...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfActivity.kt

@@ -171,10 +171,10 @@ class PdfActivity : BaseActivity<ActivityPdfBinding>(), PdfView {
                     if (it) {
                         AdmobHelper.lastCloseDocumentShowAd = System.currentTimeMillis()
                     }
-//                    finishToMain()
+                    finishToMain()
                 }
             } else {
-//                finishToMain()
+                finishToMain()
             }
         }
         binding.flFanhui.setOnClickListener {

app/src/main/java/com/base/pdfviewerscannerwhite/ui/main/MainActivity.kt

@@ -377,11 +377,12 @@ class MainActivity : BaseActivity<ActivityMain2Binding>(), MainView {
                 mainPresenter.copyFile(file, newFile)
                 this.updateMediaStore()
 //                refreshPageList()
+                if (!checkStorePermission()) {
+                    showPermissionThenBanner()
+                }
             }
         }
-        if (!checkStorePermission()) {
-            showPermissionThenBanner()
-        }
+
     }
 
     override fun refreshPageList() {

app/src/main/java/com/base/pdfviewerscannerwhite/utils/SpStringUtils.kt

 package com.base.pdfviewerscannerwhite.utils
 
 object SpStringUtils {
-    private val TAG="SpStringUtils"
+    private val TAG = "SpStringUtils"
 
     const val BOOKMARK_KEY = "bookmark_key"
+
+    //key=last_view_key value=/data/user/0/com.ttesst.gododo.redause/files/demo/DEMO.pdf_/_1728703007625
     const val LAST_VIEW_KEY = "last_view_key"
     fun getSpStringList(key: String): List<String> {
         val sp = AppPreferences.getInstance().getString(key, "")
@@ -15,7 +17,7 @@ object SpStringUtils {
     }
 
     fun addSpString(key: String, value: String) {
-        LogEx.logDebug(TAG,"key=$key value=$value")
+        LogEx.logDebug(TAG, "key=$key value=$value")
         val list = getSpStringList(key).toMutableList()
         list.add(value)
         val string = list.joinToString(separator = "|||")