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UWP and SerialCommunication: await DeviceInformation.FindAllAsync(aqs) won't...
Hello! I am writing(for work) a library for multiple platforms: .NET Framework, .NET Core and Xamarin.Forms(UWP/Android/iOS) to connect a serialdevice. To get an overall compatibility i created an...
View ArticleFirebaseApp is not initialized on real devices
Hello! I'm trying to add push notifications in Xamarin.Forms. On Genymotion it's work fine but on real devices i have an error: Default FirebaseApp is not initialized.Make shure to call...
View ArticleDuplicate 'EmbeddedResource' items were included after migrate to .NET Standard?
Hi, Using VS 2017 15.4.0 Following James Montemagno "Upgrading to Xamarin.Forms to .NET Standard"...
View ArticleNull reference exception in production at...
I am facing null reference exception in production at but not able to reproduce in dev. I am not getting any idea where is this coming from. Have anybody faced this? The whole stack trace is below:...
View ArticleHow to access both Photo and video feature from Camera Media Plugin in...
How to access both Photo and video feature simultaneously from Camera Media Plugin in Xamarin.Forms? Example: Pressing camera would open the camera, but there would be the ability to swipe to select...
View ArticleWhy Glyph property in FontImageSource doesn't bind?
Hi community. I have a strange behavior with FontImageSource. I can't get property binded to Glyph. <ContentPage.BindingContext> <documents:DocumentListViewModel />...
View Articleis it possible to implement NFC in xamarin forms?
I have been trying with sample plugin but i am not able to figure out how to implement NFC read/Write for Android/iOS using a plugin.if it is possible share some sample code which would help me
View ArticleHow to vertically center an item in a grid cell?
I have a ListView item template that contains a grid with 3 columns: an image, a label and another image. All items are have their VerticalOptions set to LayoutOptions.Center. However, the list...
View Articlebest approach to handle dark theme?
I'm working on an app for UWP, Android, and iOS using Xamarin.Forms. I just started testing on my iPhone 8 which is set to dark mode and noticed that text in the ListView controls is not visible. The...
View ArticleHow to setup bindingcontext in xaml?
Hello, I usualy setup the binding in the view in this way: _viewModel = new UserPageViewModel(mgr); BindingContext = _viewModel; What is the same command in the xaml? The following is not working: Can...
View ArticleHow can i make a game in unity and run the game when i run xamarin.forms...
Hi, I just came xamarin crash I want to make a game project that should be called from unity, how can I do it, help guide me
View ArticleRemove gap between cells in ListView
Hi, We are having a problem with gaps between cells in a ListView. We set SeparatorVisibility="None" but still there are a 1-pixel high gap in some cases. On iOS is seems to be connected with the...
View ArticleCan any one please can help me with my problem with BindingContext?
Hi, everyone I need help for my problem. I am trying to bind the context from the viewmodel like this <ContentPage.BindingContext> <viewModels:BLEConncetViewModel/>...
View ArticleShare from Xamarin Essentials mysteriously quit working after updates, but...
I updated my iPad to 13.2, updated to latest XCode on my mac, updated VS, updated to XF 4.3. I know, not smart. Everything appeared to work, until I tried the SHARE function of my app on iPad. The...
View ArticleError using MySql connector with Xamarin
Hi, I am trying to use MySql plugin in Xamarin project. I have added the pliugin to all my PCL projects and the used: sql_connection = new MySqlConnection("Server=mysql.mydomain.com; Database=mydb;...
View ArticleHow to prevent multiple clicks on a button?
I know there are many ways to prevent multiple clicks on a button in Xamarin, but is there a single solution to prevent it globally? i.e. in every button in my app. Otherwise, what would be the best...
View ArticleOneSignal HandleNotificationOpened redirect the diffirent page
Hello in my project I use OneSignal for notifications. How can I redirect the different page from droid or ios project. I used passing parameter to LoadApplication(new App(bool...
View Articlehow to do smooth scrolling in collectionview on android and ios
Hi, My app has some Collectionview. Items binded when scrolling down but when items bind and scrolling collectionview is jittering on android and iOS. How to do smooth scrolling in collectionview....
View ArticleBinding Mode property default value
I'm seeing documentation about XAML, bindings and MVVM. The documentation about BindingMode says that: OneWay: Indicates that the binding should only propagates changes from source (usually the View...
View ArticleGet counrty code picker or popup
Hello guy's my question is , that is there any plugin for get all country code for telephone in xamarin forms. i'm surfing in google and get one thing CCP (country code picker ) for native android but...
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