diff --git a/app/src/main/java/io/legado/app/service/DownloadService.kt b/app/src/main/java/io/legado/app/service/DownloadService.kt
index 3d2e8e6c2..013e6c630 100644
--- a/app/src/main/java/io/legado/app/service/DownloadService.kt
+++ b/app/src/main/java/io/legado/app/service/DownloadService.kt
@@ -6,15 +6,13 @@ import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
 import android.net.Uri
-import android.os.Build
 import android.os.Environment
 import androidx.core.app.NotificationCompat
 import io.legado.app.R
 import io.legado.app.base.BaseService
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.IntentAction
-import io.legado.app.utils.IntentType
-import io.legado.app.utils.msg
+import io.legado.app.utils.openFileUri
 import io.legado.app.utils.servicePendingIntent
 import io.legado.app.utils.toastOnUi
 import kotlinx.coroutines.Job
@@ -172,20 +170,7 @@ class DownloadService : BaseService() {
 
     private fun openDownload(downloadId: Long) {
         downloadManager.getUriForDownloadedFile(downloadId)?.let { uri ->
-            //调用系统安装apk
-            val intent = Intent()
-            intent.action = Intent.ACTION_VIEW
-            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-                //7.0版本以上
-                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-            }
-            intent.setDataAndType(uri, IntentType.from(uri))
-            try {
-                startActivity(intent)
-            } catch (e: Exception) {
-                toastOnUi(e.msg)
-            }
+            openFileUri(uri)
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/book/local/ImportBookAdapter.kt b/app/src/main/java/io/legado/app/ui/book/local/ImportBookAdapter.kt
index 86896c35b..75364291d 100644
--- a/app/src/main/java/io/legado/app/ui/book/local/ImportBookAdapter.kt
+++ b/app/src/main/java/io/legado/app/ui/book/local/ImportBookAdapter.kt
@@ -1,5 +1,6 @@
 package io.legado.app.ui.book.local
 
+import android.annotation.SuppressLint
 import android.content.Context
 import android.net.Uri
 import android.view.ViewGroup
@@ -79,6 +80,7 @@ class ImportBookAdapter(context: Context, val callBack: CallBack) :
         }
     }
 
+    @SuppressLint("NotifyDataSetChanged")
     fun upBookHas(bookUrls: List<String>) {
         bookFileNames.clear()
         bookUrls.forEach {
@@ -99,6 +101,7 @@ class ImportBookAdapter(context: Context, val callBack: CallBack) :
         callBack.upCountView()
     }
 
+    @SuppressLint("NotifyDataSetChanged")
     fun selectAll(selectAll: Boolean) {
         if (selectAll) {
             getItems().forEach {
diff --git a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
index 417f43b28..97cff9d38 100644
--- a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
@@ -15,6 +15,7 @@ import android.graphics.Bitmap
 import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.BatteryManager
+import android.os.Build
 import android.provider.Settings
 import android.widget.Toast
 import androidx.annotation.ColorRes
@@ -292,6 +293,22 @@ fun Context.openUrl(uri: Uri) {
     }
 }
 
+fun Context.openFileUri(uri: Uri) {
+    val intent = Intent()
+    intent.action = Intent.ACTION_VIEW
+    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+        //7.0版本以上
+        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+    }
+    intent.setDataAndType(uri, IntentType.from(uri))
+    try {
+        startActivity(intent)
+    } catch (e: Exception) {
+        toastOnUi(e.msg)
+    }
+}
+
 val Context.channel: String
     get() {
         try {