优化

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

@@ -278,10 +278,9 @@ class ReadBookActivity : ReadBookBaseActivity(),
                     putExtra("author", it.author)
                 }
             }
-            R.id.menu_toc_regex -> TocRegexDialog.show(
-                supportFragmentManager,
-                ReadBook.book?.tocUrl
-            )
+            R.id.menu_toc_regex -> supportFragmentManager.showDialog<TocRegexDialog> {
+                putString("tocRegex", ReadBook.book?.tocUrl)
+            }
             R.id.menu_reverse_content -> ReadBook.book?.let {
                 viewModel.reverseContent(it)
             }

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

@@ -8,7 +8,6 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.widget.Toolbar
-import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.viewModels
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.RecyclerView
@@ -262,16 +261,6 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
         }
     }
 
-    companion object {
-        fun show(fragmentManager: FragmentManager, tocRegex: String? = null) {
-            val dialog = TocRegexDialog()
-            val bundle = Bundle()
-            bundle.putString("tocRegex", tocRegex)
-            dialog.arguments = bundle
-            dialog.show(fragmentManager, "tocRegexDialog")
-        }
-    }
-
     interface CallBack {
         fun onTocRegexDialogResult(tocRegex: String) {}
     }