YanLongChangAn/legado
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优化

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This commit is contained in:
Horis
2024-09-08 17:24:43 +08:00
parent 4cb69f6c10
commit 230b6e884c
1 changed files with 9 additions and 7 deletions
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app/src/main/java/io/legado/app/base/adapter/RecyclerAdapter.kt
+9 -7
View File
@@ -115,19 +115,21 @@ abstract class RecyclerAdapter<ITEM, VB : ViewBinding>(protected val context: Co
kotlin.runCatching {
val oldItems = this.items.toList()
val itemsSize = items?.size ?: 0
val headerCount = getHeaderCount()
val footerCount = getFooterCount()
val callback = object : DiffUtil.Callback() {
override fun getOldListSize(): Int {
return itemCount
}
override fun getNewListSize(): Int {
return (items?.size ?: 0) + getHeaderCount() + getFooterCount()
return itemsSize + headerCount + footerCount
}
override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
val oldItem = oldItems.getOrNull(oldItemPosition - getHeaderCount())
val oldItem = oldItems.getOrNull(oldItemPosition - headerCount)
?: return true
val newItem = items?.getOrNull(newItemPosition - getHeaderCount())
val newItem = items?.getOrNull(newItemPosition - headerCount)
?: return true
return itemCallback.areItemsTheSame(oldItem, newItem)
}
@@ -136,17 +138,17 @@ abstract class RecyclerAdapter<ITEM, VB : ViewBinding>(protected val context: Co
oldItemPosition: Int,
newItemPosition: Int
): Boolean {
val oldItem = oldItems.getOrNull(oldItemPosition - getHeaderCount())
val oldItem = oldItems.getOrNull(oldItemPosition - headerCount)
?: return true
val newItem = items?.getOrNull(newItemPosition - getHeaderCount())
val newItem = items?.getOrNull(newItemPosition - headerCount)
?: return true
return itemCallback.areContentsTheSame(oldItem, newItem)
}
override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? {
val oldItem = oldItems.getOrNull(oldItemPosition - getHeaderCount())
val oldItem = oldItems.getOrNull(oldItemPosition - headerCount)
?: return null
val newItem = items?.getOrNull(newItemPosition - getHeaderCount())
val newItem = items?.getOrNull(newItemPosition - headerCount)
?: return null
return itemCallback.getChangePayload(oldItem, newItem)
}