优化

app/src/main/java/io/legado/app/ui/widget/recycler/HeaderAdapterDataObserver.kt

@@ -1,8 +1,8 @@
-package io.legado.app.help
+package io.legado.app.ui.widget.recycler
 
 import androidx.recyclerview.widget.RecyclerView
 
-internal class AdapterDataObserverHeader(
+internal class HeaderAdapterDataObserver(
     private var adapterDataObserver: RecyclerView.AdapterDataObserver,
     private var headerCount: Int
 ) : RecyclerView.AdapterDataObserver() {

app/src/main/java/io/legado/app/ui/widget/recycler/UpLinearLayoutManager.kt

@@ -4,12 +4,7 @@ import android.content.Context
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.LinearSmoothScroller
 
-class UpLinearLayoutManager: LinearLayoutManager {
-    val context: Context
-
-    constructor(context: Context) : super(context) {
-        this.context = context
-    }
+class UpLinearLayoutManager(val context: Context) : LinearLayoutManager(context) {
 
     fun smoothScrollToPosition(position: Int) {
         smoothScrollToPosition(position, 0)