Fix auto import changes.

Author: sharmadhiraj

app/src/main/java/com/sharmadhiraj/androidpaginglibrarystepbystepimplementationguide/adapter/NewsListAdapter.kt

@@ -1,14 +1,14 @@
 package com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.adapter
 
 import android.view.ViewGroup
-import androidx.paging.PagingDataAdapter
+import androidx.paging.PagedListAdapter
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.RecyclerView
 import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.News
 import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.State
 
-class NewsListAdapter(private val retry: () -> Unit) :
-    PagingDataAdapter<News, RecyclerView.ViewHolder>(NewsDiffCallback) {
+class NewsListAdapter(private val retry: () -> Unit)
+    : PagedListAdapter<News, RecyclerView.ViewHolder>(NewsDiffCallback) {
 
     private val DATA_VIEW_TYPE = 1
     private val FOOTER_VIEW_TYPE = 2

app/src/main/java/com/sharmadhiraj/androidpaginglibrarystepbystepimplementationguide/data/NewsDataSource.kt

@@ -1,7 +1,7 @@
 package com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data
 
 import androidx.lifecycle.MutableLiveData
-import androidx.paging.PagingSource
+import androidx.paging.PageKeyedDataSource
 import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.State.DONE
 import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.State.ERROR
 import io.reactivex.Completable
@@ -13,7 +13,7 @@ import io.reactivex.schedulers.Schedulers
 class NewsDataSource(
     private val networkService: NetworkService,
     private val compositeDisposable: CompositeDisposable
-) : PagingSource<Int, News>() {
+) : PageKeyedDataSource<Int, News>() {
 
     var state: MutableLiveData<State> = MutableLiveData()
     private var retryCompletable: Completable? = null

app/src/main/java/com/sharmadhiraj/androidpaginglibrarystepbystepimplementationguide/viewModel/NewsListViewModel.kt

@@ -3,17 +3,10 @@ package com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.viewM
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.Transformations
 import androidx.lifecycle.ViewModel
+import androidx.paging.LivePagedListBuilder
 import androidx.paging.PagedList
-import androidx.paging.Pager
-import androidx.paging.PagingConfig
-import androidx.paging.liveData
-import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.NetworkService
-import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.News
-import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.NewsDataSource
-import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.NewsDataSourceFactory
-import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.State
+import com.sharmadhiraj.androidpaginglibrarystepbystepimplementationguide.data.*
 import io.reactivex.disposables.CompositeDisposable
-import kotlinx.coroutines.Dispatchers
 
 class NewsListViewModel : ViewModel() {
 
@@ -30,17 +23,7 @@ class NewsListViewModel : ViewModel() {
             .setInitialLoadSizeHint(pageSize * 2)
             .setEnablePlaceholders(false)
             .build()
-        newsList = Pager<Int, News>(
-            PagingConfig(
-                config.pageSize,
-                config.prefetchDistance,
-                config.enablePlaceholders,
-                config.initialLoadSizeHint,
-                config.maxSize
-            ),
-            this.initialLoadKey,
-            newsDataSourceFactory.asPagingSourceFactory(Dispatchers.IO)
-        ).liveData.build()
+        newsList = LivePagedListBuilder(newsDataSourceFactory, config).build()
     }