Move dropdownValue into State in sample (#33665)

3b75fbe3 · Shi-Hao Hong · GitHub · ef792fc3 · 3b75fbe3
Unverified Commit 3b75fbe3 authored Jun 03, 2019 by Shi-Hao Hong Committed by GitHub Jun 03, 2019
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dropdown.dart packages/flutter/lib/src/material/dropdown.dart +2 -3

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--- a/packages/flutter/lib/src/material/dropdown.dart
+++ b/packages/flutter/lib/src/material/dropdown.dart
@@ -535,11 +535,10 @@ class DropdownButtonHideUnderline extends InheritedWidget {
 /// This sample shows a `DropdownButton` whose value is one of
 /// "One", "Two", "Free", or "Four".
 ///
-/// ```dart preamble
+/// ```dart
 /// String dropdownValue = 'One';
-/// ```
 ///
-/// ```dart
+/// @override
 /// Widget build(BuildContext context) {
 ///   return Scaffold(
 ///     body: Center(