From 6917e049835171c1f3c3ba866423f98ae24824ef Mon Sep 17 00:00:00 2001
From: yongheng_huang <yongheng_huang@kingdee.com>
Date: Wed, 31 Oct 2018 19:48:10 +0800
Subject: [PATCH 1/3] remove debug print

---
 lib/_src/dropdown_menu.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/_src/dropdown_menu.dart b/lib/_src/dropdown_menu.dart
index 46b81fe..a997af4 100644
--- a/lib/_src/dropdown_menu.dart
+++ b/lib/_src/dropdown_menu.dart
@@ -191,7 +191,7 @@ class _DropdownMenuState extends DropdownState<DropdownMenu>
   Widget build(BuildContext context) {
     List<Widget> list = [];
 
-    print("build ${new DateTime.now()}");
+    // print("build ${new DateTime.now()}");
 
     if (_show) {
       list.add(

From deea0df9c8fc40b161c4a1953c7f39bf3c09a55f Mon Sep 17 00:00:00 2001
From: yongheng_huang <yongheng_huang@kingdee.com>
Date: Fri, 9 Nov 2018 18:23:45 +0800
Subject: [PATCH 2/3] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=96=B0=E7=89=88?=
 =?UTF-8?q?=E6=9C=ACflutter=E4=B8=8B=E7=9A=84=E6=8A=A5=E9=94=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/_src/dropdown_menu.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/_src/dropdown_menu.dart b/lib/_src/dropdown_menu.dart
index a997af4..74e6b08 100644
--- a/lib/_src/dropdown_menu.dart
+++ b/lib/_src/dropdown_menu.dart
@@ -258,7 +258,7 @@ class _DropdownMenuState extends DropdownState<DropdownMenu>
 
   int _activeIndex;
 
-  Future<Null> onShow(int index) {
+  Future onShow(int index) {
     //哪一个是要展示的
 
     assert(index >= 0 && index < _dropdownAnimations.length);

From d8c2a81296be93a5e8ed478bb17152bce78628d6 Mon Sep 17 00:00:00 2001
From: yongheng_huang <yongheng_huang@kingdee.com>
Date: Fri, 9 Nov 2018 18:46:30 +0800
Subject: [PATCH 3/3] fix issue #7

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

diff --git a/lib/_src/dropdown_menu.dart b/lib/_src/dropdown_menu.dart
index 74e6b08..1cd077a 100644
--- a/lib/_src/dropdown_menu.dart
+++ b/lib/_src/dropdown_menu.dart
@@ -258,7 +258,7 @@ class _DropdownMenuState extends DropdownState<DropdownMenu>
 
   int _activeIndex;
 
-  Future onShow(int index) {
+  TickerFuture onShow(int index) {
     //哪一个是要展示的
 
     assert(index >= 0 && index < _dropdownAnimations.length);
@@ -282,7 +282,7 @@ class _DropdownMenuState extends DropdownState<DropdownMenu>
               _show = true;
             });
 
-            return new Future.value(null);
+            return new TickerFuture.complete();
           }
 
           break;