diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index c90f6b7bf..8d5d2b0bc 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -6,7 +6,6 @@ import android.content.Intent
 import android.content.res.Configuration
 import android.os.Bundle
 import android.view.*
-import android.view.ViewGroup.LayoutParams.WRAP_CONTENT
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.core.view.get
 import androidx.core.view.isVisible
@@ -475,27 +474,17 @@ class ReadBookActivity : ReadBookBaseActivity(),
     /**
      * 显示文本操作菜单
      */
-    override fun showTextActionMenu() = binding.run {
-        textActionMenu.contentView.measure(
-            View.MeasureSpec.UNSPECIFIED,
-            View.MeasureSpec.UNSPECIFIED
+    override fun showTextActionMenu() {
+        val nbh = if (ReadBookConfig.hideNavigationBar) navigationBarHeight else 0
+        textActionMenu.show(
+            binding.textMenuPosition,
+            binding.root.height + nbh,
+            binding.textMenuPosition.x.toInt(),
+            binding.textMenuPosition.y.toInt(),
+            binding.cursorLeft.y.toInt() + binding.cursorLeft.height,
+            binding.cursorRight.x.toInt(),
+            binding.cursorRight.y.toInt() + binding.cursorRight.height
         )
-        val popupHeight = textActionMenu.contentView.measuredHeight
-        val x = textMenuPosition.x.toInt()
-        var y = textMenuPosition.y.toInt() - popupHeight
-        if (y < statusBarHeight) {
-            y = (cursorLeft.y + cursorLeft.height).toInt()
-        }
-        if (cursorRight.y > y && cursorRight.y < y + popupHeight) {
-            y = (cursorRight.y + cursorRight.height).toInt()
-        }
-        if (!textActionMenu.isShowing) {
-            textActionMenu.showAtLocation(
-                textMenuPosition, Gravity.TOP or Gravity.START, x, y
-            )
-        } else {
-            textActionMenu.update(x, y, WRAP_CONTENT, WRAP_CONTENT)
-        }
     }
 
     /**
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
index a116db5dc..d0db5a313 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
@@ -149,11 +149,7 @@ abstract class ReadBookBaseActivity :
         binding.navigationBar.run {
             if (bottomDialog > 0 || binding.readMenu.isVisible) {
                 val navigationBarHeight =
-                    if (ReadBookConfig.hideNavigationBar) {
-                        activity?.navigationBarHeight ?: 0
-                    } else {
-                        0
-                    }
+                    if (ReadBookConfig.hideNavigationBar) navigationBarHeight else 0
                 when (navigationBarGravity) {
                     Gravity.BOTTOM -> layoutParams =
                         (layoutParams as FrameLayout.LayoutParams).apply {
diff --git a/app/src/main/java/io/legado/app/ui/book/read/TextActionMenu.kt b/app/src/main/java/io/legado/app/ui/book/read/TextActionMenu.kt
index ccc3f09cb..fcb969ecb 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/TextActionMenu.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/TextActionMenu.kt
@@ -9,9 +9,7 @@ import android.net.Uri
 import android.os.Build
 import android.speech.tts.TextToSpeech
 import android.speech.tts.UtteranceProgressListener
-import android.view.LayoutInflater
-import android.view.Menu
-import android.view.ViewGroup
+import android.view.*
 import android.widget.PopupWindow
 import androidx.annotation.RequiresApi
 import androidx.appcompat.view.SupportMenuInflater
@@ -41,6 +39,7 @@ class TextActionMenu(private val context: Context, private val callBack: CallBac
     private val ttsListener by lazy {
         TTSUtteranceListener()
     }
+    private val expandTextMenu get() = context.getPrefBoolean(PreferKey.expandTextMenu)
 
     init {
         @SuppressLint("InflateParams")
@@ -86,7 +85,6 @@ class TextActionMenu(private val context: Context, private val callBack: CallBac
     }
 
     fun upMenu() {
-        val expandTextMenu = context.getPrefBoolean(PreferKey.expandTextMenu)
         if (expandTextMenu) {
             adapter.setItems(menuItems)
             binding.ivMenuMore.gone()
@@ -96,6 +94,67 @@ class TextActionMenu(private val context: Context, private val callBack: CallBac
         }
     }
 
+    fun show(
+        view: View,
+        windowHeight: Int,
+        startX: Int,
+        startTopY: Int,
+        startBottomY: Int,
+        endX: Int,
+        endBottomY: Int
+    ) {
+        if (expandTextMenu) {
+            when {
+                startTopY > 300 -> {
+                    showAtLocation(
+                        view,
+                        Gravity.BOTTOM or Gravity.START,
+                        startX,
+                        windowHeight - startTopY
+                    )
+                }
+                endBottomY - startBottomY > 500 -> {
+                    showAtLocation(view, Gravity.TOP or Gravity.START, startX, startBottomY)
+                }
+                else -> {
+                    showAtLocation(view, Gravity.TOP or Gravity.START, endX, endBottomY)
+                }
+            }
+        } else {
+            contentView.measure(
+                View.MeasureSpec.UNSPECIFIED,
+                View.MeasureSpec.UNSPECIFIED,
+            )
+            val popupHeight = contentView.measuredHeight
+            when {
+                startBottomY > 300 -> {
+                    showAtLocation(
+                        view,
+                        Gravity.TOP or Gravity.START,
+                        startX,
+                        startTopY - popupHeight
+                    )
+                }
+                endBottomY - startBottomY > 500 -> {
+                    showAtLocation(
+                        view,
+                        Gravity.TOP or Gravity.START,
+                        startX,
+                        startBottomY
+                    )
+                }
+                else -> {
+                    showAtLocation(
+                        view,
+                        Gravity.TOP or Gravity.START,
+                        endX,
+                        endBottomY
+                    )
+                }
+            }
+        }
+    }
+
     inner class Adapter(context: Context) :
         RecyclerAdapter<MenuItemImpl, ItemTextBinding>(context) {