??

???? ??? ?????? ? ?? ?? ????? ??? ??????. ???? ????? ?? ???? ???? ?? ??? ???? ?????. ?????, ???? ??? ?????. ?? ??? ???? ????? ?????.
???? ???? ?? ? ?? ?? ??? ??? ????.

1. ??? ?? ??? ???? ???
2. ?? ??? ?? ???? ?? ??
3. ??? ???? ?? ??? ?? ?? ??

---

??? ??

Android ?????? ???? ????? build.gradle ??? ?? ???? ?????.

dependencies {
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.1"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.1"
}

---

??? ?? ??

??? ??? ???? ???? ???? ?? ?????. ?? ??? ?? ? ??? ???????.

??

class WeatherService {
    fun updateWeather() {
        lifecycleScope.launch {
            // Simulating weather API call
            val weather = fetchWeatherData()
            updateUI(weather)
        }
    }

    private suspend fun fetchWeatherData(): Weather {
        delay(1000) // Simulate network delay
        return Weather(temperature = 25, condition = "Sunny")
    }
}

???

class StockPortfolio {
    suspend fun fetchPortfolioValue() {
        val stocksDeferred = async { fetchStockPrices() }
        val cryptoDeferred = async { fetchCryptoPrices() }

        // Wait for both results
        val totalValue = stocksDeferred.await() + cryptoDeferred.await()
        println("Portfolio value: $totalValue")
    }
}

---

??? ?? ? ????

??? ??? ??? ???? ??? ????? ???? ?? ?????. ??? ??? ??? ???????.

???? ??

class NewsActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        lifecycleScope.launch {
            val news = newsRepository.fetchLatestNews()
            newsAdapter.submitList(news)
        }
    }
}

ViewModelScope

class UserViewModel : ViewModel() {
    private val _userData = MutableLiveData<User>()

    fun loadUserData() {
        viewModelScope.launch {
            try {
                val user = userRepository.fetchUserDetails()
                _userData.value = user
            } catch (e: Exception) {
                // Handle error
            }
        }
    }
}

---

???? ??

????? ?? ??? ???? ????? ?????. ??? ????? ????? ???? ??? ??? ????.

class ImageProcessor {
    fun processImage(bitmap: Bitmap) {
        lifecycleScope.launch(Dispatchers.Default) {
            // CPU-intensive image processing
            val processed = applyFilters(bitmap)

            withContext(Dispatchers.Main) {
                // Update UI with processed image
                imageView.setImageBitmap(processed)
            }
        }
    }

    suspend fun downloadImage(url: String) {
        withContext(Dispatchers.IO) {
            // Network operation to download image
            val response = imageApi.fetchImage(url)
            saveToDatabase(response)
        }
    }

---

?? ?? ? ?? ??

?????? ??? ?? ??? ??????. ?? ????? ???? ??? ??? ????.

class DataManager {
    private val exceptionHandler = CoroutineExceptionHandler { _, exception ->
        println("Caught $exception")
    }

    fun fetchData() {
        lifecycleScope.launch(exceptionHandler) {
            try {
                val result = riskyOperation()
                processResult(result)
            } catch (e: NetworkException) {
                showError("Network error occurred")
            } catch (e: DatabaseException) {
                showError("Database error occurred")
            }
        }
    }
}

---

??? StateFlow

Flow? ??? ??? ??? ??? ?? StateFlow? UI ?? ??? ??????.

class SearchViewModel : ViewModel() {
    private val _searchResults = MutableStateFlow<List<SearchResult>>(emptyList())
    val searchResults: StateFlow<List<SearchResult>> = _searchResults.asStateFlow()

    fun search(query: String) {
        viewModelScope.launch {
            searchRepository.getSearchResults(query)
                .flowOn(Dispatchers.IO)
                .catch { e -> 
                    // Handle errors
                }
                .collect { results ->
                    _searchResults.value = results
                }
        }
    }
}

---

???? ???

???? ???? ?? ???? ????? ???? ? ??? ???.

class OrderProcessor {
    suspend fun processOrder(orderId: String) = coroutineScope {
        val orderDeferred = async { fetchOrderDetails(orderId) }
        val inventoryDeferred = async { checkInventory(orderId) }
        val paymentDeferred = async { processPayment(orderId) }

        try {
            val order = orderDeferred.await()
            val inventory = inventoryDeferred.await()
            val payment = paymentDeferred.await()

            finalizeOrder(order, inventory, payment)
        } catch (e: Exception) {
            // If any operation fails, all others are automatically cancelled
            throw OrderProcessingException("Failed to process order", e)
        }
    }
}

---

??

Kotlin ???? Android ???? ??? ??? ???? ?????? ???? ??? ?????. ??? ?? ??? ??? ???? ?? ????? ?? ??? ???? ??? ??????? ??? ? ????. ?? ?? ??? ??? ??, ???? ? ?? ?? ??? ?? ??????.

???? ??? ??? ?????. ?????? ??? ??? ????, ??? ??? ????, ???? ???? ?? ?? ? ??? ??? ??? ???.

??? ??? ???????

? ??? Kotlin ??? ???? ?? ?? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!