From 9e3633f1e4f6963621577de4fb4c8d01048b5862 Mon Sep 17 00:00:00 2001
From: fufesou <fufesou@users.noreply.github.com>
Date: Sat, 20 Jan 2024 00:03:07 -0800
Subject: [PATCH] Fix. Avoid invalid verification code attempts. (#6925)

Signed-off-by: fufesou <shuanglongchen@yeah.net>
---
 flutter/lib/common/widgets/dialog.dart | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/flutter/lib/common/widgets/dialog.dart b/flutter/lib/common/widgets/dialog.dart
index 5fe3bdefb..58db1047c 100644
--- a/flutter/lib/common/widgets/dialog.dart
+++ b/flutter/lib/common/widgets/dialog.dart
@@ -597,6 +597,7 @@ class _DialogVerificationCodeField extends State<DialogVerificationCodeField> {
   Timer? _timer;
   Timer? _timerReRequestFocus;
   SimpleWrapper<String?> errorText = SimpleWrapper(null);
+  String _preText = '';
 
   @override
   void initState() {
@@ -607,7 +608,10 @@ class _DialogVerificationCodeField extends State<DialogVerificationCodeField> {
 
       if (widget.onChanged != null) {
         widget.controller.addListener(() {
+          final text = widget.controller.text.trim();
+          if (text == _preText) return;
           widget.onChanged!(setState, errorText);
+          _preText = text;
         });
       }
     }