5,380 questions with Developer technologies | .NET | Xamarin tags

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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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-10-10T11:33:29.5966667+00:00
Juan Antonio Ortega 5 Reputation points
commented 2025-10-20T02:05:12.3633333+00:00
Starry Night 600 Reputation points
1 answer

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 | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
Developer technologies | Visual Studio | Other
Developer technologies | Visual Studio | Other
A family of Microsoft suites of integrated development tools for building applications for Windows, the web, mobile devices and many other platforms. Miscellaneous topics that do not fit into specific categories.
5,524 questions
asked 2022-09-24T09:13:39.253+00:00
Bado-dev 1 Reputation point
answered 2025-10-16T11:33:03.47+00:00
Vlad 0 Reputation points
3 answers One of the answers was accepted by the question author.

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-10-14T14:56:54.8533333+00:00
Xuan Peng 20 Reputation points
accepted 2025-10-15T15:29:34.1933333+00:00
Xuan Peng 20 Reputation points
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-04-30T12:44:43.4266667+00:00
MOON 60 Reputation points
commented 2025-10-11T11:52:20.91+00:00
MOON 60 Reputation points
2 answers

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 | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
Developer technologies | C#
Developer technologies | C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
11,651 questions
asked 2022-02-07T00:24:00.023+00:00
John 511 Reputation points
answered 2025-09-26T16:30:23.41+00:00
Bruce (SqlWork.com) 81,191 Reputation points Volunteer Moderator
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2022-03-03T15:02:29.933+00:00
Mieszko Misztal 1 Reputation point
commented 2025-09-25T17:48:13.51+00:00
harie sunza 0 Reputation points
2 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2023-10-21T09:13:19.9666667+00:00
Jcdv Del Vecchio 0 Reputation points
answered 2025-09-25T15:16:54.7933333+00:00
Jcdv Del Vecchio 0 Reputation points
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2021-07-26T08:51:33.427+00:00
Strange Mood 1 Reputation point
commented 2025-09-25T09:45:12.8+00:00
Gade Harika (INFOSYS LIMITED) 1,185 Reputation points Microsoft External Staff
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2023-05-23T04:57:29.74+00:00
Mohd Habibul Bashar 0 Reputation points
answered 2025-09-25T06:48:02.7033333+00:00
Sheeraz Ali 170 Reputation points
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2021-05-24T11:12:28.103+00:00
Ajay Tyagi 1 Reputation point
answered 2025-09-15T14:42:10.4933333+00:00
seo Blogs 0 Reputation points
2 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2020-12-03T14:29:57.057+00:00
LMiles 21 Reputation points
commented 2025-09-14T21:49:29.1633333+00:00
harie sunza 0 Reputation points
4 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2021-03-04T16:08:45.977+00:00
Muffadal Khopoliwala 31 Reputation points
answered 2025-09-13T16:07:48.9766667+00:00
Hậu Trung 0 Reputation points
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2021-02-05T08:34:33.143+00:00
Aleksey Mayboroda 1 Reputation point
commented 2025-08-13T10:10:25.4233333+00:00
Precious Martin 0 Reputation points
3 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2021-12-09T16:56:26.51+00:00
WillAutioItrax 211 Reputation points
answered 2025-07-29T09:25:40.98+00:00
Tomasz Bąk 0 Reputation points
0 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2024-09-12T08:59:35.4533333+00:00
dimas kursiana 0 Reputation points
commented 2025-08-08T22:58:38.7066667+00:00
Fuahad She shurafa 0 Reputation points
0 answers

.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 | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
Developer technologies | .NET | .NET MAUI
Developer technologies | .NET | Other
Developer technologies | .NET | Other
Microsoft Technologies based on the .NET software framework. Miscellaneous topics that do not fit into specific categories.
4,130 questions
asked 2025-01-09T16:13:59.0733333+00:00
Mattia Pisilli 0 Reputation points
commented 2025-08-26T06:52:56.6+00:00
Tony Dinh (WICLOUD CORPORATION) 3,585 Reputation points Microsoft External Staff
0 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-05-09T13:17:11.1833333+00:00
Muhammad Amiruddin Latief 0 Reputation points
commented 2025-07-29T06:20:22.39+00:00
Starry Night 600 Reputation points
2 answers

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-05-11T11:16:37.98+00:00
developer xamarin maui 0 Reputation points
edited an answer 2025-07-18T09:00:11.52+00:00
Starry Night 600 Reputation points
1 answer

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
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-07-03T10:28:30.52+00:00
Hirak Desai 0 Reputation points
answered 2025-07-18T03:03:00.3466667+00:00
Bruce (SqlWork.com) 81,191 Reputation points Volunteer Moderator
1 answer

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?

Developer technologies | .NET | Xamarin
Developer technologies | .NET | Xamarin
A Microsoft framework for building cross-platform mobile apps using .NET and C# with native performance and user interfaces.
5,380 questions
asked 2025-07-24T10:31:44.5866667+00:00
Fadlan Amrullah 0 Reputation points
answered 2025-07-28T03:08:53.05+00:00
Starry Night 600 Reputation points