feat: 优化代码

app/src/main/java/io/legado/app/data/dao/BookDao.kt

@@ -57,6 +57,9 @@ interface BookDao {
     @get:Query("SELECT COUNT(*) FROM books")
     val allBookCount: Int
 
+    @get:Query("select max(`order`) from books")
+    val maxOrder: Int
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg book: Book)
 

app/src/main/java/io/legado/app/help/ItemTouchCallback.kt

@@ -106,7 +106,7 @@ class ItemTouchCallback : ItemTouchHelper.Callback() {
 
     override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
         super.clearView(recyclerView, viewHolder)
-        onItemTouchCallbackListener?.clearView(recyclerView, viewHolder)
+        onItemTouchCallbackListener?.onClearView(recyclerView, viewHolder)
     }
 
     interface OnItemTouchCallbackListener {
@@ -131,7 +131,10 @@ class ItemTouchCallback : ItemTouchHelper.Callback() {
             return true
         }
 
-        fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+        /**
+         * 手指松开
+         */
+        fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
 
         }
 

app/src/main/java/io/legado/app/ui/audio/AudioPlayViewModel.kt

@@ -91,6 +91,7 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
     fun changeTo(book1: Book) {
         execute {
             AudioPlay.book?.let {
+                book1.order = it.order
                 App.db.bookDao().delete(it)
             }
             withContext(Dispatchers.Main) {

app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt

@@ -2,6 +2,7 @@ package io.legado.app.ui.book.arrange
 
 import android.content.Context
 import android.view.View
+import androidx.recyclerview.widget.RecyclerView
 import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
@@ -10,6 +11,7 @@ import io.legado.app.data.entities.BookGroup
 import io.legado.app.help.ItemTouchCallback
 import kotlinx.android.synthetic.main.item_arrange_book.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
+import java.util.*
 
 class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
     SimpleRecyclerAdapter<Book>(context, R.layout.item_arrange_book),
@@ -120,6 +122,21 @@ class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
         return groupNames.joinToString(",")
     }
 
+    private var isMoved = false
+
+    override fun onMove(srcPosition: Int, targetPosition: Int): Boolean {
+        Collections.swap(getItems(), srcPosition, targetPosition)
+        notifyItemMoved(srcPosition, targetPosition)
+        isMoved = true
+        return true
+    }
+
+    override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+        if (isMoved) {
+
+        }
+    }
+
     interface CallBack {
         val groupList: List<BookGroup>
         fun upSelectCount()

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

@@ -217,7 +217,7 @@ class GroupManageDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
             return true
         }
 
-        override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+        override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
             if (isMoved) {
                 for ((index, item) in getItems().withIndex()) {
                     item.order = index + 1

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

@@ -203,7 +203,7 @@ class GroupSelectDialog : DialogFragment(), Toolbar.OnMenuItemClickListener {
             return true
         }
 
-        override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+        override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
             if (isMoved) {
                 for ((index, item) in getItems().withIndex()) {
                     item.order = index + 1

app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt

@@ -133,6 +133,7 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
         execute {
             if (inBookshelf) {
                 bookData.value?.let {
+                    book.order = it.order
                     App.db.bookDao().delete(it)
                 }
                 App.db.bookDao().insert(book)
@@ -164,6 +165,9 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
     fun saveBook(success: (() -> Unit)? = null) {
         execute {
             bookData.value?.let { book ->
+                if (book.order == 0) {
+                    book.order = App.db.bookDao().maxOrder + 1
+                }
                 App.db.bookDao().insert(book)
             }
         }.onSuccess {
@@ -184,6 +188,9 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
     fun addToBookshelf(success: (() -> Unit)?) {
         execute {
             bookData.value?.let { book ->
+                if (book.order == 0) {
+                    book.order = App.db.bookDao().maxOrder + 1
+                }
                 App.db.bookDao().insert(book)
             }
             chapterListData.value?.let {

app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt

@@ -136,6 +136,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         execute {
             ReadBook.upMsg(null)
             ReadBook.book?.let {
+                book1.order = it.order
                 App.db.bookDao().delete(it)
             }
             ReadBook.prevTextChapter = null

app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt

@@ -252,8 +252,8 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
             return super.onMove(srcPosition, targetPosition)
         }
 
-        override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
-            super.clearView(recyclerView, viewHolder)
+        override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+            super.onClearView(recyclerView, viewHolder)
             if (isMoved) {
                 for ((index, item) in getItems().withIndex()) {
                     item.serialNumber = index + 1

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

@@ -185,7 +185,7 @@ class BookSourceAdapter(context: Context, val callBack: CallBack) :
 
     private val movedItems = hashSetOf<BookSource>()
 
-    override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+    override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
         if (movedItems.isNotEmpty()) {
             callBack.update(*movedItems.toTypedArray())
             movedItems.clear()

app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt

@@ -43,6 +43,7 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
                     )
                     WebBook(bookSource).getBookInfo(book, this)
                         .onSuccess(IO) {
+                            it.order = App.db.bookDao().maxOrder + 1
                             App.db.bookDao().insert(it)
                             successCount++
                         }.onError {

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

@@ -148,7 +148,7 @@ class ReplaceRuleAdapter(context: Context, var callBack: CallBack) :
 
     private val movedItems = linkedSetOf<ReplaceRule>()
 
-    override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+    override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
         if (movedItems.isNotEmpty()) {
             callBack.update(*movedItems.toTypedArray())
             movedItems.clear()

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

@@ -139,7 +139,7 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
 
     private val movedItems = hashSetOf<RssSource>()
 
-    override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+    override fun onClearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
         if (movedItems.isNotEmpty()) {
             callBack.update(*movedItems.toTypedArray())
             movedItems.clear()