From cbc552424e8d094bfee18e26463acc81dd18d0da Mon Sep 17 00:00:00 2001
From: Luozf12345 <2515187986@qq.com>
Date: Wed, 24 Jul 2024 19:42:53 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B5=81=E6=B0=B4=E7=BA=BF=E6=8F=90=E4=BA=A4?=
 =?UTF-8?q?=E7=94=9F=E6=88=90=E4=BB=A3=E7=A0=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../assets/code/drawer._buildBaseSimple.txt   |  4 +--
 .../assets/code/drawer._buildBottomSimple.txt |  4 +--
 .../assets/code/drawer._buildIconSimple.txt   |  4 +--
 .../assets/code/drawer._buildTitleSimple.txt  |  4 +--
 tdesign-site/src/drawer/README.md             | 32 +++++++++----------
 5 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/tdesign-component/example/assets/code/drawer._buildBaseSimple.txt b/tdesign-component/example/assets/code/drawer._buildBaseSimple.txt
index 28a522817..dc782b14f 100644
--- a/tdesign-component/example/assets/code/drawer._buildBaseSimple.txt
+++ b/tdesign-component/example/assets/code/drawer._buildBaseSimple.txt
@@ -1,7 +1,7 @@
 
 Widget _buildBaseSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '基础抽屉',
     isBlock: true,
@@ -12,7 +12,7 @@ Widget _buildBaseSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
         onItemClick: (index, item) {
           print('drawer item被点击，index：$index，title：${item.title}');
diff --git a/tdesign-component/example/assets/code/drawer._buildBottomSimple.txt b/tdesign-component/example/assets/code/drawer._buildBottomSimple.txt
index 10792f330..1a95a1790 100644
--- a/tdesign-component/example/assets/code/drawer._buildBottomSimple.txt
+++ b/tdesign-component/example/assets/code/drawer._buildBottomSimple.txt
@@ -1,7 +1,7 @@
 
 Widget _buildBottomSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带底部插槽样式',
     isBlock: true,
@@ -12,7 +12,7 @@ Widget _buildBottomSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
diff --git a/tdesign-component/example/assets/code/drawer._buildIconSimple.txt b/tdesign-component/example/assets/code/drawer._buildIconSimple.txt
index da2e08368..7b444146c 100644
--- a/tdesign-component/example/assets/code/drawer._buildIconSimple.txt
+++ b/tdesign-component/example/assets/code/drawer._buildIconSimple.txt
@@ -1,7 +1,7 @@
 
 Widget _buildIconSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -12,7 +12,7 @@ Widget _buildIconSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}', icon: const Icon(TDIcons.app))).toList(),
       );
     },
diff --git a/tdesign-component/example/assets/code/drawer._buildTitleSimple.txt b/tdesign-component/example/assets/code/drawer._buildTitleSimple.txt
index d447a5eb4..10d327d99 100644
--- a/tdesign-component/example/assets/code/drawer._buildTitleSimple.txt
+++ b/tdesign-component/example/assets/code/drawer._buildTitleSimple.txt
@@ -1,7 +1,7 @@
 
 Widget _buildTitleSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -12,7 +12,7 @@ Widget _buildTitleSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
diff --git a/tdesign-site/src/drawer/README.md b/tdesign-site/src/drawer/README.md
index d7bc623ae..c414e2ade 100644
--- a/tdesign-site/src/drawer/README.md
+++ b/tdesign-site/src/drawer/README.md
@@ -28,7 +28,7 @@ import 'package:tdesign_flutter/tdesign_flutter.dart';
   <pre slot="Dart" lang="javascript">
 Widget _buildBaseSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '基础抽屉',
     isBlock: true,
@@ -39,7 +39,7 @@ Widget _buildBaseSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
         onItemClick: (index, item) {
           print('drawer item被点击，index：$index，title：${item.title}');
@@ -58,7 +58,7 @@ Widget _buildBaseSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildBaseSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '基础抽屉',
     isBlock: true,
@@ -69,7 +69,7 @@ Widget _buildBaseSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
         onItemClick: (index, item) {
           print('drawer item被点击，index：$index，title：${item.title}');
@@ -90,7 +90,7 @@ Widget _buildBaseSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildIconSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -101,7 +101,7 @@ Widget _buildIconSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}', icon: const Icon(TDIcons.app))).toList(),
       );
     },
@@ -117,7 +117,7 @@ Widget _buildIconSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildIconSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -128,7 +128,7 @@ Widget _buildIconSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         items: List.generate(30, (index) => TDDrawerItem(title: '菜单${_nums[index]}', icon: const Icon(TDIcons.app))).toList(),
       );
     },
@@ -147,7 +147,7 @@ Widget _buildIconSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildTitleSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -158,7 +158,7 @@ Widget _buildTitleSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
@@ -176,7 +176,7 @@ Widget _buildTitleSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildTitleSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带图标抽屉',
     isBlock: true,
@@ -187,7 +187,7 @@ Widget _buildTitleSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
@@ -207,7 +207,7 @@ Widget _buildTitleSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildBottomSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带底部插槽样式',
     isBlock: true,
@@ -218,7 +218,7 @@ Widget _buildBottomSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),
@@ -242,7 +242,7 @@ Widget _buildBottomSimple(BuildContext context) {
   <pre slot="Dart" lang="javascript">
 Widget _buildBottomSimple(BuildContext context) {
   /// 获取navBar尺寸
-  var renderBox = navBarkey.currentContext!.findRenderObject() as RenderBox;
+  var renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
   return TDButton(
     text: '带底部插槽样式',
     isBlock: true,
@@ -253,7 +253,7 @@ Widget _buildBottomSimple(BuildContext context) {
       TDDrawer(
         context,
         visible: true,
-        drawerTop: renderBox.size.height,
+        drawerTop: renderBox?.size.height,
         title: '标题',
         placement: TDDrawerPlacement.left,
         items: List.generate(10, (index) => TDDrawerItem(title: '菜单${_nums[index]}')).toList(),