Remove boiler plate code for ViewModelFactory

src/main/kotlin/com/looker/droidify/ui/fragments/ExploreFragment.kt

@@ -4,13 +4,11 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.looker.droidify.database.Product
 import com.looker.droidify.databinding.FragmentExploreXBinding
 import com.looker.droidify.entity.Repository
 import com.looker.droidify.ui.items.VAppItem
-import com.looker.droidify.ui.viewmodels.MainNavFragmentViewModelX
 import com.looker.droidify.utility.PRODUCT_ASYNC_DIFFER_CONFIG
 import com.looker.droidify.utility.RxUtils
 import com.mikepenz.fastadapter.FastAdapter
@@ -21,7 +19,6 @@ import io.reactivex.rxjava3.schedulers.Schedulers
 // TODO create categories layouts that hold the apps in horizontal layout
 class ExploreFragment : MainNavFragmentX() {
 
-    override lateinit var viewModel: MainNavFragmentViewModelX
     private lateinit var binding: FragmentExploreXBinding
     private lateinit var appsItemAdapter: PagedModelAdapter<Product, VAppItem>
     private var appsFastAdapter: FastAdapter<VAppItem>? = null
@@ -38,9 +35,6 @@ class ExploreFragment : MainNavFragmentX() {
         super.onCreate(savedInstanceState)
         binding = FragmentExploreXBinding.inflate(inflater, container, false)
         binding.lifecycleOwner = this
-        val viewModelFactory = MainNavFragmentViewModelX.Factory(mainActivityX.db, source)
-        viewModel = ViewModelProvider(this, viewModelFactory)
-            .get(MainNavFragmentViewModelX::class.java)
         return binding.root
     }
 

src/main/kotlin/com/looker/droidify/ui/fragments/InstalledFragment.kt

@@ -4,7 +4,6 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.looker.droidify.database.Product
@@ -12,7 +11,6 @@ import com.looker.droidify.databinding.FragmentInstalledXBinding
 import com.looker.droidify.entity.Repository
 import com.looker.droidify.ui.items.HAppItem
 import com.looker.droidify.ui.items.VAppItem
-import com.looker.droidify.ui.viewmodels.MainNavFragmentViewModelX
 import com.looker.droidify.utility.PRODUCT_ASYNC_DIFFER_CONFIG
 import com.looker.droidify.utility.RxUtils
 import com.mikepenz.fastadapter.FastAdapter
@@ -22,7 +20,6 @@ import io.reactivex.rxjava3.schedulers.Schedulers
 
 class InstalledFragment : MainNavFragmentX() {
 
-    override lateinit var viewModel: MainNavFragmentViewModelX
     private lateinit var binding: FragmentInstalledXBinding
 
     private lateinit var installedItemAdapter: PagedModelAdapter<Product, VAppItem>
@@ -42,9 +39,6 @@ class InstalledFragment : MainNavFragmentX() {
         super.onCreate(savedInstanceState)
         binding = FragmentInstalledXBinding.inflate(inflater, container, false)
         binding.lifecycleOwner = this
-        val viewModelFactory = MainNavFragmentViewModelX.Factory(mainActivityX.db, source)
-        viewModel = ViewModelProvider(this, viewModelFactory)
-            .get(MainNavFragmentViewModelX::class.java)
         return binding.root
     }
 

src/main/kotlin/com/looker/droidify/ui/fragments/LatestFragment.kt

@@ -4,7 +4,6 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.looker.droidify.database.Product
@@ -12,7 +11,6 @@ import com.looker.droidify.databinding.FragmentLatestXBinding
 import com.looker.droidify.entity.Repository
 import com.looker.droidify.ui.items.HAppItem
 import com.looker.droidify.ui.items.VAppItem
-import com.looker.droidify.ui.viewmodels.MainNavFragmentViewModelX
 import com.looker.droidify.utility.PRODUCT_ASYNC_DIFFER_CONFIG
 import com.looker.droidify.utility.RxUtils
 import com.mikepenz.fastadapter.FastAdapter
@@ -22,7 +20,6 @@ import io.reactivex.rxjava3.schedulers.Schedulers
 
 class LatestFragment : MainNavFragmentX() {
 
-    override lateinit var viewModel: MainNavFragmentViewModelX
     private lateinit var binding: FragmentLatestXBinding
 
     private lateinit var updatedItemAdapter: PagedModelAdapter<Product, VAppItem>
@@ -43,9 +40,6 @@ class LatestFragment : MainNavFragmentX() {
         super.onCreate(savedInstanceState)
         binding = FragmentLatestXBinding.inflate(inflater, container, false)
         binding.lifecycleOwner = this
-        val viewModelFactory = MainNavFragmentViewModelX.Factory(mainActivityX.db, source)
-        viewModel = ViewModelProvider(this, viewModelFactory)
-            .get(MainNavFragmentViewModelX::class.java)
         return binding.root
     }
 

src/main/kotlin/com/looker/droidify/ui/fragments/MainNavFragmentX.kt

@@ -3,7 +3,7 @@ package com.looker.droidify.ui.fragments
 import android.os.Bundle
 import android.view.View
 import androidx.fragment.app.Fragment
-import com.looker.droidify.R
+import androidx.fragment.app.viewModels
 import com.looker.droidify.entity.ProductItem
 import com.looker.droidify.ui.activities.MainActivityX
 import com.looker.droidify.ui.viewmodels.MainNavFragmentViewModelX
@@ -11,7 +11,9 @@ import com.looker.droidify.ui.viewmodels.MainNavFragmentViewModelX
 abstract class MainNavFragmentX : Fragment() {
     val mainActivityX: MainActivityX
         get() = requireActivity() as MainActivityX
-    abstract var viewModel: MainNavFragmentViewModelX
+    val viewModel: MainNavFragmentViewModelX by viewModels {
+        MainNavFragmentViewModelX.Factory(mainActivityX.db, source)
+    }
     abstract val source: Source
 
     open fun onBackPressed(): Boolean = false