Amaliy ish №3,4 Topshirdi: Ustaboyev Abbosbek Qabul qildi: Jabborova N. Toshkent 022 Mavzu: Dasturiy mahsulotning backend qismi. Dastur kodi va screenshot: Bu ilova mvvm arhitekturasida qili Shopping Repository

viewModelni yaratamiz

package mobiler.abbosbek.onlineshopping.screen

import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import mobiler.abbosbek.onlineshopping.db.AppDataBase
import mobiler.abbosbek.onlineshopping.model.CategoryModel
import mobiler.abbosbek.onlineshopping.model.OfferModel
import mobiler.abbosbek.onlineshopping.model.ProductModel
import mobiler.abbosbek.onlineshopping.repository.ShopRepository

class MainViewModel : ViewModel() {

val repository = ShopRepository()
val error = MutableLiveData()
val offersData = MutableLiveData>()
val categoryData = MutableLiveData>()
val productData = MutableLiveData>()
val progress = MutableLiveData()

fun getOffers(){

repository.getOffers(error,offersData)
}

fun getCategories(){

repository.getCategories(error,categoryData)
}
fun getTopProducts(){
repository.getTopProducts(error,productData)
}

fun getProductsByCategory(id : Int){

repository.getProductsByCategory(id,error, productData)
}
fun getProductsByIds(ids : List){
repository.getProductsByIds(ids,error,progress, productData)
}

fun insertAllProducts2DB(items : List

){
CoroutineScope(Dispatchers.IO).launch {
AppDataBase.getDataBase().getProductDao().insertAll(items)
CoroutineScope(Dispatchers.Main).launch {
error.value = "Ma'lumotlar bazaga yuklandi!"
}
}
}

fun getAllDBProducts(){

CoroutineScope(Dispatchers.Main).launch {
productData.value = withContext(Dispatchers.IO){
AppDataBase.getDataBase().getProductDao().getAllProducts()