SingleChildScrollView 增加 controller 参数

lib/widget/my_scroll_view.dart

@@ -18,6 +18,7 @@ class MyScrollView extends StatelessWidget {
     this.keyboardConfig,
     this.tapOutsideToDismiss = false,
     this.overScroll = 16.0,
+    this.controller,
   }) : super(key: key);
 
   final List<Widget> children;
@@ -26,6 +27,7 @@ class MyScrollView extends StatelessWidget {
   final CrossAxisAlignment crossAxisAlignment;
   final Widget? bottomButton;
   final KeyboardActionsConfig? keyboardConfig;
+  final ScrollController? controller;
 
   /// 键盘外部按下将其关闭
   final bool tapOutsideToDismiss;
@@ -57,6 +59,7 @@ class MyScrollView extends StatelessWidget {
       contents = SingleChildScrollView(
         padding: padding,
         physics: physics,
+        controller: controller,
         child: contents,
       );
       if (keyboardConfig != null) {