5,381 questions with Developer technologies | .NET | Xamarin tags
Theme.MaterialComponents.Light.NoActionBar Causes Visual Studio 2022 to Ignore My Styles in Designer
I am attempting to add a com.google.android.material.slider.Slider to my Xamarin.Android app. This forced me to change my AppTheme is styles.xml to Theme.MaterialComponents.Light.NoActionBar instead of Theme.Design.NoActionBar. Doing this caused the…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Developer technologies | C#
Visual Studio 2022 Xamarin Forms UWP Create App Package Error: Task 'SignAppxPackage' failed. The application has failed to start because its side-by-side configuration is incorrect.
I am trying to create an app package (for my Xamarin Forms UWP app) to upload to the windows store. I am using Microsoft Visual Studio Professional 2022 (ARM 64-bit) Version 17.8.3. In Visual Studio, I right-click on the UWP project -> Publish ->…
Developer technologies | .NET | Xamarin
Customizing Layout / Position of RadioButton Without RadioButtonGroup
I want the layout of my app to have several RadioButton(s) that are arranged in very unusual ways, there are other View(s) in the layout that make RadioButtonGroup inappropriate because it would contain many other View(s) and be hard to layout. I am…
Developer technologies | .NET | Xamarin
Developer technologies | C#
Xamarin/MAUI iOS Local Push Connectivity
I have the local push entitlement from apple and also a separate bundle id for a new local push extension. I am project referencing this extension project from my main iOS .csproj and setting these flags: …
Developer technologies | .NET | Xamarin
Measuring A Slider Inside A Custom View Inheriting From GridLayout
I have a Custom View that inherits from GridLayout. The xml layout file is as follows: <?xml version="1.0" encoding="utf-8"?> <GridLayout xmlns:android="http://schemas.android.com/apk/res/android"…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Measuring A Slider Inside A Custom View Inheriting From GridLayout
I have a Custom View that inherits from GridLayout. The xml layout file is as follows: <?xml version="1.0" encoding="utf-8"?> <GridLayout xmlns:android="http://schemas.android.com/apk/res/android"…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Developer technologies | C#
Previewing Xamarin.Android ScrollView Content In Visual Studio 2022 Designer
I have a Xamarin.Android app that contains a ScrollView. Everything functions perfectly, but because there is obviously more content than fits on the screen (which is, of course, why I am using a ScrollView), it is not all visible in the Visual Studio…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Developer technologies | Visual Studio | Other
Xamarin Forms / API Level 34 / Deployment Failed
While migrating the mobile app to some new tech, we need to deploy an update to our current app which requires Android 14. I've updated the AndroidManifest.xml to 34: <uses-sdk android:minSdkVersion="28"…
Developer technologies | .NET | Xamarin
Centering a VectorDrawable in a RecyclerView ViewHolder
I have a Xamarin.Android app that contains a RecyclerView, which uses a ViewHolder whose root element is a GridLayout. I have a VectorDrawable (a .xml file in my drawable folder) that I want to center in the ViewHolder. I have tried doing this several…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Slider vs SeekBar on Xamarin.Android in Visual Studio 2022
I am working on adding a Slider or SeekBar to a Xamarin.Android app. There are 2 scenarios in which I will be using this. The first one is just a simple standard select a value from x to y scenario. The second scenario is more unique, although I have…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | Other
Developer technologies | Visual Studio | Other
Lower the 'Deployment Target' to see older simulators or check your Apple SDK path warning after update
I can't run my Xamarin Forms application on Mac in the simulator, writes: Lower the 'Deployment Target' to see older simulators or check your Apple SDK path warning after update
Developer technologies | .NET | Xamarin
Developer technologies | Visual Studio | Debugging
Xamarin ios push notification not working
I have a problem with push notifications on a xamarin project situation: I have a working xamarin android / ios code with bundle id com.xxxx.abc. I have to republish the same app with a different brand, I created a new plist, new registration on…
Developer technologies | .NET | Xamarin
How to add google tag manager in Xamarin forms app
I want to integrate Google Tag Manager into our existing Xamarin.Forms app, which is developed using the .NET Standard 2.1 framework. This integration will enable us to manage and deploy marketing tags and tracking scripts more efficiently without…
Developer technologies | .NET | Xamarin
Adding Ticks & Labels To A com.google.android.material.slider.Slider
I currently have a com.google.android.material.slider.Slider using the following code and creates the following screenshot: <com.google.android.material.slider.Slider android:id="@+id/sldPlayersPerTeam" …
Developer technologies | .NET | Xamarin
FCM V1 notifications are not delivered from Azure Notification Hub
I am following this Microsoft Guide to migrate from GCM/FCM notifications to FCM v1. From the guide, I - Configured the Firebase Service Account Credentials in Azure Notification Hub Updaeted backend and app (Xamarin) to use FCM v1 platform during…
Azure Notification Hubs
Developer technologies | .NET | Xamarin
OnAppearing does not get executed in Shell in Xamarin.forms
OnAppearing method does not get executed public partial class AppShell : Shell { public AppShell() { InitializeComponent(); } protected override void OnAppearing() { …
Developer technologies | .NET | Xamarin
Working with focused items displayed in a CollectionView
I have a Xamarin project with a form which displays object instances stored in an ObservableCollection. The ObservableCollection items are displayed in a CollectionView. Each item contains its own Picker and Entry controls. My problem is, I need to…
Developer technologies | .NET | Xamarin

How to log in with HTTP POST protocol first and then show the homepage with "WebView" package?
How to log in with HTTP POST protocol first and then show the homepage with "WebView" package? The website needs to log in with HTTP POST protocol first, and then the web will be directed to its homepage. The code shows me logging in…
Developer technologies | .NET | Xamarin
Developer technologies | C#
I have an application in Xamarin Forms and it stopped working on iPhones that updated to iOS 18.0
I have an application in Xamarin Forms and it stopped working on iPhones that updated to iOS 18.0 The first time I compile the application it works normally, but if I finish it and open it again, it crashes and becomes practically inoperative. I develop…
Developer technologies | .NET | Xamarin
Developer technologies | Visual Studio | Other
crc643f46942d9dd1fff9.FormsAppCompatActivity.n_onStart java.lang.IllegalStateException
need help. I don't know why my app isn't working or force close. I use Xamarin.Forms 5.0.0.2012 with the following error: crc643f46942d9dd1fff9.FormsAppCompatActivity.n_onStart java.lang.IllegalStateException Stack trace: Type…