优化

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

@@ -33,6 +33,9 @@ class ChangeCoverDialog() : BaseDialogFragment(),
     private val viewModel: ChangeCoverViewModel by viewModels()
     private val adapter by lazy { CoverAdapter(requireContext(), this) }
 
+    private val startStopMenuItem: MenuItem?
+        get() = binding.toolBar.menu.findItem(R.id.menu_start_stop)
+
     override fun onStart() {
         super.onStart()
         val dm = requireActivity().windowSize
@@ -73,9 +76,15 @@ class ChangeCoverDialog() : BaseDialogFragment(),
         viewModel.searchStateData.observe(viewLifecycleOwner, {
             binding.refreshProgressBar.isAutoLoading = it
             if (it) {
-                stopMenuItem?.setIcon(R.drawable.ic_stop_black_24dp)
+                startStopMenuItem?.let { item ->
+                    item.setIcon(R.drawable.ic_stop_black_24dp)
+                    item.setTitle(R.string.stop)
+                }
             } else {
-                stopMenuItem?.setIcon(R.drawable.ic_refresh_black_24dp)
+                startStopMenuItem?.let { item ->
+                    item.setIcon(R.drawable.ic_refresh_black_24dp)
+                    item.setTitle(R.string.refresh)
+                }
             }
             binding.toolBar.menu.applyTint(requireContext())
         })
@@ -86,14 +95,11 @@ class ChangeCoverDialog() : BaseDialogFragment(),
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
-            R.id.menu_stop -> viewModel.stopSearch()
+            R.id.menu_start_stop -> viewModel.startOrStopSearch()
         }
         return false
     }
 
-    private val stopMenuItem: MenuItem?
-        get() = binding.toolBar.menu.findItem(R.id.menu_stop)
-
     override fun changeTo(coverUrl: String) {
         callBack?.coverChangeTo(coverUrl)
         dismissAllowingStateLoss()

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

@@ -81,6 +81,7 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
 
     private fun startSearch() {
         execute {
+            stopSearch()
             bookSourceList.clear()
             bookSourceList.addAll(appDb.bookSourceDao.allEnabled)
             searchStateData.postValue(true)
@@ -142,14 +143,19 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
         }
     }
 
-    fun stopSearch() {
+    fun startOrStopSearch() {
         if (tasks.isEmpty) {
             startSearch()
         } else {
+            stopSearch()
+        }
+    }
+
+    fun stopSearch() {
         tasks.clear()
+        searchPool?.close()
         searchStateData.postValue(false)
     }
-    }
 
     override fun onCleared() {
         super.onCleared()

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

@@ -140,9 +140,15 @@ class ChangeSourceDialog() : BaseDialogFragment(),
         viewModel.searchStateData.observe(viewLifecycleOwner, {
             binding.refreshProgressBar.isAutoLoading = it
             if (it) {
-                stopMenuItem?.setIcon(R.drawable.ic_stop_black_24dp)
+                startStopMenuItem?.let { item ->
+                    item.setIcon(R.drawable.ic_stop_black_24dp)
+                    item.setTitle(R.string.stop)
+                }
             } else {
-                stopMenuItem?.setIcon(R.drawable.ic_refresh_black_24dp)
+                startStopMenuItem?.let { item ->
+                    item.setIcon(R.drawable.ic_refresh_black_24dp)
+                    item.setTitle(R.string.refresh)
+                }
             }
             binding.toolBar.menu.applyTint(requireContext())
         })
@@ -160,8 +166,8 @@ class ChangeSourceDialog() : BaseDialogFragment(),
         }
     }
 
-    private val stopMenuItem: MenuItem?
+    private val startStopMenuItem: MenuItem?
-        get() = binding.toolBar.menu.findItem(R.id.menu_stop)
+        get() = binding.toolBar.menu.findItem(R.id.menu_start_stop)
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
@@ -178,7 +184,7 @@ class ChangeSourceDialog() : BaseDialogFragment(),
                 putPrefBoolean(PreferKey.changeSourceLoadInfo, !item.isChecked)
                 item.isChecked = !item.isChecked
             }
-            R.id.menu_stop -> viewModel.startOrStopSearch()
+            R.id.menu_start_stop -> viewModel.startOrStopSearch()
             R.id.menu_source_manage -> startActivity<BookSourceActivity>()
             else -> if (item?.groupId == R.id.source_group) {
                 if (!item.isChecked) {

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

@@ -4,7 +4,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <item
-        android:id="@+id/menu_stop"
+        android:id="@+id/menu_start_stop"
         android:title="@string/stop"
         android:icon="@drawable/ic_refresh_white_24dp"
         app:showAsAction="always"

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

@@ -12,7 +12,7 @@
         tools:ignore="AlwaysShowAction" />
 
     <item
-        android:id="@+id/menu_stop"
+        android:id="@+id/menu_start_stop"
         android:title="@string/stop"
         android:icon="@drawable/ic_refresh_white_24dp"
         app:showAsAction="always"