From 40413c4fb8770482e72b752cd885d8ccc118015f Mon Sep 17 00:00:00 2001
From: "khoa.nguyen" <nguyenduckhoa1996@gmail.com>
Date: Wed, 13 Mar 2024 14:25:17 +0700
Subject: [PATCH] handle the scenario where strategies are empty

---
 lib/src/otp_text_edit_controller.dart | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/lib/src/otp_text_edit_controller.dart b/lib/src/otp_text_edit_controller.dart
index 3020dc6..0135647 100644
--- a/lib/src/otp_text_edit_controller.dart
+++ b/lib/src/otp_text_edit_controller.dart
@@ -76,6 +76,8 @@ class OTPTextEditController extends TextEditingController {
       if (strategiesListen != null) ...strategiesListen,
     ];
 
+    if (list.isEmpty) return Future.value();
+
     return Stream.fromFutures(list).first.then(
       (value) {
         if (autoStop) {
@@ -112,10 +114,14 @@ class OTPTextEditController extends TextEditingController {
       (e) => e.listenForCode(),
     );
 
-    return Stream.fromFutures([
+    final list = [
       if (platform.isAndroid) smsListen,
       if (strategiesListen != null) ...strategiesListen,
-    ]).first.then(
+    ];
+
+    if (list.isEmpty) return Future.value();
+
+    return Stream.fromFutures(list).first.then(
       (value) {
         if (autoStop) {
           stopListen();
@@ -146,9 +152,14 @@ class OTPTextEditController extends TextEditingController {
     ExtractStringCallback codeExtractor,
   ) {
     final strategiesListen = strategies?.map((e) => e.listenForCode());
-    Stream.fromFutures([
+
+    final list = [
       if (strategiesListen != null) ...strategiesListen,
-    ]).first.then((value) {
+    ];
+
+    if (list.isEmpty) return;
+
+    Stream.fromFutures(list).first.then((value) {
       text = codeExtractor(value);
     });
   }