优化

app/src/main/java/io/legado/app/ui/book/search/SearchActivity.kt

@@ -407,7 +407,7 @@ class SearchActivity : VMBaseActivity<ActivityBookSearchBinding, SearchViewModel
     }
 
     private fun alertSearchScope() {
-
+        showDialogFragment<SearchScopeDialog>()
     }
 
     private fun alertClearHistory() {

app/src/main/java/io/legado/app/ui/book/search/SearchScopeDialog.kt

@@ -0,0 +1,16 @@
+package io.legado.app.ui.book.search
+
+import android.os.Bundle
+import android.view.View
+import io.legado.app.R
+import io.legado.app.base.BaseDialogFragment
+
+class SearchScopeDialog : BaseDialogFragment(R.layout.dialog_search_scope, true) {
+
+
+    override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
+        TODO("Not yet implemented")
+    }
+
+
+}

app/src/main/res/layout/dialog_search_scope.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</androidx.constraintlayout.widget.ConstraintLayout>