diff --git a/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverDialog.kt b/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverDialog.kt
index f566cbbbb..0eb939fe4 100644
--- a/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverDialog.kt
@@ -13,7 +13,7 @@ import io.legado.app.utils.getViewModel
 import kotlinx.android.synthetic.main.dialog_change_source.*
 
 
-class ChangeCoverDialog : DialogFragment() {
+class ChangeCoverDialog : DialogFragment(), ChangeCoverViewModel.CallBack {
 
     companion object {
         const val tag = "changeCoverDialog"
@@ -32,7 +32,7 @@ class ChangeCoverDialog : DialogFragment() {
 
     private var callBack: CallBack? = null
     private lateinit var viewModel: ChangeCoverViewModel
-    private lateinit var adapter: CoverAdapter
+    override lateinit var adapter: CoverAdapter
 
     override fun onStart() {
         super.onStart()
diff --git a/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverViewModel.kt b/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverViewModel.kt
index 5f12c56b2..b38ced035 100644
--- a/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/changecover/ChangeCoverViewModel.kt
@@ -1,6 +1,7 @@
 package io.legado.app.ui.changecover
 
 import android.app.Application
+import io.legado.app.App
 import io.legado.app.base.BaseViewModel
 
 class ChangeCoverViewModel(application: Application) : BaseViewModel(application) {
@@ -8,5 +9,15 @@ class ChangeCoverViewModel(application: Application) : BaseViewModel(application
     var name: String = ""
     var author: String = ""
 
+    fun initData() {
+        execute {
+            App.db.searchBookDao().getByNameAuthorEnable(name, author).let {
 
+            }
+        }
+    }
+
+    interface CallBack {
+        var adapter: CoverAdapter
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/changecover/CoverAdapter.kt b/app/src/main/java/io/legado/app/ui/changecover/CoverAdapter.kt
index 408acbeb4..0290d7749 100644
--- a/app/src/main/java/io/legado/app/ui/changecover/CoverAdapter.kt
+++ b/app/src/main/java/io/legado/app/ui/changecover/CoverAdapter.kt
@@ -22,4 +22,7 @@ class CoverAdapter(context: Context) :
         }
     }
 
+    interface CallBack {
+        fun changeTo()
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceDialog.kt b/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceDialog.kt
index edf3057a3..1097a936c 100644
--- a/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceDialog.kt
+++ b/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceDialog.kt
@@ -40,7 +40,7 @@ class ChangeSourceDialog : DialogFragment(),
 
     private var callBack: CallBack? = null
     private lateinit var viewModel: ChangeSourceViewModel
-    private lateinit var changeSourceAdapter: ChangeSourceAdapter
+    override lateinit var changeSourceAdapter: ChangeSourceAdapter
 
     override fun onStart() {
         super.onStart()
@@ -139,10 +139,6 @@ class ChangeSourceDialog : DialogFragment(),
     override val bookUrl: String?
         get() = callBack?.oldBook?.bookUrl
 
-    override fun adapter(): ChangeSourceAdapter {
-        return changeSourceAdapter
-    }
-
     interface CallBack {
         val oldBook: Book?
         fun changeTo(book: Book)
diff --git a/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceViewModel.kt b/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceViewModel.kt
index 3b16a4359..cccdd0e71 100644
--- a/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/changesource/ChangeSourceViewModel.kt
@@ -40,7 +40,7 @@ class ChangeSourceViewModel(application: Application) : BaseViewModel(applicatio
 
     private fun upAdapter() {
         execute {
-            callBack?.adapter()?.let {
+            callBack?.changeSourceAdapter?.let {
                 val books = searchBooks.toList()
                 books.sorted()
                 val diffResult = DiffUtil.calculateDiff(DiffCallBack(it.getItems(), books))
@@ -131,7 +131,7 @@ class ChangeSourceViewModel(application: Application) : BaseViewModel(applicatio
     }
 
     interface CallBack {
-        fun adapter(): ChangeSourceAdapter
+        var changeSourceAdapter: ChangeSourceAdapter
     }
 
     override fun onCleared() {