优化

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

@@ -105,8 +105,8 @@ class BookInfoActivity :
         binding.flAction.setBackgroundColor(bottomBackground)
         binding.tvShelf.setTextColor(getPrimaryTextColor(ColorUtils.isColorLight(bottomBackground)))
         binding.tvToc.text = getString(R.string.toc_s, getString(R.string.loading))
-        viewModel.bookData.observe(this, { showBook(it) })
-        viewModel.chapterListData.observe(this, { upLoading(false, it) })
+        viewModel.bookData.observe(this) { showBook(it) }
+        viewModel.chapterListData.observe(this) { upLoading(false, it) }
         viewModel.initData(intent)
         initOnClick()
     }
@@ -197,6 +197,7 @@ class BookInfoActivity :
                     it.setLimitContentLength(!item.isChecked)
                     viewModel.loadBookInfo(it, false)
                 }
+                item.isChecked = !item.isChecked
                 if (item.isChecked) longToastOnUi(R.string.need_more_time_load_content)
             }
         }

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

@@ -28,7 +28,7 @@ class BookInfoEditActivity :
     override val viewModel by viewModels<BookInfoEditViewModel>()
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
-        viewModel.bookData.observe(this, { upView(it) })
+        viewModel.bookData.observe(this) { upView(it) }
         if (viewModel.bookData.value == null) {
             intent.getStringExtra("bookUrl")?.let {
                 viewModel.loadBook(it)

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

@@ -24,14 +24,13 @@ import io.legado.app.databinding.ItemTocRegexBinding
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.theme.backgroundColor
 import io.legado.app.lib.theme.primaryColor
+import io.legado.app.model.ReadBook
 import io.legado.app.ui.widget.recycler.ItemTouchCallback
 import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.utils.*
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
-import java.util.*
 
 class TocRegexDialog() : BaseDialogFragment(R.layout.dialog_toc_regex),
     Toolbar.OnMenuItemClickListener {
@@ -60,6 +59,8 @@ class TocRegexDialog() : BaseDialogFragment(R.layout.dialog_toc_regex),
         binding.toolBar.setTitle(R.string.txt_toc_regex)
         binding.toolBar.inflateMenu(R.menu.txt_toc_regex)
         binding.toolBar.menu.applyTint(requireContext())
+        binding.toolBar.menu.findItem(R.id.menu_limit_content_length)
+            ?.isChecked = ReadBook.book?.getLimitContentLength() == true
         binding.toolBar.setOnMenuItemClickListener(this)
         initView()
         initData()
@@ -114,6 +115,11 @@ class TocRegexDialog() : BaseDialogFragment(R.layout.dialog_toc_regex),
             R.id.menu_add -> editRule()
             R.id.menu_default -> viewModel.importDefault()
             R.id.menu_import -> showImportDialog()
+            R.id.menu_limit_content_length -> {
+                ReadBook.book?.setLimitContentLength(!item.isChecked)
+                item.isChecked = !item.isChecked
+                if (item.isChecked) context?.longToastOnUi(R.string.need_more_time_load_content)
+            }
         }
         return false
     }

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

@@ -20,4 +20,10 @@
         android:title="@string/import_replace_rule_on_line"
         app:showAsAction="never" />
 
+    <item
+        android:id="@+id/menu_limit_content_length"
+        android:title="@string/limit_content_length"
+        android:checkable="true"
+        app:showAsAction="never" />
+
 </menu>