优化列表更新

app/src/main/java/io/legado/app/base/adapter/CommonRecyclerAdapter.kt

@@ -4,13 +4,11 @@ import android.content.Context
 import android.util.SparseArray
 import android.view.LayoutInflater
 import android.view.ViewGroup
-import androidx.recyclerview.widget.AsyncListDiffer
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.viewbinding.ViewBinding
 import java.util.*
-import kotlin.collections.ArrayList
 
 /**
  * Created by Invincible on 2017/11/24.
@@ -21,27 +19,12 @@ import kotlin.collections.ArrayList
 abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val context: Context) :
     RecyclerView.Adapter<ItemViewHolder>() {
 
-    constructor(context: Context, vararg delegates: ItemViewDelegate<ITEM, VB>) : this(context) {
-        addItemViewDelegates(*delegates)
-    }
-
-    constructor(
-        context: Context,
-        vararg delegates: Pair<Int, ItemViewDelegate<ITEM, VB>>
-    ) : this(context) {
-        addItemViewDelegates(*delegates)
-    }
-
     val inflater: LayoutInflater = LayoutInflater.from(context)
 
     private val headerItems: SparseArray<(parent: ViewGroup) -> ViewBinding> by lazy { SparseArray() }
     private val footerItems: SparseArray<(parent: ViewGroup) -> ViewBinding> by lazy { SparseArray() }
 
-    private val itemDelegates: HashMap<Int, ItemViewDelegate<ITEM, VB>> = hashMapOf()
-
-    private val asyncListDiffer: AsyncListDiffer<ITEM> by lazy {
-        AsyncListDiffer(this, diffItemCallback)
-    }
+    private val items: MutableList<ITEM> = mutableListOf()
 
     private val lock = Object()
 
@@ -50,19 +33,6 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
 
     var itemAnimation: ItemAnimation? = null
 
-    open val diffItemCallback: DiffUtil.ItemCallback<ITEM> =
-        object : DiffUtil.ItemCallback<ITEM>() {
-
-            override fun areItemsTheSame(oldItem: ITEM, newItem: ITEM): Boolean {
-                return oldItem == newItem
-            }
-
-            override fun areContentsTheSame(oldItem: ITEM, newItem: ITEM): Boolean {
-                return true
-            }
-
-        }
-
     fun setOnItemClickListener(listener: (holder: ItemViewHolder, item: ITEM) -> Unit) {
         itemClickListener = listener
     }
@@ -75,28 +45,6 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
         recyclerView.adapter = this
     }
 
-    fun <DELEGATE : ItemViewDelegate<ITEM, VB>> addItemViewDelegate(
-        viewType: Int,
-        delegate: DELEGATE
-    ) {
-        itemDelegates[viewType] = delegate
-    }
-
-    fun addItemViewDelegate(delegate: ItemViewDelegate<ITEM, VB>) {
-        itemDelegates[itemDelegates.size] = delegate
-    }
-
-    fun addItemViewDelegates(vararg delegates: ItemViewDelegate<ITEM, VB>) {
-        delegates.forEach {
-            addItemViewDelegate(it)
-        }
-    }
-
-    fun addItemViewDelegates(vararg delegates: Pair<Int, ItemViewDelegate<ITEM, VB>>) =
-        delegates.forEach {
-            addItemViewDelegate(it.first, it.second)
-        }
-
     fun addHeaderView(header: ((parent: ViewGroup) -> ViewBinding)) {
         synchronized(lock) {
             val index = headerItems.size()
@@ -133,65 +81,88 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
 
     fun setItems(items: List<ITEM>?) {
         synchronized(lock) {
-            asyncListDiffer.submitList(items)
+            if (this.items.isNotEmpty()) {
+                this.items.clear()
+            }
+            if (items != null) {
+                this.items.addAll(items)
+            }
+            notifyDataSetChanged()
+        }
+    }
+
+    fun setItems(items: List<ITEM>?, diffResult: DiffUtil.DiffResult) {
+        synchronized(lock) {
+            if (this.items.isNotEmpty()) {
+                this.items.clear()
+            }
+            if (items != null) {
+                this.items.addAll(items)
+            }
+            diffResult.dispatchUpdatesTo(this)
         }
     }
 
     fun setItem(position: Int, item: ITEM) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            list[position] = item
-            asyncListDiffer.submitList(list)
+            val oldSize = getActualItemCount()
+            if (position in 0 until oldSize) {
+                this.items[position] = item
+                notifyItemChanged(position + getHeaderCount())
+            }
         }
     }
 
     fun addItem(item: ITEM) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            list.add(item)
-            asyncListDiffer.submitList(list)
+            val oldSize = getActualItemCount()
+            if (this.items.add(item)) {
+                notifyItemInserted(oldSize + getHeaderCount())
+            }
         }
     }
 
     fun addItems(position: Int, newItems: List<ITEM>) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            list.addAll(position, newItems)
-            asyncListDiffer.submitList(list)
+            if (this.items.addAll(position, newItems)) {
+                notifyItemRangeInserted(position + getHeaderCount(), newItems.size)
+            }
         }
     }
 
     fun addItems(newItems: List<ITEM>) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            list.addAll(newItems)
-            asyncListDiffer.submitList(list)
+            val oldSize = getActualItemCount()
+            if (this.items.addAll(newItems)) {
+                if (oldSize == 0 && getHeaderCount() == 0) {
+                    notifyDataSetChanged()
+                } else {
+                    notifyItemRangeInserted(oldSize + getHeaderCount(), newItems.size)
+                }
+            }
         }
     }
 
     fun removeItem(position: Int) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            if (list.removeAt(position) != null) {
-                asyncListDiffer.submitList(list)
+            if (this.items.removeAt(position) != null) {
+                notifyItemRemoved(position + getHeaderCount())
             }
         }
     }
 
     fun removeItem(item: ITEM) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            if (list.remove(item)) {
-                asyncListDiffer.submitList(list)
+            if (this.items.remove(item)) {
+                notifyItemRemoved(this.items.indexOf(item) + getHeaderCount())
             }
         }
     }
 
     fun removeItems(items: List<ITEM>) {
         synchronized(lock) {
-            val list = ArrayList(asyncListDiffer.currentList)
-            if (list.removeAll(items)) {
-                asyncListDiffer.submitList(list)
+            if (this.items.removeAll(items)) {
+                notifyDataSetChanged()
             }
         }
     }
@@ -202,7 +173,7 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
             if (oldPosition in 0 until size && newPosition in 0 until size) {
                 val srcPosition = oldPosition + getHeaderCount()
                 val targetPosition = newPosition + getHeaderCount()
-                Collections.swap(asyncListDiffer.currentList, srcPosition, targetPosition)
+                Collections.swap(this.items, srcPosition, targetPosition)
                 notifyItemChanged(srcPosition)
                 notifyItemChanged(targetPosition)
             }
@@ -211,9 +182,9 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
 
     fun updateItem(item: ITEM) =
         synchronized(lock) {
-            val index = asyncListDiffer.currentList.indexOf(item)
+            val index = this.items.indexOf(item)
             if (index >= 0) {
-                asyncListDiffer.currentList[index] = item
+                this.items[index] = item
                 notifyItemChanged(index)
             }
         }
@@ -240,17 +211,18 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
 
     fun clearItems() =
         synchronized(lock) {
-            asyncListDiffer.submitList(arrayListOf())
+            this.items.clear()
+            notifyDataSetChanged()
         }
 
-    fun isEmpty() = asyncListDiffer.currentList.isEmpty()
+    fun isEmpty() = items.isEmpty()
 
-    fun isNotEmpty() = asyncListDiffer.currentList.isNotEmpty()
+    fun isNotEmpty() = items.isNotEmpty()
 
     /**
      * 除去header和footer
      */
-    fun getActualItemCount() = asyncListDiffer.currentList.size
+    fun getActualItemCount() = items.size
 
 
     fun getHeaderCount() = headerItems.size()
@@ -258,12 +230,11 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
 
     fun getFooterCount() = footerItems.size()
 
-    fun getItem(position: Int): ITEM? = asyncListDiffer.currentList.getOrNull(position)
+    fun getItem(position: Int): ITEM? = items.getOrNull(position)
 
-    fun getItemByLayoutPosition(position: Int) =
-        asyncListDiffer.currentList.getOrNull(position - getHeaderCount())
+    fun getItemByLayoutPosition(position: Int) = items.getOrNull(position - getHeaderCount())
 
-    fun getItems(): List<ITEM> = asyncListDiffer.currentList
+    fun getItems(): List<ITEM> = items
 
     protected open fun getItemViewType(item: ITEM, position: Int) = 0
 
@@ -295,8 +266,7 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
             val holder = ItemViewHolder(getViewBinding(parent))
 
             @Suppress("UNCHECKED_CAST")
-            itemDelegates.getValue(viewType)
-                .registerListener(holder, (holder.binding as VB))
+            registerListener(holder, (holder.binding as VB))
 
             if (itemClickListener != null) {
                 holder.itemView.setOnClickListener {
@@ -330,8 +300,7 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
     ) {
         if (!isHeader(holder.layoutPosition) && !isFooter(holder.layoutPosition)) {
             getItem(holder.layoutPosition - getHeaderCount())?.let {
-                itemDelegates.getValue(getItemViewType(holder.layoutPosition))
-                    .convert(holder, (holder.binding as VB), it, payloads)
+                convert(holder, (holder.binding as VB), it, payloads)
             }
         }
     }
@@ -381,6 +350,22 @@ abstract class CommonRecyclerAdapter<ITEM, VB : ViewBinding>(protected val conte
         }
     }
 
+    /**
+     * 如果使用了事件回调,回调里不要直接使用item,会出现不更新的问题,
+     * 使用getItem(holder.layoutPosition)来获取item
+     */
+    abstract fun convert(
+        holder: ItemViewHolder,
+        binding: VB,
+        item: ITEM,
+        payloads: MutableList<Any>
+    )
+
+    /**
+     * 注册事件
+     */
+    abstract fun registerListener(holder: ItemViewHolder, binding: VB)
+
     companion object {
         private const val TYPE_HEADER_VIEW = Int.MIN_VALUE
         private const val TYPE_FOOTER_VIEW = Int.MAX_VALUE - 999

app/src/main/java/io/legado/app/base/adapter/ItemViewDelegate.kt

@@ -1,31 +0,0 @@
-package io.legado.app.base.adapter
-
-import android.content.Context
-import androidx.viewbinding.ViewBinding
-
-/**
- * Created by Invincible on 2017/11/24.
- *
- * item代理，
- */
-abstract class ItemViewDelegate<ITEM, VB : ViewBinding>(protected val context: Context) {
-
-    /**
-     * 如果使用了事件回调,回调里不要直接使用item,会出现不更新的问题,
-     * 使用getItem(holder.layoutPosition)来获取item,
-     * 或者使用registerListener(holder: ItemViewHolder, position: Int)
-     */
-    abstract fun convert(
-        holder: ItemViewHolder,
-        binding: VB,
-        item: ITEM,
-        payloads: MutableList<Any>
-    )
-
-
-    /**
-     * 注册事件
-     */
-    abstract fun registerListener(holder: ItemViewHolder, binding: VB)
-
-}

app/src/main/java/io/legado/app/base/adapter/SimpleRecyclerAdapter.kt

@@ -1,30 +1,265 @@
 package io.legado.app.base.adapter
 
 import android.content.Context
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.AsyncListDiffer
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import androidx.viewbinding.ViewBinding
+import java.util.*
+import kotlin.collections.ArrayList
 
 /**
  * Created by Invincible on 2017/12/15.
  */
-abstract class SimpleRecyclerAdapter<ITEM, VB : ViewBinding>(context: Context) :
-    CommonRecyclerAdapter<ITEM, VB>(context) {
+@Suppress("unused")
+abstract class SimpleRecyclerAdapter<ITEM, VB : ViewBinding>(protected val context: Context) :
+    RecyclerView.Adapter<ItemViewHolder>() {
 
-    init {
-        addItemViewDelegate(object : ItemViewDelegate<ITEM, VB>(context) {
+    val inflater: LayoutInflater = LayoutInflater.from(context)
 
-            override fun convert(
-                holder: ItemViewHolder,
-                binding: VB,
-                item: ITEM,
-                payloads: MutableList<Any>
-            ) {
-                this@SimpleRecyclerAdapter.convert(holder, binding, item, payloads)
+    private val asyncListDiffer: AsyncListDiffer<ITEM> by lazy {
+        AsyncListDiffer(this, diffItemCallback)
+    }
+
+    private val lock = Object()
+
+    private var itemClickListener: ((holder: ItemViewHolder, item: ITEM) -> Unit)? = null
+    private var itemLongClickListener: ((holder: ItemViewHolder, item: ITEM) -> Boolean)? = null
+
+    var itemAnimation: ItemAnimation? = null
+
+    open val diffItemCallback: DiffUtil.ItemCallback<ITEM> =
+        object : DiffUtil.ItemCallback<ITEM>() {
+
+            override fun areItemsTheSame(oldItem: ITEM, newItem: ITEM): Boolean {
+                return oldItem == newItem
             }
 
-            override fun registerListener(holder: ItemViewHolder, binding: VB) {
-                this@SimpleRecyclerAdapter.registerListener(holder, binding)
+            override fun areContentsTheSame(oldItem: ITEM, newItem: ITEM): Boolean {
+                return true
             }
-        })
+
+        }
+
+    fun setOnItemClickListener(listener: (holder: ItemViewHolder, item: ITEM) -> Unit) {
+        itemClickListener = listener
+    }
+
+    fun setOnItemLongClickListener(listener: (holder: ItemViewHolder, item: ITEM) -> Boolean) {
+        itemLongClickListener = listener
+    }
+
+    fun bindToRecyclerView(recyclerView: RecyclerView) {
+        recyclerView.adapter = this
+    }
+
+    fun setItems(items: List<ITEM>?) {
+        synchronized(lock) {
+            asyncListDiffer.submitList(items)
+        }
+    }
+
+    fun setItem(position: Int, item: ITEM) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            list[position] = item
+            asyncListDiffer.submitList(list)
+        }
+    }
+
+    fun addItem(item: ITEM) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            list.add(item)
+            asyncListDiffer.submitList(list)
+        }
+    }
+
+    fun addItems(position: Int, newItems: List<ITEM>) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            list.addAll(position, newItems)
+            asyncListDiffer.submitList(list)
+        }
+    }
+
+    fun addItems(newItems: List<ITEM>) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            list.addAll(newItems)
+            asyncListDiffer.submitList(list)
+        }
+    }
+
+    fun removeItem(position: Int) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            if (list.removeAt(position) != null) {
+                asyncListDiffer.submitList(list)
+            }
+        }
+    }
+
+    fun removeItem(item: ITEM) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            if (list.remove(item)) {
+                asyncListDiffer.submitList(list)
+            }
+        }
+    }
+
+    fun removeItems(items: List<ITEM>) {
+        synchronized(lock) {
+            val list = ArrayList(asyncListDiffer.currentList)
+            if (list.removeAll(items)) {
+                asyncListDiffer.submitList(list)
+            }
+        }
+    }
+
+    fun swapItem(oldPosition: Int, newPosition: Int) {
+        synchronized(lock) {
+            val size = itemCount
+            if (oldPosition in 0 until size && newPosition in 0 until size) {
+                Collections.swap(asyncListDiffer.currentList, oldPosition, newPosition)
+                notifyItemChanged(oldPosition)
+                notifyItemChanged(newPosition)
+            }
+        }
+    }
+
+    fun updateItem(item: ITEM) =
+        synchronized(lock) {
+            val index = asyncListDiffer.currentList.indexOf(item)
+            if (index >= 0) {
+                asyncListDiffer.currentList[index] = item
+                notifyItemChanged(index)
+            }
+        }
+
+    fun updateItem(position: Int, payload: Any) =
+        synchronized(lock) {
+            val size = itemCount
+            if (position in 0 until size) {
+                notifyItemChanged(position, payload)
+            }
+        }
+
+    fun updateItems(fromPosition: Int, toPosition: Int, payloads: Any) =
+        synchronized(lock) {
+            val size = itemCount
+            if (fromPosition in 0 until size && toPosition in 0 until size) {
+                notifyItemRangeChanged(
+                    fromPosition,
+                    toPosition - fromPosition + 1,
+                    payloads
+                )
+            }
+        }
+
+    fun clearItems() =
+        synchronized(lock) {
+            asyncListDiffer.submitList(arrayListOf())
+        }
+
+    fun isEmpty() = asyncListDiffer.currentList.isEmpty()
+
+    fun isNotEmpty() = asyncListDiffer.currentList.isNotEmpty()
+
+    fun getItem(position: Int): ITEM? = asyncListDiffer.currentList.getOrNull(position)
+
+    fun getItems(): List<ITEM> = asyncListDiffer.currentList
+
+    /**
+     * grid 模式下使用
+     */
+    protected open fun getSpanSize(viewType: Int, position: Int) = 1
+
+    final override fun getItemCount() = getItems().size
+
+    final override fun getItemViewType(position: Int): Int {
+        return 0
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ItemViewHolder {
+        val holder = ItemViewHolder(getViewBinding(parent))
+
+        @Suppress("UNCHECKED_CAST")
+        registerListener(holder, (holder.binding as VB))
+
+        if (itemClickListener != null) {
+            holder.itemView.setOnClickListener {
+                getItem(holder.layoutPosition)?.let {
+                    itemClickListener?.invoke(holder, it)
+                }
+            }
+        }
+
+        if (itemLongClickListener != null) {
+            holder.itemView.setOnLongClickListener {
+                getItem(holder.layoutPosition)?.let {
+                    itemLongClickListener?.invoke(holder, it) ?: true
+                } ?: true
+            }
+        }
+
+        return holder
+    }
+
+    protected abstract fun getViewBinding(parent: ViewGroup): VB
+
+    final override fun onBindViewHolder(holder: ItemViewHolder, position: Int) {}
+
+    @Suppress("UNCHECKED_CAST")
+    final override fun onBindViewHolder(
+        holder: ItemViewHolder,
+        position: Int,
+        payloads: MutableList<Any>
+    ) {
+        getItem(holder.layoutPosition)?.let {
+            convert(holder, (holder.binding as VB), it, payloads)
+        }
+    }
+
+    override fun onViewAttachedToWindow(holder: ItemViewHolder) {
+        super.onViewAttachedToWindow(holder)
+        addAnimation(holder)
+    }
+
+    override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
+        super.onAttachedToRecyclerView(recyclerView)
+        val manager = recyclerView.layoutManager
+        if (manager is GridLayoutManager) {
+            manager.spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
+                override fun getSpanSize(position: Int): Int {
+                    return getSpanSize(getItemViewType(position), position)
+                }
+            }
+        }
+    }
+
+    private fun addAnimation(holder: ItemViewHolder) {
+        itemAnimation?.let {
+            if (it.itemAnimEnabled) {
+                if (!it.itemAnimFirstOnly || holder.layoutPosition > it.itemAnimStartPosition) {
+                    startAnimation(holder, it)
+                    it.itemAnimStartPosition = holder.layoutPosition
+                }
+            }
+        }
+    }
+
+    protected open fun startAnimation(holder: ItemViewHolder, item: ItemAnimation) {
+        item.itemAnimation?.let {
+            for (anim in it.getAnimators(holder.itemView)) {
+                anim.setDuration(item.itemAnimDuration).start()
+                anim.interpolator = item.itemAnimInterpolator
+            }
+        }
     }
 
     /**
@@ -42,4 +277,5 @@ abstract class SimpleRecyclerAdapter<ITEM, VB : ViewBinding>(context: Context) :
      * 注册事件
      */
     abstract fun registerListener(holder: ItemViewHolder, binding: VB)
+
 }

app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt

@@ -163,7 +163,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
                 }
                 adapter.cacheChapters[book.bookUrl] = chapterCaches
                 withContext(Dispatchers.Main) {
-                    adapter.notifyItemRangeChanged(0, adapter.getActualItemCount(), true)
+                    adapter.notifyItemRangeChanged(0, adapter.itemCount, true)
                 }
             }
         }
@@ -179,7 +179,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
                 menu?.applyTint(this)
             }
             adapter.downloadMap = it
-            adapter.notifyItemRangeChanged(0, adapter.getActualItemCount(), true)
+            adapter.notifyItemRangeChanged(0, adapter.itemCount, true)
         }
         observeEvent<BookChapter>(EventBus.SAVE_CONTENT) {
             adapter.cacheChapters[it.bookUrl]?.add(it.url)

app/src/main/java/io/legado/app/ui/book/explore/ExploreShowAdapter.kt

@@ -3,8 +3,8 @@ package io.legado.app.ui.book.explore
 import android.content.Context
 import android.view.ViewGroup
 import io.legado.app.R
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 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.SearchBook
 import io.legado.app.databinding.ItemSearchBinding
@@ -13,7 +13,7 @@ import io.legado.app.utils.visible
 import org.jetbrains.anko.sdk27.listeners.onClick
 
 class ExploreShowAdapter(context: Context, val callBack: CallBack) :
-    SimpleRecyclerAdapter<SearchBook, ItemSearchBinding>(context) {
+    CommonRecyclerAdapter<SearchBook, ItemSearchBinding>(context) {
 
     override fun getViewBinding(parent: ViewGroup): ItemSearchBinding {
         return ItemSearchBinding.inflate(inflater, parent, false)

app/src/main/java/io/legado/app/ui/book/read/config/BgAdapter.kt

@@ -2,8 +2,8 @@ package io.legado.app.ui.book.read.config
 
 import android.content.Context
 import android.view.ViewGroup
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 import io.legado.app.base.adapter.ItemViewHolder
-import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.constant.EventBus
 import io.legado.app.databinding.ItemBgImageBinding
 import io.legado.app.help.ImageLoader
@@ -13,7 +13,7 @@ import org.jetbrains.anko.sdk27.listeners.onClick
 import java.io.File
 
 class BgAdapter(context: Context, val textColor: Int) :
-    SimpleRecyclerAdapter<String, ItemBgImageBinding>(context) {
+    CommonRecyclerAdapter<String, ItemBgImageBinding>(context) {
 
     override fun getViewBinding(parent: ViewGroup): ItemBgImageBinding {
         return ItemBgImageBinding.inflate(inflater, parent, false)

app/src/main/java/io/legado/app/ui/book/read/config/ReadStyleDialog.kt

@@ -6,8 +6,8 @@ import android.view.*
 import androidx.core.view.get
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 import io.legado.app.base.adapter.ItemViewHolder
-import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.constant.EventBus
 import io.legado.app.databinding.DialogReadBookStyleBinding
 import io.legado.app.databinding.ItemReadStyleBinding
@@ -207,7 +207,7 @@ class ReadStyleDialog : BaseDialogFragment(), FontSelectDialog.CallBack {
     }
 
     inner class StyleAdapter :
-        SimpleRecyclerAdapter<ReadBookConfig.Config, ItemReadStyleBinding>(requireContext()) {
+        CommonRecyclerAdapter<ReadBookConfig.Config, ItemReadStyleBinding>(requireContext()) {
 
         override fun getViewBinding(parent: ViewGroup): ItemReadStyleBinding {
             return ItemReadStyleBinding.inflate(inflater, parent, false)

app/src/main/java/io/legado/app/ui/book/read/config/SpeakEngineDialog.kt

@@ -151,7 +151,7 @@ class SpeakEngineDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
                 cbName.onClick {
                     getItem(holder.layoutPosition)?.let { httpTTS ->
                         engineId = httpTTS.id
-                        notifyItemRangeChanged(0, getActualItemCount())
+                        notifyItemRangeChanged(0, itemCount)
                     }
                 }
                 ivEdit.onClick {

app/src/main/java/io/legado/app/ui/book/searchContent/SearchContentActivity.kt

@@ -117,7 +117,7 @@ class SearchContentActivity :
         launch(Dispatchers.IO) {
             adapter.cacheFileNames.addAll(BookHelp.getChapterFiles(book))
             withContext(Dispatchers.Main) {
-                adapter.notifyItemRangeChanged(0, adapter.getActualItemCount(), true)
+                adapter.notifyItemRangeChanged(0, adapter.itemCount, true)
             }
         }
     }

app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt

@@ -399,7 +399,7 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
 
     override fun upCountView() {
         binding.selectActionBar
-            .upCountView(adapter.getSelection().size, adapter.getActualItemCount())
+            .upCountView(adapter.getSelection().size, adapter.itemCount)
     }
 
     override fun onQueryTextChange(newText: String?): Boolean {

app/src/main/java/io/legado/app/ui/book/toc/ChapterListFragment.kt

@@ -102,7 +102,7 @@ class ChapterListFragment : VMBaseFragment<ChapterListViewModel>(R.layout.fragme
         launch(IO) {
             adapter.cacheFileNames.addAll(BookHelp.getChapterFiles(book))
             withContext(Main) {
-                adapter.notifyItemRangeChanged(0, adapter.getActualItemCount(), true)
+                adapter.notifyItemRangeChanged(0, adapter.itemCount, true)
             }
         }
     }

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt

@@ -134,7 +134,7 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
     }
 
     fun getBooksCount(): Int {
-        return booksAdapter.getActualItemCount()
+        return booksAdapter.itemCount
     }
 
     override fun open(book: Book) {

app/src/main/java/io/legado/app/ui/main/explore/ExploreAdapter.kt

@@ -39,7 +39,7 @@ class ExploreAdapter(context: Context, private val scope: CoroutineScope, val ca
         payloads: MutableList<Any>
     ) {
         with(binding) {
-            if (holder.layoutPosition == getActualItemCount() - 1) {
+            if (holder.layoutPosition == itemCount - 1) {
                 root.setPadding(16.dp, 12.dp, 16.dp, 12.dp)
             } else {
                 root.setPadding(16.dp, 12.dp, 16.dp, 0)

app/src/main/java/io/legado/app/ui/main/rss/RssAdapter.kt

@@ -5,8 +5,8 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.widget.PopupMenu
 import io.legado.app.R
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 import io.legado.app.base.adapter.ItemViewHolder
-import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.RssSource
 import io.legado.app.databinding.ItemRssBinding
 import io.legado.app.help.ImageLoader
@@ -14,7 +14,7 @@ import org.jetbrains.anko.sdk27.listeners.onClick
 import org.jetbrains.anko.sdk27.listeners.onLongClick
 
 class RssAdapter(context: Context, val callBack: CallBack) :
-    SimpleRecyclerAdapter<RssSource, ItemRssBinding>(context) {
+    CommonRecyclerAdapter<RssSource, ItemRssBinding>(context) {
 
     override fun getViewBinding(parent: ViewGroup): ItemRssBinding {
         return ItemRssBinding.inflate(inflater, parent, false)

app/src/main/java/io/legado/app/ui/replace/ReplaceRuleActivity.kt

@@ -281,7 +281,7 @@ class ReplaceRuleActivity : VMBaseActivity<ActivityReplaceRuleBinding, ReplaceRu
     override fun upCountView() {
         binding.selectActionBar.upCountView(
             adapter.getSelection().size,
-            adapter.getActualItemCount()
+            adapter.itemCount
         )
     }
 

app/src/main/java/io/legado/app/ui/rss/article/BaseRssArticlesAdapter.kt

@@ -2,12 +2,12 @@ package io.legado.app.ui.rss.article
 
 import android.content.Context
 import androidx.viewbinding.ViewBinding
-import io.legado.app.base.adapter.SimpleRecyclerAdapter
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 import io.legado.app.data.entities.RssArticle
 
 
 abstract class BaseRssArticlesAdapter<VB : ViewBinding>(context: Context, val callBack: CallBack) :
-    SimpleRecyclerAdapter<RssArticle, VB>(context) {
+    CommonRecyclerAdapter<RssArticle, VB>(context) {
 
     interface CallBack {
         val isGridLayout: Boolean

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceActivity.kt

@@ -221,7 +221,7 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
     override fun upCountView() {
         binding.selectActionBar.upCountView(
             adapter.getSelection().size,
-            adapter.getActualItemCount()
+            adapter.itemCount
         )
     }