Android

androidMain uses the Google LiteRT Android runtime. The current Core build configuration targets Android API 24 and above; its Android dependency supplies the runtime.

Provide a model file

The repository's Android device test copies the model from assets to an accessible file and passes its absolute path to LiteRTCompiler. For example, put the model in the application's src/main/assets/ and prepare a file:

import android.content.Context
import java.io.File

fun copyModel(context: Context): File {
    val modelFile = File(context.cacheDir, "CelsiusToFahrenheit.tflite")
    context.assets.open("CelsiusToFahrenheit.tflite").use { input ->
        modelFile.outputStream().use { output -> input.copyTo(output) }
    }
    return modelFile
}

File copying involves disk I/O; run it on an appropriate background dispatcher. Pass modelFile.absolutePath to the inference example.

LiteRTFileUtils belongs to the optional Tool module and does not need initialization when using Core alone.

Hardware and verification

CPU, GPU, and NPU selection is handled by Android LiteRT; actual capability depends on the device, model, and runtime. The repository has an on-device CPU test, but Core CI does not list it as an execution step; verify on your target device or emulator.

If initialization fails, check that the model exists, is readable, and is complete, then investigate device and accelerator compatibility.