...

app/src/main/java/com/base/browserwhite/ui/adapter/NewsAdapter.kt

@@ -42,9 +42,8 @@ class NewsAdapter(
 
     override fun onBindViewHolder(holder: NewsViewHolder, @SuppressLint("RecyclerView") position: Int) {
         val binding = ItemNewsBinding.bind(holder.itemView)
-        val bean = beanList[holder.absoluteAdapterPosition]
+        val bean = beanList[holder.bindingAdapterPosition]
         val context = holder.itemView.context
-        runCatching {
         Glide.with(context).load(bean.orgImgPath).listener(object : RequestListener<Drawable> {
             override fun onLoadFailed(
                 e: GlideException?,
@@ -52,6 +51,7 @@ class NewsAdapter(
                 target: Target<Drawable>,
                 isFirstResource: Boolean
             ): Boolean {
+                LogEx.logDebug(TAG, "onLoadFailed $position ${holder.bindingAdapterPosition}")
                 beanList.remove(bean)
                 notifyItemRemoved(position)
                 return true
@@ -68,7 +68,6 @@ class NewsAdapter(
             }
 
         }).centerCrop().into(binding.ivMedia)
-        }
         binding.tvTittle.text = bean.headline
         runCatching {
             Glide.with(context).load(bean.mediaIcon).into(binding.ivIcon)
@@ -77,11 +76,19 @@ class NewsAdapter(
         binding.tvPublishTime.text = bean.publishTime.toFormatTime()
     }
 
-    fun loadMore(categoryId: Int = 0, callBack: (() -> Unit)? = null) {
+    fun loadMore(
+        categoryId: Int = 0,
+        errorCallBack: (() -> Unit)? = null,
+        callBack: (() -> Unit)? = null
+    ) {
         val position = beanList.size
         val last = if (beanList.isEmpty()) null else beanList.last()
         LogEx.logDebug(TAG, "newsId=${last?.newsId}")
-        NewsUtils.requestNews(categoryId, last?.newsId) {
+        NewsUtils.requestNews(categoryId, last?.newsId,
+            errorCallBack = {
+                errorCallBack?.invoke()
+            })
+        {
             beanList.addAll(it)
             lifecycleScope.launch(Dispatchers.Main) {
                 this@NewsAdapter.notifyItemInserted(position)

app/src/main/java/com/base/browserwhite/ui/fragment/HomeFragment.kt

@@ -64,23 +64,32 @@ class HomeFragment : BaseFragment<FragmentHomeBinding>() {
         binding.rvNews.addOnScrollListener(object : OnScrollListener() {
             override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
                 super.onScrolled(recyclerView, dx, dy)
-                val lastVisibleItemPosition = (recyclerView.layoutManager as LinearLayoutManager).findLastVisibleItemPosition()
-                if (!isLoadingMore && lastVisibleItemPosition == newsAdapter.itemCount - 5) {
+                val lastVisibleItemPosition =
+                    (recyclerView.layoutManager as LinearLayoutManager).findLastCompletelyVisibleItemPosition()
+                LogEx.logDebug(
+                    TAG,
+                    "isLoadingMore=$isLoadingMore lastVisibleItemPosition=$lastVisibleItemPosition ${newsAdapter.itemCount} "
+                )
+                if (!isLoadingMore && lastVisibleItemPosition == newsAdapter.itemCount - 1) {
                     isLoadingMore = true
                     // 触发加载更多数据
-                    newsAdapter.loadMore {
+                    newsAdapter.loadMore(
+                        errorCallBack = {},
+                        callBack = {
                             LogEx.logDebug(TAG, "loadMore BACK")
                             isLoadingMore = false
-                    }
+                        })
                 }
 
             }
         })
         isLoadingMore = true
-        newsAdapter.loadMore {
+        newsAdapter.loadMore(
+            errorCallBack = {},
+            callBack = {
                 LogEx.logDebug(TAG, "loadMore BACK")
                 isLoadingMore = false
-        }
+            })
     }
 
     override fun onResume() {

app/src/main/java/com/base/browserwhite/utils/NewsUtils.kt

@@ -36,6 +36,7 @@ object NewsUtils {
     fun requestNews(
         categoryId: Int = 0,
         pageNumber: Long? = null,
+        errorCallBack:()->Unit,
         beanCallBack: (beanList: List<NewsBean>) -> Unit
     ) {
         val pkg = ConfigHelper.packageName
@@ -83,6 +84,7 @@ object NewsUtils {
             client.newCall(request).enqueue(object : Callback {
                 override fun onFailure(call: Call, e: IOException) {
                     LogEx.logDebug(TAG, "onFailure $e")
+                    errorCallBack.invoke()
                 }
 
                 override fun onResponse(call: Call, response: Response) {