makorowy

private const val REQUEST_PERMISSIONS = 1
private const val REQUEST_TAKE_PICTURE = 2

class MainActivity : AppCompatActivity() {

    private var photoFilePath = ""

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

makorowy

object UriHelper {

    fun getUriFromFilePath(context: Context, filePath: String): Uri {
        val file = File(filePath)
        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            FileProvider.getUriForFile(
                    context,
                    context.applicationContext.packageName + ".uri",
                    file)
        } else {

makorowy

class MainActivity : AppCompatActivity() {

    private lateinit var classifier: Classifier
    //other properties

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        checkPermissions()

makorowy

interface Classifier {
    fun recognizeImage(bitmap: Bitmap): Result
}

makorowy

data class Result(val result: String, val confidence: Float)

makorowy

const val GRAPH_FILE_PATH = "file:///android_asset/graph.pb"
const val LABELS_FILE_PATH = "file:///android_asset/labels.txt"

const val GRAPH_INPUT_NAME = "input"
const val GRAPH_OUTPUT_NAME = "final_result"

const val IMAGE_SIZE = 224

makorowy

class MainActivity : AppCompatActivity {
    
    //...
    private val handler = Handler()
    private var photoFilePath = ""
    
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        val file = File(photoFilePath)
        if (requestCode == REQUEST_TAKE_PICTURE && file.exists()) {
            classifyPhoto(file)

makorowy

object ImageClassifierFactory {

    fun create(
            assetManager: AssetManager,
            graphFilePath: String,
            labelsFilePath: String,
            imageSize: Int,
            inputName: String,
            outputName: String
    ): Classifier {

makorowy

private const val ENABLE_LOG_STATS = false

class ImageClassifier (
        private val inputName: String,
        private val outputName: String,
        private val imageSize: Long,
        private val labels: List<String>,
        private val imageBitmapPixels: IntArray,
        private val imageNormalizedPixels: FloatArray,
        private val results: FloatArray,

makorowy

class MainActivity : AppCompatActivity {
    
    //...
    
    private fun classifyAndShowResult(croppedBitmap: Bitmap) {
        runInBackground(
                Runnable {
                    val result = classifier.recognizeImage(croppedBitmap)
                    showResult(result)
                })