up

app/src/main/java/io/legado/app/data/dao/RssSourceDao.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.Query
 import io.legado.app.data.entities.RssSource
@@ -9,8 +9,8 @@ import io.legado.app.data.entities.RssSource
 interface RssSourceDao {
 
     @Query("SELECT * FROM rssSources")
-    fun observeAll(): DataSource.Factory<Int, RssSource>
+    fun liveAll(): LiveData<List<RssSource>>
 
     @Query("SELECT * FROM rssSources where enabled = 1")
-    fun observeEnabled(): DataSource.Factory<Int, RssSource>
+    fun liveEnabled(): LiveData<List<RssSource>>
 }

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

@@ -1,48 +1,19 @@
 package io.legado.app.ui.main.rss
 
-import android.view.LayoutInflater
+import android.content.Context
-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.base.adapter.ItemViewHolder
+import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.RssSource
 
-class RssAdapter : PagedListAdapter<RssSource, RssAdapter.MyViewHolder>(DIFF_CALLBACK) {
+class RssAdapter(context: Context, val callBack: CallBack) :
+    SimpleRecyclerAdapter<RssSource>(context, R.layout.item_rss) {
 
-    companion object {
+    override fun convert(holder: ItemViewHolder, item: RssSource, payloads: MutableList<Any>) {
-        @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) {
 
     }
 
+    interface CallBack {
+        fun openRss()
     }
 }

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

@@ -2,22 +2,18 @@ package io.legado.app.ui.main.rss
 
 import android.os.Bundle
 import android.view.View
-import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
-import androidx.paging.LivePagedListBuilder
-import androidx.paging.PagedList
 import androidx.recyclerview.widget.GridLayoutManager
 import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.BaseFragment
-import io.legado.app.data.entities.RssSource
 import io.legado.app.lib.theme.ATH
 import kotlinx.android.synthetic.main.fragment_rss.*
 
-class RssFragment : BaseFragment(R.layout.fragment_rss) {
+class RssFragment : BaseFragment(R.layout.fragment_rss),
+    RssAdapter.CallBack {
 
     private lateinit var adapter: RssAdapter
-    private var rssLiveData: LiveData<PagedList<RssSource>>? = null
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         initRecyclerView()
@@ -26,14 +22,18 @@ class RssFragment : BaseFragment(R.layout.fragment_rss) {
 
     private fun initRecyclerView() {
         ATH.applyEdgeEffectColor(recycler_view)
-        adapter = RssAdapter()
+        adapter = RssAdapter(requireContext(), this)
         recycler_view.layoutManager = GridLayoutManager(requireContext(), 4)
         recycler_view.adapter = adapter
     }
 
     private fun initData() {
-        rssLiveData?.removeObservers(viewLifecycleOwner)
+        App.db.rssSourceDao().liveEnabled().observe(viewLifecycleOwner, Observer {
-        rssLiveData = LivePagedListBuilder(App.db.rssSourceDao().observeEnabled(), 50).build()
+            adapter.setItems(it)
-        rssLiveData?.observe(viewLifecycleOwner, Observer { adapter.submitList(it) })
+        })
+    }
+
+    override fun openRss() {
+
     }
 }