5,380 questions with Developer technologies | .NET | Xamarin tags
What changes I would need to release Application for Android 16KB in Xamarin.Android?
Hi, in order to meet the "Android 16 KB Memory Page Requirement", is it mandatory to move the app from Xamarin to MAUI or is there any way to do it in Xamarin? Many thanks. Regards.
Developer technologies | .NET | Xamarin
Xamarin Android error during Release compilation. XALNK7001: System.NullReferenceException at MonoDroid.Tuner.AddKeepAlivesStep.AddKeepAlives
I've an Android app that compiles and runs in Debug mode. When I set it to Release mode, I receive following error during compilation: XALNK7001: System.NullReferenceException: Object reference not set to an instance of an object. at…
Developer technologies | .NET | Xamarin
Developer technologies | Visual Studio | Other
What shall I do for making my Xamarin project to be complaint with the new 16KB Google Play Rulec?
We were asked to update our mobile app to be compliant with the new google play rule to support 16kb. However, our app is still on Xamarin and it was end of support last year. To make sure that we are still be able to release new version in the future,…
Developer technologies | .NET | Xamarin
XAMARIN SPEECH RECOGNITION API
There is an API whose package name is android.speech in Android SDK. It converts speech to text through preinstalled Google application in Android phones. I wonder whether Xamarin Forms SDK has an API counterpart of android.speech or not.
Developer technologies | .NET | Xamarin
Best obfuscators for C# mobile apps
I may have been confused among which of the following programming languages should I learn on my own: C#, C++, Java, JavaScript, CSS, and XML. JavaScript, CSS, and XML are used for web authoring markup language purposes. C# and Java - well - it is a…
Developer technologies | .NET | Xamarin
Developer technologies | C#
Xamarin.Forms Android failing after publishing to GooglePlay
0 I have published an Xamarin.Forms Android application into GooglePlay. Unforutnealy for some of users application crashes at startup. I have found the phone which is failing however when I run the app from VisualStudio the application is running…
Developer technologies | .NET | Xamarin
Request permission to use background data and battery management in Xamarin Android
In my Xamarin Android project I have to request permissions to use data in the background and not limit the use of the battery for background activities, the request works on many devices but on Oppo it doesn't work. I would like to allow foreground…
Developer technologies | .NET | Xamarin
Huawei mobile service and app gallery
I have published new app, I don't use any of google services such as maps or push notification, or authentication ...etc., the app functionality is simple and depend on our own business data. I used Huawei Y9 EMUI version 9.1.0, and 10.0.0 ,I found the…
Developer technologies | .NET | Xamarin
How to implement "In-App update" without depending on API in Xamarin
How ca we achieve "In-App" update in Xamarin without using API. If is there any specific naught package or solution to implement the same then, please let me know. My app is uploaded on Playstore and I want to show app update pop up in my…
Developer technologies | .NET | Xamarin
Control for pull stories with images/videos for social media
Hi, I am currently developing an app where user can post stories with images and videos like Instagram/FB. Currently I am using WebView in carousal view to show the images/videos in one control but it is not able to run well. I am getting some…
Developer technologies | .NET | Xamarin
To Bundle or .apk? Android app
Hello, I'm going through the throws of releasing first build to the Google Play Store. Up to now I've always built to .apk and deployed to test devices. The .apk is signed with my own .snk and .keystore The app is also obfuscated. All runs on…
Developer technologies | .NET | Xamarin
Cannot create file in "/storage/emulated/0/Documents" with Target SDK Android 11 (API 30)
Hi, I am not able to create any file using "System.IO.File.Create" API at following location with my app targeted to Android 11 ( Target SDK API 30). /storage/emulated/0/Documents The API which I use in my application to get above path…
Developer technologies | .NET | Xamarin
Connect to WiFi access point without password in Android 10
Hello, tell me how to programmatically connect to an WiFI access point without a password in Android 10? I tried several ways with stackoverflow not working. P.S. Xamarin Forms 5
Developer technologies | .NET | Xamarin
Missing APKs for [ABI] dimensions in the module 'base' for the provided device.
I am developing with Xamarin Forms and VS 2022. Recently, when trying to test on an Android emulator I've been getting the error message: Missing APKs for [ABI] dimensions in the module 'base' for the provided device. Doing a search brought no useful…
Developer technologies | .NET | Xamarin
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…
Developer technologies | .NET | Xamarin
.NET MAUI Migration from Xamarin.forms
Hi, as a result of migrating from xamarin to .NET MAUI, using the migration tool “Upgrade Assistant” provided by microsoft, I have resolved the various errors related to solution compilation. The code compiles correctly and even manages to emulate on…
Developer technologies | .NET | Xamarin
Developer technologies | .NET | .NET MAUI
Developer technologies | .NET | Other
How to resolve Xamarin.Forms crash when navigating between pages on Android?
I'm experiencing an issue in a Xamarin.Forms app where the app crashes when navigating between two pages, but only on Android devices. The crash log mentions an ObjectDisposedException related to a renderer. I suspect it has something to do with the way…
Developer technologies | .NET | Xamarin
How to Upload a Xamarin IPA to App Store with Xcode 16.3 on macOS 15.4.1?"
Following the resolution of a recent production issue, I attempted to build the IPA on a Mac that was just updated to the latest macOS version(15.4.1). and Xcode version from 15.5 to 16.3. This update is necessary because, starting May 1st, 2025, all…
Developer technologies | .NET | Xamarin
Request for Support: iOS Native Development Continuity with .NET 9 (MAUI)
Dear Microsoft Team, We are reaching out to seek your guidance and support regarding a critical blocker we are facing in our iOS development workflow with .NET MAUI. Current Challenge Our mobile application is being developed using .NET MAUI and…
Developer technologies | .NET | Xamarin
Update .Net8-Android api 35 to .Net9-Android api 35
Right now, I’m using .NET 8 for Android with API level 35. I want to upgrade to .NET 9 for Android (still using API 35). What is the best practice to do this?