Как распознавание в Котлине, проблема с клиентом - PullRequest
Новая
       17

Как распознавание в Котлине, проблема с клиентом

0 голосов
/ 22 января 2019

Я пробую API Rekognition из aws в моем новом Android-приложении в kotlin, но когда я пытаюсь создать клиент, мое приложение вылетает.Я положил файл JSON в сырой папке.Это мой код: 

 private var credentialsProvider: AWSCredentialsProvider? = null
private var awsConfiguration: AWSConfiguration? = null

//==============================================================================================
// Activity Methods
//==============================================================================================

/**
 * Initializes the UI and initiates the creation of a face detector.
 */
public override fun onCreate(icicle: Bundle?) {
    super.onCreate(icicle)
    setContentView(R.layout.main)

    AWSMobileClient.getInstance().initialize(this) {
        credentialsProvider = AWSMobileClient.getInstance().credentialsProvider
        awsConfiguration = AWSMobileClient.getInstance().configuration
        Log.d(TAG, "AWSMobileClient is initialized")
        setCollectionImage()
    }.execute()
}
private fun getBitmapFromAsset(strName: String): Bitmap? {
    val assetManager = this.assets
    val istr: InputStream
    var bitmap: Bitmap? = null
    try {
        istr = assetManager.open(strName)
        bitmap = BitmapFactory.decodeStream(istr)
    } catch (e: IOException) {
    }
    return bitmap
}

private fun getBytesFromBitmap(bitmap: Bitmap?): ByteArray {
    val stream = ByteArrayOutputStream()
    bitmap!!.compress(Bitmap.CompressFormat.JPEG, 70, stream)
    return stream.toByteArray()
}

private fun setCollectionImage() {
    val rekognitionClient = AmazonRekognitionClient(credentialsProvider!!.credentials)
    //val client = AmazonRekognitionClient(credentialsProvider!!.credentials)
    val pictureByteArray = getBytesFromBitmap(getBitmapFromAsset("IMG_20180611_125536.jpg"))

    val collectionId = "ConstanceID"
    val imageByteBuffer = ByteBuffer.wrap(pictureByteArray)
    val personName = "Constance" // nom de la personne qu'on souhaite sauvegarder
    val request = IndexFacesRequest()
            .withCollectionId(collectionId)
            .withExternalImageId(personName)
            .withImage(Image().withBytes(imageByteBuffer))
    val result = rekognitionClient.indexFaces(request)
    val recorded = result.faceRecords.isEmpty().not()
}
...