Building Flutter apps that use Tensorflow Lite

[maciejbrzezinski]

Hello, plugin that we use to communicate with Tensorflow Lite model is tflite_flutter
https://pub.dev/packages/tflite_flutter

To make it work, I have to put some files in the specific locations outside of the project:

Android
Place the script install.sh (Linux/Mac) or install.bat (Windows) at the root of your project.

Execute sh install.sh (Linux) / install.bat (Windows) at the root of your project to automatically download and place binaries at appropriate folders.

Note: The binaries installed will not include support for GpuDelegateV2 and NnApiDelegate however InterpreterOptions().useNnApiForAndroid can still be used.

Use sh install.sh -d (Linux) or install.bat -d (Windows) instead if you wish to use these GpuDelegateV2 and NnApiDelegate.

These scripts install pre-built binaries based on latest stable tensorflow release. For info about using other tensorflow versions follow instructions in wiki.

iOS
Download TensorFlowLiteC.framework. For building a custom version of tensorflow, follow instructions in wiki.
Place the TensorFlowLiteC.framework in the pub-cache folder of this package.
Pub-Cache folder location: (ref)

~/.pub-cache/hosted/pub.dartlang.org/tflite_flutter-/ios/ (Linux/ Mac)
%LOCALAPPDATA%\Pub\Cache\hosted\pub.dartlang.org\tflite_flutter-\ios\ (Windows)

Is there way to make it with CodeMagic?

[mohammedbabelly20]

Hello @maciejbrzezinski,

Yes, you can run shell scripts, move files, and download any files using the scripts section in the codemagic.yaml file.

Scripts specify what kind of application is built. This is where you can specify the commands to test, build, and code-sign your project. You can also run shell (sh) scripts directly in your .yaml file, or run scripts in other languages by defining the language with a shebang line or by launching a script file present in your repository.

That's from our docs.

[maciejbrzezinski]

Thanks and sorry for not looking onto the docs first 🤦‍♂️

Solution if anyone need that in the future - add a pre-build script:

flutter clean
dart pub cache add tflite_flutter --version "0.9.0"
dart pub cache repair
flutter pub get
sh install.sh
cd $HOME/.pub-cache/hosted/pub.dev/tflite_flutter-0.9.0/ios
wget https://github.com/am15h/tflite_flutter_plugin/releases/download/v0.5.0/TensorFlowLiteC.framework.zip
unzip TensorFlowLiteC.framework.zip
cd $HOME/clone/ios
pod install