up

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

@@ -1,13 +1,48 @@
 package io.legado.app.ui.main.rss
 
+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 io.legado.app.R
+import io.legado.app.data.entities.RssSource
 
-class RssAdapter {
+class RssAdapter : PagedListAdapter<RssSource, RssAdapter.MyViewHolder>(DIFF_CALLBACK) {
 
+    companion object {
+        @JvmField
+        val DIFF_CALLBACK = object : DiffUtil.ItemCallback<RssSource>() {
+            override fun areItemsTheSame(oldItem: RssSource, newItem: RssSource): Boolean =
+                oldItem.sourceUrl == newItem.sourceUrl
+
+            override fun areContentsTheSame(oldItem: RssSource, newItem: RssSource): Boolean =
+                oldItem.sourceName == newItem.sourceName
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
+        return MyViewHolder(
+            LayoutInflater.from(parent.context).inflate(
+                R.layout.item_rss,
+                parent,
+                false
+            )
+        )
+    }
+
+    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
+        getItem(position)?.let {
+            holder.onBind(it)
+        }
+    }
 
     class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
 
+        fun onBind(rssSource: RssSource) {
+
+        }
 
     }
 }

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

@@ -28,7 +28,7 @@ class RssFragment : BaseFragment(R.layout.fragment_rss) {
         ATH.applyEdgeEffectColor(recycler_view)
         adapter = RssAdapter()
         recycler_view.layoutManager = GridLayoutManager(requireContext(), 4)
-
+        recycler_view.adapter = adapter
     }
 
     private fun initData() {

app/src/main/res/layout/item_rss.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</LinearLayout>