feat: 优化代码

app/src/main/java/io/legado/app/base/adapter/CommonRecyclerAdapter.kt

@@ -5,6 +5,7 @@ import android.util.SparseArray
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.GridLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import java.util.*
@@ -122,7 +123,7 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
         }
     }
 
-    fun setItems(items: List<ITEM>?, notify: Boolean = true) {
+    fun setItems(items: List<ITEM>?) {
         synchronized(lock) {
             if (this.items.isNotEmpty()) {
                 this.items.clear()
@@ -130,9 +131,19 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
             if (items != null) {
                 this.items.addAll(items)
             }
-            if (notify) {
-                notifyDataSetChanged()
+            notifyDataSetChanged()
+        }
+    }
+
+    fun setItems(items: List<ITEM>?, diffResult: DiffUtil.DiffResult) {
+        synchronized(lock) {
+            if (this.items.isNotEmpty()) {
+                this.items.clear()
+            }
+            if (items != null) {
+                this.items.addAll(items)
             }
+            diffResult.dispatchUpdatesTo(this)
         }
     }
 

app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt

@@ -82,8 +82,7 @@ class GroupManageDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
         App.db.bookGroupDao().liveDataAll().observe(viewLifecycleOwner, Observer {
             val diffResult =
                 DiffUtil.calculateDiff(GroupDiffCallBack(ArrayList(adapter.getItems()), it))
-            adapter.setItems(it, false)
-            diffResult.dispatchUpdatesTo(adapter)
+            adapter.setItems(it, diffResult)
         })
         val itemTouchCallback = ItemTouchCallback()
         itemTouchCallback.onItemTouchCallbackListener = adapter

app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt

@@ -285,8 +285,7 @@ class SearchActivity : VMBaseActivity<SearchViewModel>(R.layout.activity_book_se
         }
         refreshTime = System.currentTimeMillis()
         val diffResult = DiffUtil.calculateDiff(DiffCallBack(ArrayList(adapter.getItems()), items))
-        adapter.setItems(items, false)
-        diffResult.dispatchUpdatesTo(adapter)
+        adapter.setItems(items, diffResult)
     }
 
     /**

app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt

@@ -136,8 +136,7 @@ class BookSourceActivity : VMBaseActivity<BookSourceViewModel>(R.layout.activity
         bookSourceLiveDate?.observe(this, Observer {
             val diffResult = DiffUtil
                 .calculateDiff(DiffCallBack(ArrayList(adapter.getItems()), it))
-            adapter.setItems(it, false)
-            diffResult.dispatchUpdatesTo(adapter)
+            adapter.setItems(it, diffResult)
             upCountView()
         })
     }

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt

@@ -106,8 +106,7 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
         bookshelfLiveData?.observe(this, Observer {
             val diffResult = DiffUtil
                 .calculateDiff(BooksDiffCallBack(ArrayList(booksAdapter.getItems()), it))
-            booksAdapter.setItems(it, false)
-            diffResult.dispatchUpdatesTo(booksAdapter)
+            booksAdapter.setItems(it, diffResult)
         })
     }
 

app/src/main/java/io/legado/app/ui/replacerule/ReplaceRuleActivity.kt

@@ -134,8 +134,7 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
             }
             val diffResult =
                 DiffUtil.calculateDiff(DiffCallBack(ArrayList(adapter.getItems()), it))
-            adapter.setItems(it, false)
-            diffResult.dispatchUpdatesTo(adapter)
+            adapter.setItems(it, diffResult)
             dataInit = true
             upCountView()
         })

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceActivity.kt

@@ -186,8 +186,7 @@ class RssSourceActivity : VMBaseActivity<RssSourceViewModel>(R.layout.activity_r
         sourceLiveData?.observe(this, Observer {
             val diffResult = DiffUtil
                 .calculateDiff(DiffCallBack(adapter.getItems(), it))
-            adapter.setItems(it, false)
-            diffResult.dispatchUpdatesTo(adapter)
+            adapter.setItems(it, diffResult)
             upCountView()
         })
     }