From 65d1d958744641f26bc65235fd2a14078c4e4221 Mon Sep 17 00:00:00 2001
From: HSCOO <371706801@qq.com>
Date: Fri, 17 Feb 2023 18:49:28 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=8F=AA=E8=AE=BE=E7=BD=AE?=
 =?UTF-8?q?=E5=B9=B4=E6=9C=88=E6=97=B6=EF=BC=8C=E9=80=89=E4=B8=AD=E9=A2=9C?=
 =?UTF-8?q?=E8=89=B2=E9=94=99=E4=B9=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/picker.dart | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/picker.dart b/lib/picker.dart
index 5620b4f..ec18f39 100644
--- a/lib/picker.dart
+++ b/lib/picker.dart
@@ -1284,8 +1284,10 @@ class DateTimePickerAdapter extends PickerAdapter<DateTime> {
       _columnType = columnType[type];
     var month = _columnType.indexWhere((element) => element == 1);
     var day = _columnType.indexWhere((element) => element == 2);
-    _needUpdatePrev =
-        day < month || day < _columnType.indexWhere((element) => element == 0);
+    if (month != -1 && day != -1) {
+      _needUpdatePrev = day < month ||
+          day < _columnType.indexWhere((element) => element == 0);
+    }
     if (!_needUpdatePrev) {
       // check am/pm before hour-ap
       var ap = _columnType.indexWhere((element) => element == 6);