完成空安全转换

2021-08-29 11:29:45 +08:00
parent 8a5a57f5ac
commit 5806f35f54
319 changed files with 2638 additions and 2019 deletions
--- a/lib/views/widgets/StatefulWidget/DropdownButton/node1_base.dart
+++ b/lib/views/widgets/StatefulWidget/DropdownButton/node1_base.dart
@@ -45,7 +45,7 @@ class _CustomDropDownButtonState extends State<CustomDropDownButton> {
              color: _color,
            ),
            items: _buildItems(),
-            onChanged: (v) => setState(() => _color = v)),
+            onChanged: (v) => setState(() => _color = v??Colors.blue)),
      ],
    );
  }