update carton

lib/pages/carton/input_text_border.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+typedef OnAdd(String value);
+
+class InputTextBorder extends StatelessWidget {
+  final OnAdd onAdd;
+
+  const InputTextBorder({Key key, this.onAdd}) : super(key: key);
+  @override
+  Widget build(BuildContext context) {
+    return TextFormField(
+      textAlign: TextAlign.center,
+      onChanged: (v) {
+        if (onAdd != null) onAdd(v);
+      },
+      keyboardType: TextInputType.number,
+      decoration: new InputDecoration(
+        focusedBorder: OutlineInputBorder(
+          borderSide: BorderSide(color: Colors.grey),
+        ),
+        enabledBorder: OutlineInputBorder(
+          borderSide: BorderSide(color: Colors.grey),
+        ),
+      ),
+    );
+  }
+}