From 830cc1a7d4974575991a249c7bf5e766be4a8114 Mon Sep 17 00:00:00 2001
From: Vitaliy <chumva.forever@gmail.com>
Date: Wed, 27 Jan 2021 17:29:14 +0200
Subject: [PATCH] Fix #10621

---
 OsmAnd/src/net/osmand/plus/dialogs/RenameFileBottomSheet.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/OsmAnd/src/net/osmand/plus/dialogs/RenameFileBottomSheet.java b/OsmAnd/src/net/osmand/plus/dialogs/RenameFileBottomSheet.java
index af26533607..f2bfe0e6e7 100644
--- a/OsmAnd/src/net/osmand/plus/dialogs/RenameFileBottomSheet.java
+++ b/OsmAnd/src/net/osmand/plus/dialogs/RenameFileBottomSheet.java
@@ -99,7 +99,9 @@ public class RenameFileBottomSheet extends MenuBottomSheetDialogFragment {
 	}
 
 	private void updateFileName(String name) {
-		if (!Algorithms.isEmpty(name) && ILLEGAL_FILE_NAME_CHARACTERS.matcher(name).find()) {
+		if (Algorithms.isBlank(name)) {
+			nameTextBox.setError(getString(R.string.empty_filename));
+		} else if (ILLEGAL_FILE_NAME_CHARACTERS.matcher(name).find()) {
 			nameTextBox.setError(getString(R.string.file_name_containes_illegal_char));
 		} else {
 			selectedFileName = name;