possible use List string with XfxComboBox ?
I need to use a object list.
View ArticleAnyone know an alternative to TintedImage nuget (now that it is no longer...
https://github.com/shrutinambiar/xamarin-forms-tinted-image According to the site this nuget project is no longer maintained. Such a shame since it is a really handy thing. I was just wondering if...
View Article[You need to increase the $(TargetFrameworkVersion) for your project] warning
After upgrading Visual Studio 2017 to version 15.8, my android project is getting the following warning: The $(TargetFrameworkVersion) for App3.Android.dll (v9.0) is greater than the...
View ArticleThe LinkAssemblies task failed unexpectedly.- Xamarin.Forms (Android)
I have one project in xamarin forms with following configurations: Xamarin Forms Version: 2.3.3.193 Compile using Android version: version 15 or above whatever Minimum Android version: Use Compile...
View ArticleXamarin.Forms CardsView nuget package
Hi all) I've released new package for Xamarin.Forms (Something like Tinder's CardsView) Maybe, someone will be interested in it nuget.org/packages/CardsView/ -- nuget...
View ArticleWhen I Try to Create a Custom ViewCell I Get an Error?
Hi. I need to create a Custom VewCell so that i can reuse the code within it multiple times. but i get these erros : Error CS0234 The type or namespace name 'DateCell' does not exist in the namespace...
View ArticleHow to Attach Debugger to a Running Android or IOS app?
I often start an app just to see how it works, then I decide to debug, so I just attach to its process and debugging kicks in. But I am not able to find how to attach to a running Xamarin Forms app...
View Articleerror : Failed to resolve assembly: 'System, Version=0.0.0.0,...
I have a PCL Net Standard 1.6 based multi-project solution. It built ok until I decided to add a xaml based ContentPage. Now it just tells me when compiling the PCL: error : Failed to resolve assembly:...
View ArticleSystem.ObjectDisposedException: Can't access disposed object. Object name:...
Here is the stack trace System.ObjectDisposedException: Cannot access a disposed object. Object name: 'Android.Graphics.Bitmap'. at Java.Interop.JniPeerMembers.AssertSelf (Java.Interop.IJavaPeerable...
View ArticleCustom controls and EventHandler
Hi all, I'm working with Forms and I have to create a custom view to display a side menu button item. I have this structure: XAML View: - SideMenuView.xaml - SideMenuItemView.xaml Code Behind class: -...
View ArticleGet Phone number in Xamarin.Forms
Can you please assist me with information how can i get the device with sim card phone number on Xamarin.Forma? I have read this is possible on Xamarin.Android...
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Device.GetAssemblies
I'm trying to do some stuff with reflection, but in order to make it practical I really need to be able to list all of the loaded assemblies. After failing to find a way to get that list in a PCL it...
View ArticleEntry.Focus() Not Working For Android
Hello, Currently, I am using this setup to set focus to an Entry: protected override void OnAppearing() { base.OnAppearing(); Entry emailEntry = this.FindByName<Entry>("emailEntry");...
View ArticleDevice.StartTimer returns false but still goes back into the timer
I don't get what's going on, I return a false value to stop the timer, but in my if statement if I add the "count == 2", then the time still goes, regardless of the fact that I returned a false value!...
View ArticleOverride volume and silent mode on iOS and Android
Hi, I would like to override selected volume and silent mode (if selected) on iOS and Android while playing sound notifications, but only for my app. This means that I might want to: Get current volume...
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