From ff895bc1da28297ea7282aed8ead3acbf65a152f Mon Sep 17 00:00:00 2001
From: xuyingjun <xuyingjun@yy.com>
Date: Tue, 8 Oct 2019 19:26:38 +0800
Subject: [PATCH] modify constraints property[v1.0.5]

---
 .idea/libraries/Dart_SDK.xml                  |  40 +-
 .idea/workspace.xml                           | 405 +++++++++---------
 CHANGELOG.md                                  |   6 +-
 README.md                                     |   9 +-
 README_CN.md                                  |   9 +-
 .../ios/Flutter/flutter_export_environment.sh |   6 +-
 example/lib/main.dart                         |   9 +-
 example/pubspec.lock                          |   2 +-
 image/png/9.png                               | Bin 0 -> 3083 bytes
 lib/components/bean/dialog_gravity.dart       |  13 -
 lib/components/bean/dialog_item.dart          |  39 --
 lib/components/example/alert_dialog.dart      |   1 -
 .../example/bottom_sheet_dialog.dart          |  37 ++
 lib/components/example/listview_dialog.dart   |   2 -
 lib/flutter_custom_dialog.dart                |  60 ++-
 lib/flutter_custom_dialog_widget.dart         |   3 +-
 pubspec.lock                                  |  14 +-
 pubspec.yaml                                  |   2 +-
 18 files changed, 348 insertions(+), 309 deletions(-)
 create mode 100644 image/png/9.png
 delete mode 100644 lib/components/bean/dialog_gravity.dart
 delete mode 100644 lib/components/bean/dialog_item.dart
 create mode 100644 lib/components/example/bottom_sheet_dialog.dart

diff --git a/.idea/libraries/Dart_SDK.xml b/.idea/libraries/Dart_SDK.xml
index fdf50ef..f763830 100644
--- a/.idea/libraries/Dart_SDK.xml
+++ b/.idea/libraries/Dart_SDK.xml
@@ -1,26 +1,26 @@
 <component name="libraryTable">
   <library name="Dart SDK">
     <CLASSES>
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/async" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/cli" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/collection" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/convert" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/core" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/developer" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/ffi" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/html" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/indexed_db" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/io" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/isolate" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/js" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/js_util" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/math" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/mirrors" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/svg" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/typed_data" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/web_audio" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/web_gl" />
-      <root url="file://D:/Program Files/flutter/bin/cache/dart-sdk/lib/web_sql" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/async" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/cli" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/collection" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/convert" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/core" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/developer" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/ffi" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/html" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/indexed_db" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/io" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/isolate" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/js" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/js_util" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/math" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/mirrors" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/svg" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/typed_data" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/web_audio" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/web_gl" />
+      <root url="file://C:/FlutterSDK/flutter/bin/cache/dart-sdk/lib/web_sql" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index e7e82d2..ee3cbdd 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,13 +1,25 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="64ffa824-a38c-465f-9347-f69db912f241" name="Default Changelist" comment="">
+    <list default="true" id="64ffa824-a38c-465f-9347-f69db912f241" name="Default Changelist" comment="modify constraints property[v1.0.3]">
+      <change afterPath="$PROJECT_DIR$/image/png/9.png" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/lib/components/example/bottom_sheet_dialog.dart" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/libraries/Dart_SDK.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/libraries/Dart_SDK.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/CHANGELOG.md" beforeDir="false" afterPath="$PROJECT_DIR$/CHANGELOG.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/README_CN.md" beforeDir="false" afterPath="$PROJECT_DIR$/README_CN.md" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" beforeDir="false" afterPath="$PROJECT_DIR$/example/ios/Flutter/flutter_export_environment.sh" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/example/lib/main.dart" beforeDir="false" afterPath="$PROJECT_DIR$/example/lib/main.dart" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/example/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/example/pubspec.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/components/bean/dialog_gravity.dart" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/components/bean/dialog_item.dart" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/components/example/alert_dialog.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/components/example/alert_dialog.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/components/example/listview_dialog.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/components/example/listview_dialog.dart" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/lib/flutter_custom_dialog.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/flutter_custom_dialog.dart" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart" beforeDir="false" afterPath="$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/pubspec.lock" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.lock" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/pubspec.yaml" beforeDir="false" afterPath="$PROJECT_DIR$/pubspec.yaml" afterDir="false" />
     </list>
     <ignored path="$PROJECT_DIR$/.dart_tool/" />
     <ignored path="$PROJECT_DIR$/.idea/" />
@@ -22,13 +34,53 @@
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
+  <component name="FUSProjectUsageTrigger">
+    <session id="2142450520">
+      <usages-collector id="statistics.lifecycle.project">
+        <counts>
+          <entry key="project.open.time.5" value="1" />
+          <entry key="project.opened" value="1" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.extensions.open">
+        <counts>
+          <entry key="dart" value="13" />
+          <entry key="lock" value="2" />
+          <entry key="md" value="3" />
+          <entry key="yaml" value="2" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.types.open">
+        <counts>
+          <entry key="Dart" value="13" />
+          <entry key="PLAIN_TEXT" value="5" />
+          <entry key="YAML" value="2" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.extensions.edit">
+        <counts>
+          <entry key="dart" value="445" />
+          <entry key="md" value="39" />
+          <entry key="txt" value="7" />
+          <entry key="yaml" value="1" />
+        </counts>
+      </usages-collector>
+      <usages-collector id="statistics.file.types.edit">
+        <counts>
+          <entry key="Dart" value="445" />
+          <entry key="PLAIN_TEXT" value="46" />
+          <entry key="YAML" value="1" />
+        </counts>
+      </usages-collector>
+    </session>
+  </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file pinned="false" current-in-tab="true">
+      <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="307">
-              <caret line="43" column="27" lean-forward="true" selection-start-line="43" selection-start-column="27" selection-end-line="43" selection-end-column="27" />
+            <state relative-caret-position="231">
+              <caret line="202" column="28" lean-forward="true" selection-start-line="202" selection-start-column="28" selection-end-line="202" selection-end-column="28" />
               <folding>
                 <element signature="e#0#39#0" expanded="true" />
               </folding>
@@ -37,93 +89,88 @@
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/media_query.dart">
+        <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/rendering/box.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="232">
-              <caret line="716" column="32" selection-start-line="716" selection-start-column="32" selection-end-line="716" selection-end-column="32" />
+            <state relative-caret-position="290">
+              <caret line="87" column="8" selection-start-line="87" selection-start-column="8" selection-end-line="87" selection-end-column="8" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_item.dart">
+        <entry file="file://C:/FlutterSDK/flutter/bin/cache/pkg/sky_engine/lib/core/double.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="300">
-              <caret line="12" column="5" selection-start-line="12" selection-start-column="5" selection-end-line="12" selection-end-column="5" />
-              <folding>
-                <element signature="e#0#39#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="290">
+              <caret line="26" column="22" selection-start-line="26" selection-start-column="22" selection-end-line="26" selection-end-column="22" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_gravity.dart">
+        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="325">
-              <caret line="13" selection-start-line="13" selection-end-line="13" />
+            <state relative-caret-position="315">
+              <caret line="15" column="38" selection-start-line="15" selection-start-column="38" selection-end-line="15" selection-end-column="38" />
+              <folding>
+                <element signature="e#32#71#0" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/components/example/alert_dialog.dart">
+        <entry file="file://$PROJECT_DIR$/README.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="125">
-              <caret line="5" column="33" selection-start-line="5" selection-start-column="26" selection-end-line="5" selection-end-column="33" />
-              <folding>
-                <element signature="e#0#39#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="462">
+              <caret line="85" column="4" selection-start-line="85" selection-start-column="4" selection-end-line="85" selection-end-column="4" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/components/example/listview_dialog.dart">
+        <entry file="file://$PROJECT_DIR$/README_CN.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state>
-              <folding>
-                <element signature="e#0#39#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="577">
+              <caret line="86" column="18" lean-forward="true" selection-start-line="86" selection-start-column="18" selection-end-line="86" selection-end-column="18" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart">
+        <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="50">
-              <caret line="2" column="30" selection-start-line="2" selection-start-column="30" selection-end-line="2" selection-end-column="30" />
+            <state relative-caret-position="441">
+              <caret line="21" column="7" lean-forward="true" selection-start-line="21" selection-start-column="7" selection-end-line="21" selection-end-column="7" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+        <entry file="file://$PROJECT_DIR$/pubspec.lock">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="832">
-              <caret line="55" column="23" selection-start-line="55" selection-start-column="23" selection-end-line="55" selection-end-column="23" />
-              <folding>
-                <element signature="e#32#71#0" expanded="true" />
-              </folding>
+            <state relative-caret-position="316">
+              <caret line="91" column="23" selection-start-line="91" selection-start-column="23" selection-end-line="91" selection-end-column="23" />
             </state>
           </provider>
         </entry>
       </file>
-      <file pinned="false" current-in-tab="false">
-        <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/framework.dart">
+      <file pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/pubspec.yaml">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="772">
-              <caret line="1835" column="23" selection-start-line="1835" selection-start-column="15" selection-end-line="1835" selection-end-column="23" />
+            <state relative-caret-position="63">
+              <caret line="3" column="24" selection-start-line="3" selection-start-column="24" selection-end-line="3" selection-end-column="24" />
             </state>
           </provider>
         </entry>
       </file>
       <file pinned="false" current-in-tab="false">
-        <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/scaffold.dart">
+        <entry file="file://$PROJECT_DIR$/lib/components/example/bottom_sheet_dialog.dart">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="82">
-              <caret line="1212" column="68" selection-start-line="1212" selection-start-column="60" selection-end-line="1212" selection-end-column="68" />
+            <state relative-caret-position="420">
+              <caret line="20" column="23" lean-forward="true" selection-start-line="20" selection-start-column="23" selection-end-line="20" selection-end-column="23" />
+              <folding>
+                <element signature="e#0#39#0" expanded="true" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -139,10 +186,6 @@
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
-      <find>fontWeight</find>
-      <find>letterSpacing</find>
-      <find>borderRadius</find>
-      <find>alertdialog</find>
       <find>height</find>
       <find>YYListTileDialog1</find>
       <find>constraints</find>
@@ -161,7 +204,6 @@
       <find>_isShowing</find>
       <find>build</find>
       <find>Builder</find>
-      <find>Builder</find>
       <find>CustomDialog</find>
       <find>show</find>
       <find>show(</find>
@@ -169,6 +211,11 @@
       <find>oi</find>
       <find>init</find>
       <find>show context</find>
+      <find>1.5.4</find>
+      <find>1.5</find>
+      <find>BoxConstraints</find>
+      <find>de</find>
+      <find>decoration</find>
     </findStrings>
   </component>
   <component name="Git.Settings">
@@ -185,22 +232,24 @@
         <option value="$PROJECT_DIR$/lib/components/bean/process_dialog.dart" />
         <option value="$PROJECT_DIR$/lib/components/listview_dialog.dart" />
         <option value="$PROJECT_DIR$/lib/components/alert_dialog.dart" />
-        <option value="$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart" />
-        <option value="$PROJECT_DIR$/lib/components/bean/dialog_item.dart" />
         <option value="$PROJECT_DIR$/lib/components/bean/dialog_gravity.dart" />
+        <option value="$PROJECT_DIR$/lib/components/bean/dialog_item.dart" />
+        <option value="$PROJECT_DIR$/example/lib/main.dart" />
+        <option value="$PROJECT_DIR$/lib/components/example/listview_dialog.dart" />
         <option value="$PROJECT_DIR$/lib/components/example/alert_dialog.dart" />
+        <option value="$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart" />
+        <option value="$PROJECT_DIR$/lib/flutter_custom_dialog.dart" />
+        <option value="$PROJECT_DIR$/lib/components/example/bottom_sheet_dialog.dart" />
+        <option value="$PROJECT_DIR$/README.md" />
         <option value="$PROJECT_DIR$/README_CN.md" />
         <option value="$PROJECT_DIR$/CHANGELOG.md" />
         <option value="$PROJECT_DIR$/pubspec.yaml" />
-        <option value="$PROJECT_DIR$/README.md" />
-        <option value="$PROJECT_DIR$/lib/flutter_custom_dialog.dart" />
-        <option value="$PROJECT_DIR$/example/lib/main.dart" />
       </list>
     </option>
   </component>
-  <component name="ProjectFrameBounds">
-    <option name="x" value="-7" />
-    <option name="y" value="-9" />
+  <component name="ProjectFrameBounds" extendedState="6">
+    <option name="x" value="498" />
+    <option name="y" value="205" />
     <option name="width" value="1936" />
     <option name="height" value="1056" />
   </component>
@@ -210,77 +259,57 @@
       <foldersAlwaysOnTop value="true" />
     </navigator>
     <panes>
+      <pane id="Scope" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
             <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
+              <item name="flutter-custom-dialog" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter-custom-dialog" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="flutter-custom-dialog" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter-custom-dialog" type="462c0819:PsiDirectoryNode" />
+              <item name="image" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
+              <item name="flutter-custom-dialog" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter-custom-dialog" type="462c0819:PsiDirectoryNode" />
+              <item name="image" type="462c0819:PsiDirectoryNode" />
+              <item name="png" type="462c0819:PsiDirectoryNode" />
             </path>
             <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
+              <item name="flutter-custom-dialog" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter-custom-dialog" type="462c0819:PsiDirectoryNode" />
               <item name="lib" type="462c0819:PsiDirectoryNode" />
             </path>
-            <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-              <item name="components" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-              <item name="components" type="462c0819:PsiDirectoryNode" />
-              <item name="bean" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="flutter_custom_dialog" type="b2602c69:ProjectViewProjectNode" />
-              <item name="flutter_custom_dialog" type="462c0819:PsiDirectoryNode" />
-              <item name="lib" type="462c0819:PsiDirectoryNode" />
-              <item name="components" type="462c0819:PsiDirectoryNode" />
-              <item name="example" type="462c0819:PsiDirectoryNode" />
-            </path>
           </expand>
           <select />
         </subPane>
       </pane>
-      <pane id="Scope" />
       <pane id="PackagesPane" />
-      <pane id="AndroidView" />
     </panes>
   </component>
   <component name="PropertiesComponent">
     <property name="SearchEverywhereHistoryKey" value="canvas&#9;null&#9;null" />
     <property name="dart.analysis.tool.window.force.activate" value="false" />
     <property name="io.flutter.reload.alreadyRun" value="true" />
-    <property name="last_opened_file_path" value="C:/YYLive2-WorkSpace/yy_workspace/pluginteampk-android" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$" />
     <property name="settings.editor.selected.configurable" value="dart.settings" />
     <property name="show.migrate.to.gradle.popup" value="false" />
   </component>
   <component name="RecentsManager">
-    <key name="CopyFile.RECENT_KEYS">
+    <key name="MoveFile.RECENT_KEYS">
       <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\image\png" />
-      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\image\gif" />
-      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components\bean" />
       <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components" />
+      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components\bean" />
     </key>
-    <key name="MoveFile.RECENT_KEYS">
+    <key name="CopyFile.RECENT_KEYS">
       <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\image\png" />
-      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components" />
+      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components\example" />
+      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\image\gif" />
       <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components\bean" />
+      <recent name="C:\YYLive4-OpenSource\flutter-custom-dialog\lib\components" />
     </key>
   </component>
   <component name="RunDashboard">
@@ -513,10 +542,10 @@
     <servers />
   </component>
   <component name="ToolWindowManager">
-    <frame x="1912" y="-8" width="1936" height="1066" extended-state="6" />
+    <frame x="-8" y="-8" width="1936" height="1056" extended-state="6" />
     <editor active="true" />
     <layout>
-      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.34830168" weight="0.2595949" />
+      <window_info active="true" content_ui="combo" id="Project" order="0" sideWeight="0.34830168" visible="true" weight="0.2595949" />
       <window_info id="Capture Tool" order="1" />
       <window_info id="Captures" order="2" side_tool="true" />
       <window_info id="Resources Explorer" order="3" />
@@ -529,8 +558,8 @@
       <window_info anchor="bottom" id="TODO" order="1" />
       <window_info anchor="bottom" id="Android Profiler" order="2" show_stripe_button="false" />
       <window_info anchor="bottom" id="Debug" order="3" />
-      <window_info anchor="bottom" id="Messages" order="4" weight="0.32725322" />
-      <window_info active="true" anchor="bottom" id="Run" order="5" visible="true" weight="0.38412017" />
+      <window_info anchor="bottom" id="Messages" order="4" weight="0.32664436" />
+      <window_info anchor="bottom" id="Run" order="5" weight="0.38350055" />
       <window_info anchor="bottom" id="Event Log" order="6" side_tool="true" />
       <window_info anchor="bottom" id="Flutter Performance" order="7" side_tool="true" />
       <window_info anchor="bottom" id="Version Control" order="8" />
@@ -548,6 +577,9 @@
   <component name="UnknownFeatures">
     <option featureType="com.intellij.fileTypeFactory" implementationName="*.md" />
   </component>
+  <component name="VcsContentAnnotationSettings">
+    <option name="myLimit" value="2678400000" />
+  </component>
   <component name="VcsManagerConfiguration">
     <MESSAGE value="测试提交" />
     <MESSAGE value="demo" />
@@ -609,12 +641,6 @@
     </breakpoint-manager>
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/material/ink_well.dart" />
-    <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/widgets/scroll_view.dart" />
-    <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/widgets/media_query.dart" />
-    <entry file="file://$PROJECT_DIR$/example/test/widget_test.dart">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
     <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/material/flat_button.dart" />
     <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/widgets/framework.dart" />
     <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/material/material_button.dart" />
@@ -652,184 +678,149 @@
     <entry file="file://$PROJECT_DIR$/image/png/6.png">
       <provider selected="true" editor-type-id="images" />
     </entry>
-    <entry file="file://$PROJECT_DIR$/pubspec.lock">
-      <provider selected="true" editor-type-id="text-editor" />
-    </entry>
-    <entry file="file://$PROJECT_DIR$/README_CN.md">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="4956">
-          <caret line="236" lean-forward="true" selection-start-line="236" selection-end-line="236" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="273">
-          <caret line="13" column="3" selection-start-line="13" selection-start-column="3" selection-end-line="15" selection-end-column="37" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/material.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/material.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/annotated_region.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/app.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/widgets.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/framework.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/dialog.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/media_query.dart" />
+    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/scaffold.dart" />
+    <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_gravity.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="567">
-          <caret line="243" column="28" selection-start-line="243" selection-start-column="28" selection-end-line="243" selection-end-column="28" />
+        <state relative-caret-position="21">
+          <caret line="1" selection-start-line="1" selection-end-line="1" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/pubspec.yaml">
+    <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_item.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="350">
-          <caret line="23" column="49" selection-start-line="23" selection-start-column="49" selection-end-line="23" selection-end-column="49" />
+        <state relative-caret-position="63">
+          <caret line="3" selection-start-line="3" selection-end-line="3" />
+          <folding>
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/components/example/progress_dialog.dart">
+    <entry file="file://$PROJECT_DIR$/lib/components/example/alert_dialog.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-24">
-          <caret line="12" column="1" lean-forward="true" selection-start-line="12" selection-start-column="1" selection-end-line="12" selection-end-column="1" />
+        <state relative-caret-position="273">
+          <caret line="13" column="37" selection-start-line="13" selection-start-column="37" selection-end-line="13" selection-end-column="37" />
           <folding>
             <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/material.dart">
+    <entry file="file://$PROJECT_DIR$/lib/components/example/listview_dialog.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-2025">
-          <folding>
-            <element signature="e#0#28006#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="21">
+          <caret line="1" column="33" selection-start-line="1" selection-start-column="33" selection-end-line="1" selection-end-column="33" />
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/material.dart">
+    <entry file="file://$PROJECT_DIR$/lib/components/example/progress_dialog.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="426">
-          <caret line="127" column="16" selection-start-line="127" selection-start-column="16" selection-end-line="127" selection-end-column="16" />
+        <state relative-caret-position="63">
+          <caret line="3" column="9" selection-start-line="3" selection-start-column="9" selection-end-line="3" selection-end-column="9" />
           <folding>
-            <element signature="e#0#5073#0" expanded="true" />
+            <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/annotated_region.dart">
+    <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state>
-          <folding>
-            <element signature="e#0#1741#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="42">
+          <caret line="2" column="66" selection-start-line="2" selection-start-column="66" selection-end-line="2" selection-end-column="66" />
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/app.dart">
+    <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/widgets/container.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-2150">
-          <caret line="148" column="17" selection-start-line="148" selection-start-column="17" selection-end-line="148" selection-end-column="17" />
-          <folding>
-            <element signature="e#0#52003#0" expanded="true" />
-            <element signature="e#166#186#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="605">
+          <caret line="323" column="10" lean-forward="true" selection-start-line="323" selection-start-column="10" selection-end-line="323" selection-end-column="10" />
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/widgets.dart">
+    <entry file="file://C:/FlutterSDK/flutter/bin/cache/pkg/sky_engine/lib/core/double.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="801">
-          <caret line="41" column="28" lean-forward="true" selection-start-line="41" selection-start-column="28" selection-end-line="41" selection-end-column="28" />
-          <folding>
-            <element signature="e#0#4542#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="290">
+          <caret line="26" column="22" selection-start-line="26" selection-start-column="22" selection-end-line="26" selection-end-column="22" />
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/framework.dart">
+    <entry file="file://C:/FlutterSDK/flutter/packages/flutter/lib/src/rendering/box.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="772">
-          <caret line="1835" column="23" selection-start-line="1835" selection-start-column="15" selection-end-line="1835" selection-end-column="23" />
+        <state relative-caret-position="290">
+          <caret line="87" column="8" selection-start-line="87" selection-start-column="8" selection-end-line="87" selection-end-column="8" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_item.dart">
+    <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="300">
-          <caret line="12" column="5" selection-start-line="12" selection-start-column="5" selection-end-line="12" selection-end-column="5" />
+        <state relative-caret-position="231">
+          <caret line="202" column="28" lean-forward="true" selection-start-line="202" selection-start-column="28" selection-end-line="202" selection-end-column="28" />
           <folding>
             <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/components/example/listview_dialog.dart">
+    <entry file="file://$PROJECT_DIR$/lib/components/example/bottom_sheet_dialog.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state>
+        <state relative-caret-position="420">
+          <caret line="20" column="23" lean-forward="true" selection-start-line="20" selection-start-column="23" selection-end-line="20" selection-end-column="23" />
           <folding>
             <element signature="e#0#39#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/components/bean/dialog_gravity.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="325">
-          <caret line="13" selection-start-line="13" selection-end-line="13" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/dialog.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="203">
-          <caret line="36" column="6" selection-start-line="36" selection-start-column="6" selection-end-line="36" selection-end-column="12" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog_widget.dart">
+    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="50">
-          <caret line="2" column="30" selection-start-line="2" selection-start-column="30" selection-end-line="2" selection-end-column="30" />
+        <state relative-caret-position="315">
+          <caret line="15" column="38" selection-start-line="15" selection-start-column="38" selection-end-line="15" selection-end-column="38" />
+          <folding>
+            <element signature="e#32#71#0" expanded="true" />
+          </folding>
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/widgets/media_query.dart">
+    <entry file="file://$PROJECT_DIR$/README.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="232">
-          <caret line="716" column="32" selection-start-line="716" selection-start-column="32" selection-end-line="716" selection-end-column="32" />
+        <state relative-caret-position="462">
+          <caret line="85" column="4" selection-start-line="85" selection-start-column="4" selection-end-line="85" selection-end-column="4" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+    <entry file="file://$PROJECT_DIR$/README_CN.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="832">
-          <caret line="55" column="23" selection-start-line="55" selection-start-column="23" selection-end-line="55" selection-end-column="23" />
-          <folding>
-            <element signature="e#32#71#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="577">
+          <caret line="86" column="18" lean-forward="true" selection-start-line="86" selection-start-column="18" selection-end-line="86" selection-end-column="18" />
         </state>
       </provider>
     </entry>
-    <entry file="file://D:/Program Files/flutter/packages/flutter/lib/src/material/scaffold.dart">
+    <entry file="file://$PROJECT_DIR$/CHANGELOG.md">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="82">
-          <caret line="1212" column="68" selection-start-line="1212" selection-start-column="60" selection-end-line="1212" selection-end-column="68" />
+        <state relative-caret-position="441">
+          <caret line="21" column="7" lean-forward="true" selection-start-line="21" selection-start-column="7" selection-end-line="21" selection-end-column="7" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/components/example/alert_dialog.dart">
+    <entry file="file://$PROJECT_DIR$/pubspec.lock">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="125">
-          <caret line="5" column="33" selection-start-line="5" selection-start-column="26" selection-end-line="5" selection-end-column="33" />
-          <folding>
-            <element signature="e#0#39#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="316">
+          <caret line="91" column="23" selection-start-line="91" selection-start-column="23" selection-end-line="91" selection-end-column="23" />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/lib/flutter_custom_dialog.dart">
+    <entry file="file://$PROJECT_DIR$/pubspec.yaml">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="307">
-          <caret line="43" column="27" lean-forward="true" selection-start-line="43" selection-start-column="27" selection-end-line="43" selection-end-column="27" />
-          <folding>
-            <element signature="e#0#39#0" expanded="true" />
-          </folding>
+        <state relative-caret-position="63">
+          <caret line="3" column="24" selection-start-line="3" selection-start-column="24" selection-end-line="3" selection-end-column="24" />
         </state>
       </provider>
     </entry>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 920a223..de84078 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,4 +17,8 @@
 
 ## 1.0.4
 
-* Without the Context to invoke
\ No newline at end of file
+* Without the Context to invoke
+
+## 1.0.5
+
+* Modify constraints property
\ No newline at end of file
diff --git a/README.md b/README.md
index 4bda185..f287264 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Global dialog function encapsulation, with a semantic way to fill the content in
 
 ```yaml
 dependencies:
-  flutter_custom_dialog: ^1.0.4
+  flutter_custom_dialog: ^1.0.5
 ```
 
 **2、import**
@@ -83,6 +83,13 @@ import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
       <br />
       ✅
     </td>
+    <td align="center">
+      <img src="https://github.com/YYFlutter/flutter-custom-dialog/raw/master/image/png/9.png" width="150px">
+      <br />
+      bottom sheet
+      <br />
+      ✅
+    </td>
     <td align="center">
       <img src="https://github.com/YYFlutter/flutter-custom-dialog/raw/master/image/png/8.png" width="150px">
       <br />
diff --git a/README_CN.md b/README_CN.md
index 75e61b3..8d2c5d4 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -15,7 +15,7 @@
 
 ```yaml
 dependencies:
-  flutter_custom_dialog: ^1.0.4
+  flutter_custom_dialog: ^1.0.5
 ```
 
 **2、import**
@@ -81,6 +81,13 @@ import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
       <br />
       ✅
     </td>
+    <td align="center">
+      <img src="https://github.com/YYFlutter/flutter-custom-dialog/raw/master/image/png/9.png" width="150px">
+      <br />
+      bottom sheet
+      <br />
+      ✅
+    </td>
     <td align="center">
       <img src="https://github.com/YYFlutter/flutter-custom-dialog/raw/master/image/png/8.png" width="150px">
       <br />
diff --git a/example/ios/Flutter/flutter_export_environment.sh b/example/ios/Flutter/flutter_export_environment.sh
index b169a63..4194356 100644
--- a/example/ios/Flutter/flutter_export_environment.sh
+++ b/example/ios/Flutter/flutter_export_environment.sh
@@ -1,8 +1,8 @@
 #!/bin/sh
 # This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=D:\Program Files\flutter"
-export "FLUTTER_APPLICATION_PATH=E:\YPlugin\package\flutter_custom_dialog\example"
+export "FLUTTER_ROOT=C:\FlutterSDK\flutter"
+export "FLUTTER_APPLICATION_PATH=C:\YYLive4-OpenSource\flutter-custom-dialog\example"
 export "FLUTTER_TARGET=lib\main.dart"
 export "FLUTTER_BUILD_DIR=build"
 export "SYMROOT=${SOURCE_ROOT}/../build\ios"
-export "FLUTTER_FRAMEWORK_DIR=D:\Program Files\flutter\bin\cache\artifacts\engine\ios"
+export "FLUTTER_FRAMEWORK_DIR=C:\FlutterSDK\flutter\bin\cache\artifacts\engine\ios"
diff --git a/example/lib/main.dart b/example/lib/main.dart
index 1d0e763..c0497a4 100644
--- a/example/lib/main.dart
+++ b/example/lib/main.dart
@@ -1,8 +1,8 @@
 library flutter_custom_dialog;
 
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_dialog/components/bean/dialog_gravity.dart';
 import 'package:flutter_custom_dialog/components/example/alert_dialog.dart';
+import 'package:flutter_custom_dialog/components/example/bottom_sheet_dialog.dart';
 import 'package:flutter_custom_dialog/components/example/listview_dialog.dart';
 import 'package:flutter_custom_dialog/components/example/progress_dialog.dart';
 import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
@@ -71,10 +71,13 @@ showAlertDialog(BuildContext context) {
         ),
         Row(
           children: <Widget>[
-            makeTextButton("nobody", () {
+            makeTextButton("bottomsheet", () {
+              YYBottomSheetDialog();
+            }),
+            makeTextButton("progress", () {
               YYProgressDialogNoBody();
             }),
-            makeTextButton("body", () {
+            makeTextButton("progress\n&body", () {
               YYProgressDialogBody();
             }),
             makeTextButton("pop\nmenu", () {
diff --git a/example/pubspec.lock b/example/pubspec.lock
index ab7d6ba..e427649 100644
--- a/example/pubspec.lock
+++ b/example/pubspec.lock
@@ -47,7 +47,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.0.3"
+    version: "1.0.4"
   flutter_test:
     dependency: "direct dev"
     description: flutter
diff --git a/image/png/9.png b/image/png/9.png
new file mode 100644
index 0000000000000000000000000000000000000000..2f7c5d13eb20a3e80db0ed9c7ee6dd1278139e17
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diff --git a/lib/components/bean/dialog_gravity.dart b/lib/components/bean/dialog_gravity.dart
deleted file mode 100644
index 1b31d7c..0000000
--- a/lib/components/bean/dialog_gravity.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-export 'package:flutter_custom_dialog/components/bean/dialog_gravity.dart';
-
-enum Gravity {
-  left,
-  top,
-  bottom,
-  right,
-  center,
-  rightTop,
-  leftTop,
-  rightBottom,
-  leftBottom,
-}
diff --git a/lib/components/bean/dialog_item.dart b/lib/components/bean/dialog_item.dart
deleted file mode 100644
index 393a109..0000000
--- a/lib/components/bean/dialog_item.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-import 'package:flutter/material.dart';
-
-export 'package:flutter_custom_dialog/components/bean/dialog_item.dart';
-
-class ListTileItem {
-  ListTileItem({
-    this.padding,
-    this.leading,
-    this.text,
-    this.color,
-    this.fontSize,
-    this.fontWeight,
-  });
-
-  EdgeInsets padding;
-  Widget leading;
-  String text;
-  Color color;
-  double fontSize;
-  FontWeight fontWeight;
-}
-
-class RadioItem {
-  RadioItem({
-    this.padding,
-    this.text,
-    this.color,
-    this.fontSize,
-    this.fontWeight,
-    this.onTap,
-  });
-
-  EdgeInsets padding;
-  String text;
-  Color color;
-  double fontSize;
-  FontWeight fontWeight;
-  Function(int) onTap;
-}
diff --git a/lib/components/example/alert_dialog.dart b/lib/components/example/alert_dialog.dart
index 5f595d1..7498e90 100644
--- a/lib/components/example/alert_dialog.dart
+++ b/lib/components/example/alert_dialog.dart
@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_dialog/components/bean/dialog_gravity.dart';
 import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
 
 YYDialog YYAlertDialogBody() {
diff --git a/lib/components/example/bottom_sheet_dialog.dart b/lib/components/example/bottom_sheet_dialog.dart
new file mode 100644
index 0000000..b651458
--- /dev/null
+++ b/lib/components/example/bottom_sheet_dialog.dart
@@ -0,0 +1,37 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
+
+YYDialog YYBottomSheetDialog() {
+  return YYDialog().build()
+    ..gravity = Gravity.bottom
+    ..gravityAnimationEnable = true
+    ..backgroundColor = Colors.transparent
+    ..widget(Container(
+      width: 300,
+      height: 45,
+      margin: EdgeInsets.only(bottom: 10),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(8.0),
+        color: Colors.white,
+      ),
+      child: Center(
+        child: Text("Block"),
+      ),
+    ))
+    ..widget(Container(
+      width: 300,
+      height: 45,
+      margin: EdgeInsets.only(bottom: 20),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(8.0),
+        color: Colors.white,
+      ),
+      child: Center(
+        child: Text(
+          "cancel",
+          style: TextStyle(color: Colors.grey[400]),
+        ),
+      ),
+    ))
+    ..show();
+}
diff --git a/lib/components/example/listview_dialog.dart b/lib/components/example/listview_dialog.dart
index 5cec826..d2f242c 100644
--- a/lib/components/example/listview_dialog.dart
+++ b/lib/components/example/listview_dialog.dart
@@ -1,6 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_dialog/components/bean/dialog_gravity.dart';
-import 'package:flutter_custom_dialog/components/bean/dialog_item.dart';
 import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
 
 var listTileItems = [
diff --git a/lib/flutter_custom_dialog.dart b/lib/flutter_custom_dialog.dart
index e2d5cf2..6aad1f1 100644
--- a/lib/flutter_custom_dialog.dart
+++ b/lib/flutter_custom_dialog.dart
@@ -1,7 +1,5 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_custom_dialog/components/bean/dialog_item.dart';
 
-import 'components/bean/dialog_gravity.dart';
 import 'flutter_custom_dialog_widget.dart';
 
 export 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
@@ -258,11 +256,7 @@ class YYDialog {
                   borderRadius: BorderRadius.circular(borderRadius),
                   color: backgroundColor,
                 ),
-                constraints: constraints ??
-                    BoxConstraints(
-                      minHeight: size.height * .1,
-                      minWidth: size.width * .1,
-                    ),
+                constraints: constraints ?? BoxConstraints(),
                 child: CustomDialogChildren(
                   widgetList: widgetList,
                   isShowingChange: (bool isShowingChange) {
@@ -505,3 +499,55 @@ class CustomDialog {
     );
   }
 }
+
+//================================弹窗重心======================================
+enum Gravity {
+  left,
+  top,
+  bottom,
+  right,
+  center,
+  rightTop,
+  leftTop,
+  rightBottom,
+  leftBottom,
+}
+//============================================================================
+
+//================================弹窗实体======================================
+class ListTileItem {
+  ListTileItem({
+    this.padding,
+    this.leading,
+    this.text,
+    this.color,
+    this.fontSize,
+    this.fontWeight,
+  });
+
+  EdgeInsets padding;
+  Widget leading;
+  String text;
+  Color color;
+  double fontSize;
+  FontWeight fontWeight;
+}
+
+class RadioItem {
+  RadioItem({
+    this.padding,
+    this.text,
+    this.color,
+    this.fontSize,
+    this.fontWeight,
+    this.onTap,
+  });
+
+  EdgeInsets padding;
+  String text;
+  Color color;
+  double fontSize;
+  FontWeight fontWeight;
+  Function(int) onTap;
+}
+//============================================================================
diff --git a/lib/flutter_custom_dialog_widget.dart b/lib/flutter_custom_dialog_widget.dart
index 28825cc..f90bb87 100644
--- a/lib/flutter_custom_dialog_widget.dart
+++ b/lib/flutter_custom_dialog_widget.dart
@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 
-import 'components/bean/dialog_item.dart';
-
+import 'package:flutter_custom_dialog/flutter_custom_dialog.dart';
 export 'package:flutter_custom_dialog/flutter_custom_dialog_widget.dart';
 
 class YYRadioListTile extends StatefulWidget {
diff --git a/pubspec.lock b/pubspec.lock
index aebdafa..7642229 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -7,14 +7,14 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.3.0"
+    version: "2.2.0"
   boolean_selector:
     dependency: transitive
     description:
       name: boolean_selector
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.0.4"
   charcode:
     dependency: transitive
     description:
@@ -52,28 +52,28 @@ packages:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.1.7"
+    version: "1.1.6"
   path:
     dependency: transitive
     description:
       name: path
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.4"
+    version: "1.6.2"
   pedantic:
     dependency: transitive
     description:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.8.0+1"
+    version: "1.7.0"
   quiver:
     dependency: transitive
     description:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.5"
+    version: "2.0.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -106,7 +106,7 @@ packages:
       name: string_scanner
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.5"
+    version: "1.0.4"
   term_glyph:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 4c8c56b..56f7bc6 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_custom_dialog
 description: Semantic dialog
-version: 1.0.4
+version: 1.0.5
 author: AndroidHensen <xyj510402535@qq.com>
 homepage: https://github.com/YYFlutter/flutter-custom-dialog.git