diff --git a/app/src/main/java/io/legado/app/help/ReadBookConfig.kt b/app/src/main/java/io/legado/app/help/ReadBookConfig.kt
index 7d852791c..3708a7a1e 100644
--- a/app/src/main/java/io/legado/app/help/ReadBookConfig.kt
+++ b/app/src/main/java/io/legado/app/help/ReadBookConfig.kt
@@ -5,6 +5,9 @@ import android.graphics.drawable.ColorDrawable
 import android.graphics.drawable.Drawable
 import io.legado.app.App
 import io.legado.app.utils.*
+import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
 import java.io.BufferedWriter
 import java.io.File
 import java.io.FileWriter
@@ -60,16 +63,18 @@ object ReadBookConfig {
     }
 
     fun save() {
-        val json = GSON.toJson(configList)
-        val configFile = File(App.INSTANCE.filesDir.absolutePath + File.separator + fileName)
-        //获取流并存储
-        try {
-            BufferedWriter(FileWriter(configFile)).use { writer ->
-                writer.write(json)
-                writer.flush()
+        GlobalScope.launch(IO) {
+            val json = GSON.toJson(configList)
+            val configFile = File(App.INSTANCE.filesDir.absolutePath + File.separator + fileName)
+            //获取流并存储
+            try {
+                BufferedWriter(FileWriter(configFile)).use { writer ->
+                    writer.write(json)
+                    writer.flush()
+                }
+            } catch (e: IOException) {
+                e.printStackTrace()
             }
-        } catch (e: IOException) {
-            e.printStackTrace()
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/readbook/config/ReadStyleDialog.kt b/app/src/main/java/io/legado/app/ui/readbook/config/ReadStyleDialog.kt
index 08603ddf6..a04803537 100644
--- a/app/src/main/java/io/legado/app/ui/readbook/config/ReadStyleDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/readbook/config/ReadStyleDialog.kt
@@ -6,6 +6,7 @@ import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.SeekBar
 import androidx.core.view.get
 import androidx.fragment.app.DialogFragment
 import io.legado.app.R
@@ -56,18 +57,57 @@ class ReadStyleDialog : DialogFragment() {
         }
     }
 
+    override fun onDestroy() {
+        super.onDestroy()
+        ReadBookConfig.save()
+    }
+
     private fun initData() {
         requireContext().getPrefInt("pageAnim").let {
             if (it >= 0 && it < rg_page_anim.childCount) {
                 rg_page_anim.check(rg_page_anim[it].id)
             }
         }
+        ReadBookConfig.getConfig().let {
+            tv_text_bold.isSelected = it.textBold
+            seek_text_size.progress = it.textSize - 5
+            seek_text_letter_spacing.progress = (it.letterSpacing * 10).toInt() + 5
+            seek_line_size.progress = it.lineSpacingExtra.toInt()
+        }
         setBg()
         upBg()
     }
 
 
-    private fun initOnClick() {
+    private fun initOnClick() = with(ReadBookConfig.getConfig()) {
+        tv_text_bold.onClick {
+            textBold = !textBold
+            tv_text_bold.isSelected = textBold
+            postEvent(Bus.UP_CONFIG, true)
+        }
+        seek_text_size.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
+            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                textSize = progress + 5
+                postEvent(Bus.UP_CONFIG, true)
+            }
+
+            override fun onStartTrackingTouch(seekBar: SeekBar?) {}
+
+            override fun onStopTrackingTouch(seekBar: SeekBar?) {
+
+            }
+
+        })
+        iv_text_size_add.onClick {
+            textSize++
+            if (textSize > 50) textSize = 50
+            postEvent(Bus.UP_CONFIG, true)
+        }
+        iv_line_size_remove.onClick {
+            textSize--
+            if (textSize < 5) textSize = 5
+            postEvent(Bus.UP_CONFIG, true)
+        }
         rg_page_anim.onCheckedChange { _, checkedId ->
             for (i in 0 until rg_page_anim.childCount) {
                 if (checkedId == rg_page_anim[i].id) {
diff --git a/app/src/main/res/layout/dialog_read_book_style.xml b/app/src/main/res/layout/dialog_read_book_style.xml
index 948b5cc1f..2c84c4adf 100644
--- a/app/src/main/res/layout/dialog_read_book_style.xml
+++ b/app/src/main/res/layout/dialog_read_book_style.xml
@@ -97,7 +97,7 @@
             android:layout_height="25dp"
             android:layout_gravity="center_vertical"
             android:layout_weight="4"
-            android:max="50" />
+            android:max="45" />
 
         <androidx.appcompat.widget.AppCompatImageView
             android:id="@+id/iv_text_size_remove"
@@ -138,7 +138,7 @@
             android:layout_height="25dp"
             android:layout_gravity="center_vertical"
             android:layout_weight="4"
-            android:max="50" />
+            android:max="10" />
 
         <androidx.appcompat.widget.AppCompatImageView
             android:id="@+id/iv_text_letter_spacing_remove"