fix renaming

- show error message when a user tries to rename a file on the root of the SD Card in ViewPagerActivity and MediaAdapter
- in PickDirectoryDialog, use the Activity.isAStorageRootFolder method instead of String.isBasePath

app/src/main/kotlin/com/simplemobiletools/gallery/pro/activities/ViewPagerActivity.kt

@@ -1166,6 +1166,13 @@ class ViewPagerActivity : SimpleActivity(), ViewPager.OnPageChangeListener, View
 
     private fun renameFile() {
         val oldPath = getCurrentPath()
+
+        val isSDOrOtgRootFolder = isAStorageRootFolder(oldPath.getParentPath()) && !oldPath.startsWith(internalStoragePath)
+        if (isRPlus() && isSDOrOtgRootFolder) {
+            toast(R.string.rename_in_sd_card_system_restriction)
+            return
+        }
+
         RenameItemDialog(this, oldPath) {
             getCurrentMedia()[mPos].apply {
                 path = it

app/src/main/kotlin/com/simplemobiletools/gallery/pro/adapters/MediaAdapter.kt

@@ -234,11 +234,19 @@ class MediaAdapter(
     }
 
     private fun renameFile() {
+        val firstPath = getFirstSelectedItemPath() ?: return
+
+        val isSDOrOtgRootFolder = activity.isAStorageRootFolder(firstPath.getParentPath()) && !firstPath.startsWith(activity.internalStoragePath)
+        if (isRPlus() && isSDOrOtgRootFolder) {
+            activity.toast(R.string.rename_in_sd_card_system_restriction)
+            finishActMode()
+            return
+        }
+
         if (selectedKeys.size == 1) {
-            val oldPath = getFirstSelectedItemPath() ?: return
-            RenameItemDialog(activity, oldPath) {
+            RenameItemDialog(activity, firstPath) {
                 ensureBackgroundThread {
-                    activity.updateDBMediaPath(oldPath, it)
+                    activity.updateDBMediaPath(firstPath, it)
 
                     activity.runOnUiThread {
                         enableInstantLoad()

app/src/main/kotlin/com/simplemobiletools/gallery/pro/dialogs/PickDirectoryDialog.kt

@@ -111,7 +111,7 @@ class PickDirectoryDialog(
                 if (path.trimEnd('/') == sourcePath) {
                     activity.toast(R.string.source_and_destination_same)
                     return@DirectoryAdapter
-                } else if (isRPlus() && path.isBasePath(activity)) {
+                } else if (isRPlus() && activity.isAStorageRootFolder(path)) {
                     activity.toast(R.string.copy_to_restricted_folder_message)
                     return@DirectoryAdapter
                 } else {