App Maui .net 9.0. How configure project to create apk file for tablet 32bit armeabi-7a/armeabi?

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Summary

The issue at hand is configuring a.NET 9.0 Maui project to create an APK file for a 32-bit ARM tablet (armeabi-7a/armeabi). The goal is to ensure the application is correctly downloaded and runs on the specified tablet.

Root Cause

The root cause of the issue lies in the RuntimeIdentifiers and AndroidSupportedAbis settings in the csproj file. The current configuration includes android-arm;android-arm64;android-x64 as RuntimeIdentifiers, which may not be suitable for the target 32-bit ARM tablet.

Why This Happens in Real Systems

This issue occurs in real systems due to:

  • Incompatible architecture: The application is built for architectures that are not supported by the target device.
  • Insufficient configuration: The csproj file does not specify the correct AndroidSupportedAbis for the target device.
  • Default settings: The default settings in the csproj file may not be suitable for all devices, especially older ones with specific architecture requirements.

Real-World Impact

The impact of this issue includes:

  • Failed deployment: The application may not deploy correctly to the target device.
  • Crashes or errors: The application may crash or exhibit errors when run on the target device.
  • Incompatibility issues: The application may not be compatible with the target device’s architecture or Android version.

Example or Code

To resolve the issue, update the csproj file to include the correct AndroidSupportedAbis and RuntimeIdentifiers. For example:


  armeabi-v7a;armeabi
  false
  false

And update the RuntimeIdentifiers to include android-arm:

android-arm;android-arm64;android-x64

How Senior Engineers Fix It

Senior engineers fix this issue by:

  • Verifying device specifications: Ensuring they understand the target device’s architecture, Android version, and other relevant details.
  • Updating csproj settings: Modifying the AndroidSupportedAbis and RuntimeIdentifiers to match the target device’s requirements.
  • Testing and validation: Thoroughly testing the application on the target device to ensure compatibility and resolve any issues that arise.

Why Juniors Miss It

Junior engineers may miss this issue due to:

  • Lack of experience: Inadequate experience with configuring.NET Maui projects for specific device architectures.
  • Insufficient knowledge: Limited understanding of the AndroidSupportedAbis and RuntimeIdentifiers settings and their impact on application deployment.
  • Overreliance on default settings: Failing to review and update the default settings in the csproj file to ensure compatibility with the target device.