up

app/src/main/java/io/legado/app/data/dao/BookChapterDao.kt

@@ -1,6 +1,6 @@
 package io.legado.app.data.dao
 
-import androidx.paging.DataSource
+import androidx.lifecycle.LiveData
 import androidx.room.Dao
 import androidx.room.Insert
 import androidx.room.OnConflictStrategy
@@ -11,7 +11,7 @@ import io.legado.app.data.entities.BookChapter
 interface BookChapterDao {
 
     @Query("select * from chapters where bookUrl = :bookUrl")
-    fun observeByBook(bookUrl: String): DataSource.Factory<Int, BookChapter>
+    fun observeByBook(bookUrl: String): LiveData<List<BookChapter>>
 
     @Query("select * from chapters where bookUrl = :bookUrl")
     fun getChapterList(bookUrl: String): List<BookChapter>

app/src/main/java/io/legado/app/ui/chapterlist/ChapterListAdapter.kt

@@ -1,12 +1,9 @@
 package io.legado.app.ui.chapterlist
 
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.paging.PagedListAdapter
-import androidx.recyclerview.widget.DiffUtil
-import androidx.recyclerview.widget.RecyclerView
+import android.content.Context
 import io.legado.app.R
+import io.legado.app.base.adapter.ItemViewHolder
+import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.help.BookHelp
@@ -15,46 +12,22 @@ import io.legado.app.utils.getCompatColor
 import kotlinx.android.synthetic.main.item_bookmark.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 
-class ChapterListAdapter(val callback: Callback) :
-    PagedListAdapter<BookChapter, ChapterListAdapter.MyViewHolder>(DIFF_CALLBACK) {
+class ChapterListAdapter(context: Context, val callback: Callback) :
+    SimpleRecyclerAdapter<BookChapter>(context, R.layout.item_chapter_list) {
 
-    companion object {
-
-        @JvmField
-        val DIFF_CALLBACK = object : DiffUtil.ItemCallback<BookChapter>() {
-            override fun areItemsTheSame(oldItem: BookChapter, newItem: BookChapter): Boolean =
-                oldItem.bookUrl == newItem.bookUrl
-                        && oldItem.url == newItem.url
-
-            override fun areContentsTheSame(oldItem: BookChapter, newItem: BookChapter): Boolean =
-                oldItem.title == newItem.title
-        }
-    }
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
-        return MyViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.item_chapter_list, parent, false))
-    }
-
-    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
-        getItem(position)?.let {
-            holder.bind(it, callback)
-        }
-    }
-
-    class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
-
-        fun bind(bookChapter: BookChapter, callback: Callback) = with(itemView) {
-            if (callback.durChapterIndex() == bookChapter.index) {
+    override fun convert(holder: ItemViewHolder, item: BookChapter, payloads: MutableList<Any>) {
+        with(holder.itemView) {
+            if (callback.durChapterIndex() == item.index) {
                 tv_chapter_name.setTextColor(context.accentColor)
             } else {
                 tv_chapter_name.setTextColor(context.getCompatColor(R.color.tv_text_default))
             }
-            tv_chapter_name.text = bookChapter.title
-            itemView.onClick {
-                callback.openChapter(bookChapter)
+            tv_chapter_name.text = item.title
+            this.onClick {
+                callback.openChapter(item)
             }
             callback.book()?.let {
-                tv_chapter_name.paint.isFakeBoldText = BookHelp.hasContent(it, bookChapter)
+                tv_chapter_name.paint.isFakeBoldText = BookHelp.hasContent(it, item)
             }
         }
     }

app/src/main/java/io/legado/app/ui/chapterlist/ChapterListFragment.kt

@@ -3,10 +3,7 @@ package io.legado.app.ui.chapterlist
 import android.os.Bundle
 import android.view.View
 import android.widget.LinearLayout
-import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
-import androidx.paging.LivePagedListBuilder
-import androidx.paging.PagedList
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
 import io.legado.app.App
@@ -26,7 +23,6 @@ class ChapterListFragment : VMBaseFragment<ChapterListViewModel>(R.layout.fragme
         get() = getViewModelOfActivity(ChapterListViewModel::class.java)
 
     lateinit var adapter: ChapterListAdapter
-    private var liveData: LiveData<PagedList<BookChapter>>? = null
     private var durChapterIndex = 0
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -37,7 +33,7 @@ class ChapterListFragment : VMBaseFragment<ChapterListViewModel>(R.layout.fragme
     }
 
     private fun initRecyclerView() {
-        adapter = ChapterListAdapter(this)
+        adapter = ChapterListAdapter(requireContext(), this)
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(
             DividerItemDecoration(
@@ -49,14 +45,17 @@ class ChapterListFragment : VMBaseFragment<ChapterListViewModel>(R.layout.fragme
     }
 
     private fun initData() {
-        liveData?.removeObservers(viewLifecycleOwner)
-        liveData = LivePagedListBuilder(App.db.bookChapterDao().observeByBook(viewModel.bookUrl ?: ""), 30).build()
-        liveData?.observe(viewLifecycleOwner, Observer { adapter.submitList(it) })
-        viewModel.bookDate.value?.let {
-            loadBookFinish(it)
-        } ?: viewModel.bookDate.observe(viewLifecycleOwner, Observer {
+        viewModel.bookDate.observe(viewLifecycleOwner, Observer {
             loadBookFinish(it)
         })
+        viewModel.bookUrl?.let { bookUrl ->
+            App.db.bookChapterDao().observeByBook(bookUrl).observe(viewLifecycleOwner, Observer {
+                adapter.setItems(it)
+                viewModel.bookDate.value?.let { book ->
+                    loadBookFinish(book)
+                }
+            })
+        }
     }
 
     private fun initView() {