husaynhakeem

class Pokemon(
        val name: String = "",
        val type: PokemonType = PokemonType.NORMAL,
        val height: Double = 0.0,
        val weight: Double = 0.0
) {
    operator fun component1() = name
    operator fun component2() = type
    operator fun component3() = height
    operator fun component4() = weight

husaynhakeem

for ((key, value) in map) {
   ...
}

husaynhakeem

import 'package:flutter/material.dart';

void main() => runApp(new HelloWorldApp());

class HelloWorldApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new Material(
        child: new Center(

husaynhakeem

class ProductsRepository(
        private val localRepository: LocalRepository,
        private val remoteRepository: RemoteRepository,
        private val executor: Executor) {

    fun getProducts(): LiveData<List<Product>> {
        refreshProducts() // Prepare to update the local repository
        return localRepository.getProducts() // But in the meantime, display content from the local repository to the user
    }

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class ProductsViewModel(private val repository: ProductsRepository) : ViewModel() {

    /*
    It is important to keep the data in a variable instead of writing
    fun getProducts() = repository.getProducts()
    Because this way if the screen is rotated for example, even though the
    activity will have been recreated, it will use the same data from the
    previous instance (Because it will be using the same viewModel instance)
     */
    private val products = repository.getProducts()

husaynhakeem

class ProductsActivity : AppCompatActivity() {

    private val viewModel by viewModel<ProductsViewModel>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_products)
        setUpProductsListener()
    }

husaynhakeem

val xProcessor = FirebaseVision.getInstance().getVisionXDetector()
val image = getVisionImageFromImagePath(imagePath)
val resultTask = xProcessor.detectInImage(image)
                           .addOnSuccessListener { // Handle results }
                           .addOnFailureListener { // Handle exception }

husaynhakeem

// Bitmap
fun getVisionImageFromImagePath(imagePath: String) =
    FirebaseVisionImage.fromBitmap(BitmapFactory.decodeFile(imagePath))

// Uri
fun getVisionImageFromImagePath(imagePath: String) =
    FirebaseVisionImage.fromFilePath(context, Uri.parse("file://" + imagePath))

husaynhakeem

abstract class MLKitApi<P, T> {

    protected val firebaseVisionInstance = FirebaseVision.getInstance()

    protected abstract val processor: P

    protected abstract fun detectInImage(image: String, onSuccess: (String) -> Unit, onFailure: (String) -> Unit): Task<T>

    protected abstract fun onDetectionSuccess(result: T): String

husaynhakeem

object MLkitApiFactory {

    private val apis = EnumMap<MLKitApiType, MLKitApi<*, *>>(MLKitApiType::class.java)

    fun get(type: MLKitApiType): MLKitApi<*, *> = when (type) {
        BARCODE_DETECTOR -> apis.getOrPut(BARCODE_DETECTOR, { BarcodeDetector() })
        FACE_DETECTOR -> apis.getOrPut(FACE_DETECTOR, { FaceDetector() })
        IMAGE_LABELER -> apis.getOrPut(IMAGE_LABELER, { ImageLabeler() })
        LANDMARK_DETECTOR -> apis.getOrPut(LANDMARK_DETECTOR, { LandmarkDetector() })
        TEXT_DETECTOR -> apis.getOrPut(TEXT_DETECTOR, { TextDetector() })