优化

app/src/main/java/io/legado/app/constant/AppConst.kt

@@ -20,6 +20,8 @@ object AppConst {
 
     const val UA_NAME = "User-Agent"
 
+    const val MAX_THREAD = 6
+
     val SCRIPT_ENGINE: ScriptEngine by lazy {
         ScriptEngineManager().getEngineByName("rhino")
     }

app/src/main/java/io/legado/app/model/webBook/SearchModel.kt

@@ -1,5 +1,6 @@
 package io.legado.app.model.webBook
 
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.PreferKey
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.BookSource
@@ -31,7 +32,8 @@ class SearchModel(private val scope: CoroutineScope, private val callBack: CallB
 
     private fun initSearchPool() {
         searchPool?.close()
-        searchPool = Executors.newFixedThreadPool(min(threadCount, 8)).asCoroutineDispatcher()
+        searchPool = Executors
+            .newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
     }
 
     fun search(searchId: Long, key: String) {

app/src/main/java/io/legado/app/service/CacheBookService.kt

@@ -21,7 +21,7 @@ import kotlin.math.min
 class CacheBookService : BaseService() {
     private val threadCount = AppConfig.threadCount
     private var cachePool =
-        Executors.newFixedThreadPool(min(threadCount, 8)).asCoroutineDispatcher()
+        Executors.newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
     private var downloadJob: Job? = null
 
     private var notificationContent = appCtx.getString(R.string.starting_download)

app/src/main/java/io/legado/app/service/CheckSourceService.kt

@@ -26,7 +26,7 @@ import kotlin.math.min
 class CheckSourceService : BaseService() {
     private var threadCount = AppConfig.threadCount
     private var searchCoroutine =
-        Executors.newFixedThreadPool(min(threadCount, 8)).asCoroutineDispatcher()
+        Executors.newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
     private var tasks = CompositeCoroutine()
     private val allIds = ArrayList<String>()
     private val checkedIds = ArrayList<String>()

app/src/main/java/io/legado/app/ui/book/changecover/ChangeCoverViewModel.kt

@@ -5,6 +5,7 @@ import android.os.Bundle
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
 import io.legado.app.base.BaseViewModel
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppPattern
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.BookSource
@@ -45,7 +46,8 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
     }
 
     private fun initSearchPool() {
-        searchPool = Executors.newFixedThreadPool(min(threadCount,8)).asCoroutineDispatcher()
+        searchPool = Executors
+            .newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
         searchIndex = -1
     }
 

app/src/main/java/io/legado/app/ui/book/changesource/ChangeSourceViewModel.kt

@@ -5,6 +5,7 @@ import android.os.Bundle
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.viewModelScope
 import io.legado.app.base.BaseViewModel
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppPattern
 import io.legado.app.constant.PreferKey
 import io.legado.app.data.appDb
@@ -53,7 +54,8 @@ class ChangeSourceViewModel(application: Application) : BaseViewModel(applicatio
     }
 
     private fun initSearchPool() {
-        searchPool = Executors.newFixedThreadPool(min(threadCount,8)).asCoroutineDispatcher()
+        searchPool = Executors
+            .newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
         searchIndex = -1
     }
 

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

@@ -20,7 +20,6 @@ import io.legado.app.data.appDb
 import io.legado.app.data.entities.BookSource
 import io.legado.app.databinding.ActivityBookSourceBinding
 import io.legado.app.databinding.DialogEditTextBinding
-import io.legado.app.help.AppConfig
 import io.legado.app.help.LocalConfig
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.theme.ATH
@@ -41,7 +40,6 @@ import io.legado.app.utils.*
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.*
-import kotlin.math.min
 
 class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceViewModel>(),
     PopupMenu.OnMenuItemClickListener,
@@ -484,8 +482,12 @@ class BookSourceActivity : VMBaseActivity<ActivityBookSourceBinding, BookSourceV
                     delay(300L)
                 }
             }.collect {
-                adapter.notifyItemRangeChanged(firstIndex, lastIndex + 1, bundleOf(Pair("checkSourceMessage", null)))
+                adapter.notifyItemRangeChanged(
-                if (!Debug.isChecking || (refreshCount > (600 * (lastIndex + 1 - firstIndex) / min(AppConfig.threadCount,8)))) {
+                    firstIndex,
+                    lastIndex + 1,
+                    bundleOf(Pair("checkSourceMessage", null))
+                )
+                if (!Debug.isChecking) {
                     Debug.finishChecking()
                     this.cancel()
                 }

app/src/main/java/io/legado/app/ui/main/MainViewModel.kt

@@ -2,6 +2,7 @@ package io.legado.app.ui.main
 
 import android.app.Application
 import io.legado.app.base.BaseViewModel
+import io.legado.app.constant.AppConst
 import io.legado.app.constant.BookType
 import io.legado.app.constant.EventBus
 import io.legado.app.data.appDb
@@ -21,7 +22,7 @@ import kotlin.math.min
 class MainViewModel(application: Application) : BaseViewModel(application) {
     private var threadCount = AppConfig.threadCount
     private var upTocPool =
-        Executors.newFixedThreadPool(min(threadCount, 8)).asCoroutineDispatcher()
+        Executors.newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
     val updateList = CopyOnWriteArraySet<String>()
     private val bookMap = ConcurrentHashMap<String, Book>()
 
@@ -36,7 +37,8 @@ class MainViewModel(application: Application) : BaseViewModel(application) {
     fun upPool() {
         threadCount = AppConfig.threadCount
         upTocPool.close()
-        upTocPool = Executors.newFixedThreadPool(min(threadCount, 8)).asCoroutineDispatcher()
+        upTocPool = Executors
+            .newFixedThreadPool(min(threadCount, AppConst.MAX_THREAD)).asCoroutineDispatcher()
     }
 
     fun upAllBookToc() {