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package com.kimani.ktflite | |
import android.app.Dialog | |
import android.graphics.Bitmap | |
import android.os.Bundle | |
import android.support.v7.app.AppCompatActivity | |
import android.text.method.ScrollingMovementMethod | |
import android.view.LayoutInflater | |
import android.view.View | |
import android.view.Window | |
import android.widget.Button | |
import android.widget.ImageView | |
import android.widget.TextView | |
import com.wonderkiln.camerakit.* | |
import java.util.concurrent.Executors | |
class AppActivity : AppCompatActivity() { | |
lateinit var classifier: Classifier | |
private val executor = Executors.newSingleThreadExecutor() | |
lateinit var textViewResult: TextView | |
lateinit var btnDetectObject: Button | |
lateinit var btnToggleCamera:Button | |
lateinit var imageViewResult: ImageView | |
lateinit var cameraView: CameraView | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContentView(R.layout.activity_main) | |
cameraView = findViewById(R.id.cameraView) | |
imageViewResult = findViewById<ImageView>(R.id.imageViewResult) | |
textViewResult = findViewById(R.id.textViewResult) | |
textViewResult.movementMethod = ScrollingMovementMethod() | |
btnToggleCamera = findViewById(R.id.btnToggleCamera) | |
btnDetectObject = findViewById(R.id.btnDetectObject) | |
val resultDialog = Dialog(this) | |
val customProgressView = LayoutInflater.from(this).inflate(R.layout.result_dialog_layout, null) | |
resultDialog.setCancelable(false) | |
resultDialog.requestWindowFeature(Window.FEATURE_NO_TITLE) | |
resultDialog.setContentView(customProgressView) | |
val ivImageResult = customProgressView.findViewById<ImageView>(R.id.iViewResult) | |
val tvLoadingText = customProgressView.findViewById<TextView>(R.id.tvLoadingRecognition) | |
val tvTextResults = customProgressView.findViewById<TextView>(R.id.tvResult) | |
// The Loader Holder is used due to a bug in the Avi Loader library | |
val aviLoaderHolder = customProgressView.findViewById<View>(R.id.aviLoaderHolderView) | |
cameraView.addCameraKitListener(object : CameraKitEventListener { | |
override fun onEvent(cameraKitEvent: CameraKitEvent) { } | |
override fun onError(cameraKitError: CameraKitError) { } | |
override fun onImage(cameraKitImage: CameraKitImage) { | |
var bitmap = cameraKitImage.bitmap | |
bitmap = Bitmap.createScaledBitmap(bitmap, INPUT_SIZE, INPUT_SIZE, false) | |
aviLoaderHolder.visibility = View.GONE | |
tvLoadingText.visibility = View.GONE | |
val results = classifier.recognizeImage(bitmap) | |
ivImageResult.setImageBitmap(bitmap) | |
tvTextResults.text = results.toString() | |
tvTextResults.visibility = View.VISIBLE | |
ivImageResult.visibility = View.VISIBLE | |
resultDialog.setCancelable(true) | |
} | |
override fun onVideo(cameraKitVideo: CameraKitVideo) { } | |
}) | |
btnToggleCamera.setOnClickListener { cameraView.toggleFacing() } | |
btnDetectObject.setOnClickListener { | |
cameraView.captureImage() | |
resultDialog.show() | |
tvTextResults.visibility = View.GONE | |
ivImageResult.visibility = View.GONE | |
} | |
resultDialog.setOnDismissListener { | |
tvLoadingText.visibility = View.VISIBLE | |
aviLoaderHolder.visibility = View.VISIBLE | |
} | |
initTensorFlowAndLoadModel() | |
} | |
override fun onResume() { | |
super.onResume() | |
cameraView.start() | |
} | |
override fun onPause() { | |
cameraView.stop() | |
super.onPause() | |
} | |
override fun onDestroy() { | |
super.onDestroy() | |
executor.execute { classifier.close() } | |
} | |
private fun initTensorFlowAndLoadModel() { | |
executor.execute { | |
try { | |
classifier = Classifier.create( | |
assets, | |
MODEL_PATH, | |
LABEL_PATH, | |
INPUT_SIZE) | |
makeButtonVisible() | |
} catch (e: Exception) { | |
throw RuntimeException("Error initializing TensorFlow!", e) | |
} | |
} | |
} | |
private fun makeButtonVisible() { | |
runOnUiThread { btnDetectObject.visibility = View.VISIBLE } | |
} | |
companion object { | |
private const val MODEL_PATH = "mobilenet_quant_v1_224.tflite" | |
private const val LABEL_PATH = "labels.txt" | |
private const val INPUT_SIZE = 224 | |
} | |
} |
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