feat: 优化代码

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

@@ -19,6 +19,9 @@ interface TxtTocRuleDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg rule: TxtTocRule)
 
+    @Update(onConflict = OnConflictStrategy.REPLACE)
+    fun update(vararg rule: TxtTocRule)
+
     @Delete
     fun delete(vararg rule: TxtTocRule)
 }

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

@@ -128,7 +128,7 @@ class ItemTouchCallback : ItemTouchHelper.Callback() {
          * @return 开发者处理了操作应该返回true，开发者没有处理就返回false
          */
         fun onMove(srcPosition: Int, targetPosition: Int): Boolean {
-            return false
+            return true
         }
 
         fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {

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

@@ -12,6 +12,7 @@ import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
@@ -19,16 +20,22 @@ import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.constant.Theme
 import io.legado.app.data.entities.TxtTocRule
+import io.legado.app.help.ItemTouchCallback
 import io.legado.app.utils.applyTint
 import io.legado.app.utils.getVerticalDivider
 import kotlinx.android.synthetic.main.dialog_toc_regex.*
 import kotlinx.android.synthetic.main.item_toc_regex.view.*
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.launch
+import java.util.*
 
 
 class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
 
     private lateinit var adapter: TocRegexAdapter
     private var tocRegexLiveData: LiveData<List<TxtTocRule>>? = null
+    var selectedName: String? = null
+    var durRegex: String? = null
 
     override fun onStart() {
         super.onStart()
@@ -47,6 +54,7 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+        durRegex = arguments?.getString("tocRegex")
         tool_bar.setTitle(R.string.txt_toc_regex)
         tool_bar.inflateMenu(R.menu.txt_toc_regex)
         tool_bar.menu.applyTint(requireContext(), Theme.getTheme())
@@ -60,33 +68,89 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(recycler_view.getVerticalDivider())
         recycler_view.adapter = adapter
+        val itemTouchCallback = ItemTouchCallback()
+        itemTouchCallback.onItemTouchCallbackListener = adapter
+        itemTouchCallback.isCanDrag = true
     }
 
     private fun initData() {
         tocRegexLiveData?.removeObservers(viewLifecycleOwner)
         tocRegexLiveData = App.db.txtTocRule().observeAll()
-        tocRegexLiveData?.observe(viewLifecycleOwner, Observer {
-            adapter.setItems(it)
+        tocRegexLiveData?.observe(viewLifecycleOwner, Observer { tocRules ->
+            initSelectedName(tocRules)
+            adapter.setItems(tocRules)
         })
     }
 
-    override fun onMenuItemClick(item: MenuItem?): Boolean {
+    private fun initSelectedName(tocRules: List<TxtTocRule>) {
+        if (selectedName == null && durRegex != null) {
+            tocRules.forEach {
+                if (durRegex == it.rule) {
+                    selectedName = it.name
+                    return@forEach
+                }
+            }
+            if (selectedName == null) {
+                selectedName = ""
+            }
+        }
+    }
 
+    override fun onMenuItemClick(item: MenuItem?): Boolean {
+        when (item?.itemId) {
+            R.id.menu_add -> {
+            }
+            R.id.menu_default -> {
+            }
+        }
         return false
     }
 
 
     inner class TocRegexAdapter(context: Context) :
-        SimpleRecyclerAdapter<TxtTocRule>(context, R.layout.item_toc_regex) {
+        SimpleRecyclerAdapter<TxtTocRule>(context, R.layout.item_toc_regex),
+        ItemTouchCallback.OnItemTouchCallbackListener {
 
         override fun convert(holder: ItemViewHolder, item: TxtTocRule, payloads: MutableList<Any>) {
             holder.itemView.apply {
+                if (payloads.isEmpty()) {
                     rb_regex_name.text = item.name
+                    rb_regex_name.isChecked = item.name == selectedName
+                } else {
+                    rb_regex_name.isChecked = item.name == selectedName
+                }
             }
         }
 
         override fun registerListener(holder: ItemViewHolder) {
+            holder.itemView.rb_regex_name.setOnCheckedChangeListener { buttonView, isChecked ->
+                if (buttonView.isPressed && isChecked) {
+                    selectedName = getItem(holder.layoutPosition)?.name
+                    updateItems(0, itemCount - 1, true)
+                }
+            }
+        }
+
+        private var isMoved = false
 
+        override fun onMove(srcPosition: Int, targetPosition: Int): Boolean {
+            Collections.swap(getItems(), srcPosition, targetPosition)
+            notifyItemMoved(srcPosition, targetPosition)
+            isMoved = true
+            return super.onMove(srcPosition, targetPosition)
+        }
+
+        override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
+            super.clearView(recyclerView, viewHolder)
+            if (isMoved) {
+                for ((index, item) in getItems().withIndex()) {
+                    item.serialNumber = index + 1
+                }
+                launch(IO) {
+                    App.db.txtTocRule().update(*getItems().toTypedArray())
+                }
+            }
+            isMoved = false
         }
     }
 

app/src/main/res/menu/txt_toc_regex.xml

@@ -1,11 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android"
+<menu xmlns:tools="http://schemas.android.com/tools"
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <item
         android:id="@+id/menu_add"
         android:title="@string/add"
         android:icon="@drawable/ic_add"
-        app:showAsAction="always" />
+        app:showAsAction="always"
+        tools:ignore="AlwaysShowAction" />
+
+    <item
+        android:id="@+id/menu_default"
+        android:title="@string/import_default_rule"
+        app:showAsAction="never" />
 
 </menu>

app/src/main/res/values/strings.xml

@@ -620,4 +620,5 @@
     <string name="share_layout">共用布局</string>
     <string name="title_center">标题居中</string>
     <string name="browser">浏览器</string>
+    <string name="import_default_rule">导入默认规则</string>
 </resources>