From 4c51171127312650fe0b09b539657a2f7a335d66 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=8D=93=E5=8E=9F?= <zhuoyuan93@gmail.com>
Date: Mon, 24 Sep 2018 14:48:54 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E7=A4=BA=E4=BE=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .idea/libraries/Dart_Packages.xml | 223 +++++++++++++++++++++++-------
 .idea/screenutil.iml              |   3 +
 .idea/workspace.xml               | 192 +++++++++++++++++++++----
 README.md                         |  33 ++---
 example/example.iml               |  14 ++
 5 files changed, 370 insertions(+), 95 deletions(-)
 create mode 100644 example/example.iml

diff --git a/.idea/libraries/Dart_Packages.xml b/.idea/libraries/Dart_Packages.xml
index 6ecdc03..79eb5fe 100644
--- a/.idea/libraries/Dart_Packages.xml
+++ b/.idea/libraries/Dart_Packages.xml
@@ -5,6 +5,7 @@
         <entry key="analyzer">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/analyzer-0.32.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/analyzer-0.32.4/lib" />
             </list>
           </value>
@@ -12,6 +13,7 @@
         <entry key="args">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/args-1.5.0/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/args-1.5.0/lib" />
             </list>
           </value>
@@ -19,6 +21,7 @@
         <entry key="async">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/async-2.0.8/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/async-2.0.8/lib" />
             </list>
           </value>
@@ -26,6 +29,7 @@
         <entry key="boolean_selector">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/boolean_selector-1.0.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/boolean_selector-1.0.4/lib" />
             </list>
           </value>
@@ -33,6 +37,7 @@
         <entry key="charcode">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/charcode-1.1.2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/charcode-1.1.2/lib" />
             </list>
           </value>
@@ -40,6 +45,7 @@
         <entry key="collection">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/collection-1.14.11/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/collection-1.14.11/lib" />
             </list>
           </value>
@@ -47,6 +53,7 @@
         <entry key="convert">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/convert-2.0.2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/convert-2.0.2/lib" />
             </list>
           </value>
@@ -54,6 +61,7 @@
         <entry key="crypto">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/crypto-2.0.6/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/crypto-2.0.6/lib" />
             </list>
           </value>
@@ -61,20 +69,37 @@
         <entry key="csslib">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/csslib-0.14.5/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/csslib-0.14.5/lib" />
             </list>
           </value>
         </entry>
+        <entry key="cupertino_icons">
+          <value>
+            <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/cupertino_icons-0.1.2/lib" />
+            </list>
+          </value>
+        </entry>
         <entry key="flutter">
           <value>
             <list>
+              <option value="D:/flutter/packages/flutter/lib" />
               <option value="d:/flutter/packages/flutter/lib" />
             </list>
           </value>
         </entry>
+        <entry key="flutter_screenutil">
+          <value>
+            <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/git/flutter_screenUtil-94af1bacf4c9f89461a592b26fac8eceb1df3343/lib" />
+            </list>
+          </value>
+        </entry>
         <entry key="flutter_test">
           <value>
             <list>
+              <option value="D:/flutter/packages/flutter_test/lib" />
               <option value="d:/flutter/packages/flutter_test/lib" />
             </list>
           </value>
@@ -82,6 +107,7 @@
         <entry key="front_end">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/front_end-0.1.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/front_end-0.1.4/lib" />
             </list>
           </value>
@@ -89,6 +115,7 @@
         <entry key="glob">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/glob-1.1.7/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/glob-1.1.7/lib" />
             </list>
           </value>
@@ -96,6 +123,7 @@
         <entry key="html">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/html-0.13.3+3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/html-0.13.3+3/lib" />
             </list>
           </value>
@@ -103,6 +131,7 @@
         <entry key="http">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/http-0.11.3+17/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http-0.11.3+17/lib" />
             </list>
           </value>
@@ -110,6 +139,7 @@
         <entry key="http_multi_server">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/http_multi_server-2.0.5/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_multi_server-2.0.5/lib" />
             </list>
           </value>
@@ -117,6 +147,7 @@
         <entry key="http_parser">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/http_parser-3.1.3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_parser-3.1.3/lib" />
             </list>
           </value>
@@ -124,6 +155,7 @@
         <entry key="io">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/io-0.3.3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/io-0.3.3/lib" />
             </list>
           </value>
@@ -131,6 +163,7 @@
         <entry key="js">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/js-0.6.1+1/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/js-0.6.1+1/lib" />
             </list>
           </value>
@@ -138,6 +171,7 @@
         <entry key="json_rpc_2">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/json_rpc_2-2.0.9/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/json_rpc_2-2.0.9/lib" />
             </list>
           </value>
@@ -145,6 +179,7 @@
         <entry key="kernel">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/kernel-0.3.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/kernel-0.3.4/lib" />
             </list>
           </value>
@@ -152,6 +187,7 @@
         <entry key="logging">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/logging-0.11.3+2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/logging-0.11.3+2/lib" />
             </list>
           </value>
@@ -159,6 +195,7 @@
         <entry key="matcher">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/matcher-0.12.3+1/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/matcher-0.12.3+1/lib" />
             </list>
           </value>
@@ -166,6 +203,7 @@
         <entry key="meta">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/meta-1.1.6/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/meta-1.1.6/lib" />
             </list>
           </value>
@@ -173,6 +211,7 @@
         <entry key="mime">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/mime-0.9.6+2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/mime-0.9.6+2/lib" />
             </list>
           </value>
@@ -180,6 +219,7 @@
         <entry key="multi_server_socket">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/multi_server_socket-1.0.2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/multi_server_socket-1.0.2/lib" />
             </list>
           </value>
@@ -187,6 +227,7 @@
         <entry key="node_preamble">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/node_preamble-1.4.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/node_preamble-1.4.4/lib" />
             </list>
           </value>
@@ -194,6 +235,7 @@
         <entry key="package_config">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/package_config-1.0.5/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_config-1.0.5/lib" />
             </list>
           </value>
@@ -201,6 +243,7 @@
         <entry key="package_resolver">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/package_resolver-1.0.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_resolver-1.0.4/lib" />
             </list>
           </value>
@@ -208,6 +251,7 @@
         <entry key="path">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/path-1.6.2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/path-1.6.2/lib" />
             </list>
           </value>
@@ -215,6 +259,7 @@
         <entry key="plugin">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/plugin-0.2.0+3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/plugin-0.2.0+3/lib" />
             </list>
           </value>
@@ -222,6 +267,7 @@
         <entry key="pool">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/pool-1.3.6/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pool-1.3.6/lib" />
             </list>
           </value>
@@ -229,6 +275,7 @@
         <entry key="pub_semver">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/pub_semver-1.4.2/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pub_semver-1.4.2/lib" />
             </list>
           </value>
@@ -236,6 +283,7 @@
         <entry key="quiver">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/quiver-2.0.0+1/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/quiver-2.0.0+1/lib" />
             </list>
           </value>
@@ -243,6 +291,7 @@
         <entry key="shelf">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/shelf-0.7.3+3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf-0.7.3+3/lib" />
             </list>
           </value>
@@ -250,6 +299,7 @@
         <entry key="shelf_packages_handler">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/shelf_packages_handler-1.0.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_packages_handler-1.0.4/lib" />
             </list>
           </value>
@@ -257,6 +307,7 @@
         <entry key="shelf_static">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/shelf_static-0.2.8/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_static-0.2.8/lib" />
             </list>
           </value>
@@ -264,6 +315,7 @@
         <entry key="shelf_web_socket">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/shelf_web_socket-0.2.2+4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_web_socket-0.2.2+4/lib" />
             </list>
           </value>
@@ -271,6 +323,7 @@
         <entry key="sky_engine">
           <value>
             <list>
+              <option value="D:/flutter/bin/cache/pkg/sky_engine/lib" />
               <option value="d:/flutter/bin/cache/pkg/sky_engine/lib" />
             </list>
           </value>
@@ -278,6 +331,7 @@
         <entry key="source_map_stack_trace">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/source_map_stack_trace-1.1.5/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_map_stack_trace-1.1.5/lib" />
             </list>
           </value>
@@ -285,6 +339,7 @@
         <entry key="source_maps">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/source_maps-0.10.7/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_maps-0.10.7/lib" />
             </list>
           </value>
@@ -292,6 +347,7 @@
         <entry key="source_span">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/source_span-1.4.1/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_span-1.4.1/lib" />
             </list>
           </value>
@@ -299,6 +355,7 @@
         <entry key="stack_trace">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/stack_trace-1.9.3/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stack_trace-1.9.3/lib" />
             </list>
           </value>
@@ -306,6 +363,7 @@
         <entry key="stream_channel">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/stream_channel-1.6.8/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stream_channel-1.6.8/lib" />
             </list>
           </value>
@@ -313,6 +371,7 @@
         <entry key="string_scanner">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/string_scanner-1.0.4/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/string_scanner-1.0.4/lib" />
             </list>
           </value>
@@ -320,6 +379,7 @@
         <entry key="term_glyph">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/term_glyph-1.0.1/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/term_glyph-1.0.1/lib" />
             </list>
           </value>
@@ -327,6 +387,7 @@
         <entry key="test">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/test-1.3.0/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/test-1.3.0/lib" />
             </list>
           </value>
@@ -334,6 +395,7 @@
         <entry key="typed_data">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/typed_data-1.1.6/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/typed_data-1.1.6/lib" />
             </list>
           </value>
@@ -341,6 +403,7 @@
         <entry key="utf">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/utf-0.9.0+5/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/utf-0.9.0+5/lib" />
             </list>
           </value>
@@ -348,6 +411,7 @@
         <entry key="vector_math">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/vector_math-2.0.8/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vector_math-2.0.8/lib" />
             </list>
           </value>
@@ -355,6 +419,7 @@
         <entry key="vm_service_client">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/vm_service_client-0.2.6/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vm_service_client-0.2.6/lib" />
             </list>
           </value>
@@ -362,6 +427,7 @@
         <entry key="watcher">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/watcher-0.9.7+10/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/watcher-0.9.7+10/lib" />
             </list>
           </value>
@@ -369,6 +435,7 @@
         <entry key="web_socket_channel">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/web_socket_channel-1.0.9/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/web_socket_channel-1.0.9/lib" />
             </list>
           </value>
@@ -376,6 +443,7 @@
         <entry key="yaml">
           <value>
             <list>
+              <option value="$USER_HOME$/AppData/Roaming/Pub/Cache/hosted/pub.flutter-io.cn/yaml-2.1.15/lib" />
               <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/yaml-2.1.15/lib" />
             </list>
           </value>
@@ -383,60 +451,113 @@
       </option>
     </properties>
     <CLASSES>
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/analyzer-0.32.4/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/args-1.5.0/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/async-2.0.8/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/boolean_selector-1.0.4/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/charcode-1.1.2/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/collection-1.14.11/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/convert-2.0.2/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/crypto-2.0.6/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/csslib-0.14.5/lib" />
-      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/front_end-0.1.4/lib" />
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+      <root url="file://d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/yaml-2.1.15/lib" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />
diff --git a/.idea/screenutil.iml b/.idea/screenutil.iml
index ae9af97..97ae688 100644
--- a/.idea/screenutil.iml
+++ b/.idea/screenutil.iml
@@ -6,6 +6,9 @@
       <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
       <excludeFolder url="file://$MODULE_DIR$/.pub" />
       <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/example/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/example/build" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 9df58f3..5f7bef0 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,8 +2,11 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="4b1e7c8a-90e5-4705-b34f-bcaa595e12fe" name="Default" comment="">
-      <change beforePath="" afterPath="$PROJECT_DIR$/lib/flutter_screenutil.dart" />
-      <change beforePath="$PROJECT_DIR$/ScreenUtil.dart" afterPath="$PROJECT_DIR$/lib/flutter_screenutil.dart" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/example/example.iml" />
+      <change beforePath="$PROJECT_DIR$/.idea/libraries/Dart_Packages.xml" afterPath="$PROJECT_DIR$/.idea/libraries/Dart_Packages.xml" />
+      <change beforePath="$PROJECT_DIR$/.idea/screenutil.iml" afterPath="$PROJECT_DIR$/.idea/screenutil.iml" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
+      <change beforePath="$PROJECT_DIR$/README.md" afterPath="$PROJECT_DIR$/README.md" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
     <option name="TRACKING_ENABLED" value="true" />
@@ -13,8 +16,8 @@
     <option name="LAST_RESOLUTION" value="IGNORE" />
   </component>
   <component name="FileEditorManager">
-    <leaf>
-      <file leaf-file-name="flutter_screenutil.dart" pinned="false" current-in-tab="true">
+    <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
+      <file leaf-file-name="flutter_screenutil.dart" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/lib/flutter_screenutil.dart">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="0">
@@ -24,6 +27,38 @@
           </provider>
         </entry>
       </file>
+      <file leaf-file-name="main.dart" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="432">
+              <caret line="43" column="71" lean-forward="true" selection-start-line="36" selection-start-column="3" selection-end-line="43" selection-end-column="71" />
+              <folding>
+                <element signature="e#0#39#0" expanded="true" />
+              </folding>
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="README.md" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/README.md">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="54">
+              <caret line="80" column="24" lean-forward="true" selection-start-line="80" selection-start-column="24" selection-end-line="80" selection-end-column="24" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="pubspec.yaml" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/example/pubspec.yaml">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="376">
+              <caret line="23" column="13" lean-forward="false" selection-start-line="23" selection-start-column="13" selection-end-line="23" selection-end-column="13" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
     </leaf>
   </component>
   <component name="Git.Settings">
@@ -34,6 +69,15 @@
       <projects_view />
     </option>
   </component>
+  <component name="IdeDocumentHistory">
+    <option name="CHANGED_PATHS">
+      <list>
+        <option value="$PROJECT_DIR$/example/pubspec.yaml" />
+        <option value="$PROJECT_DIR$/example/lib/main.dart" />
+        <option value="$PROJECT_DIR$/README.md" />
+      </list>
+    </option>
+  </component>
   <component name="ProjectFrameBounds" extendedState="6">
     <option name="x" value="-8" />
     <option name="width" value="1936" />
@@ -58,20 +102,40 @@
     </navigator>
     <panes>
       <pane id="Scope" />
+      <pane id="PackagesPane" />
+      <pane id="Scratches" />
       <pane id="ProjectPane">
         <subPane>
           <expand>
             <path>
-              <item name="screenutil" type="b2602c69:ProjectViewProjectNode" />
-              <item name="screenutil" type="462c0819:PsiDirectoryNode" />
+              <item name="flutter_ScreenUtil" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_ScreenUtil" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_ScreenUtil" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_ScreenUtil" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_ScreenUtil" type="b2602c69:ProjectViewProjectNode" />
+              <item name="flutter_ScreenUtil" type="462c0819:PsiDirectoryNode" />
+              <item name="example" type="462c0819:PsiDirectoryNode" />
+              <item name="lib" type="462c0819:PsiDirectoryNode" />
+            </path>
+            <path>
+              <item name="flutter_ScreenUtil" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="cb654da1:ExternalLibrariesNode" />
+            </path>
+            <path>
+              <item name="flutter_ScreenUtil" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="cb654da1:ExternalLibrariesNode" />
+              <item name="Dart Packages" type="3dd79eb:DartTreeStructureProvider$1" />
             </path>
           </expand>
           <select />
         </subPane>
       </pane>
-      <pane id="PackagesPane" />
       <pane id="AndroidView" />
-      <pane id="Scratches" />
     </panes>
   </component>
   <component name="PropertiesComponent">
@@ -82,6 +146,7 @@
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
     <property name="show.migrate.to.gradle.popup" value="false" />
     <property name="dart.analysis.tool.window.force.activate" value="false" />
+    <property name="io.flutter.reload.alreadyRun" value="true" />
   </component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
@@ -115,6 +180,9 @@
       <module name="" />
       <envs />
     </configuration>
+    <configuration name="main.dart" type="FlutterRunConfigurationType" factoryName="Flutter" temporary="true" nameIsGenerated="true">
+      <option name="filePath" value="$PROJECT_DIR$/example/lib/main.dart" />
+    </configuration>
     <configuration default="true" type="Remote" factoryName="Remote">
       <option name="USE_SOCKET_TRANSPORT" value="true" />
       <option name="SERVER_MODE" value="false" />
@@ -182,6 +250,11 @@
     <configuration name="&lt;template&gt;" type="#org.jetbrains.idea.devkit.run.PluginConfigurationType" default="true" selected="false">
       <option name="VM_PARAMETERS" value="-Xmx512m -Xms256m -XX:MaxPermSize=250m -ea" />
     </configuration>
+    <recent_temporary>
+      <list size="1">
+        <item index="0" class="java.lang.String" itemvalue="Flutter.main.dart" />
+      </list>
+    </recent_temporary>
   </component>
   <component name="ShelveChangesManager" show_recycled="false">
     <option name="remove_strategy" value="false" />
@@ -201,33 +274,58 @@
   </component>
   <component name="ToolWindowManager">
     <frame x="-8" y="-8" width="1936" height="1056" extended-state="6" />
+    <editor active="true" />
     <layout>
-      <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
-      <window_info id="Palette&#9;" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Image Layers" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Capture Analysis" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
-      <window_info id="Dart Analysis" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.32936078" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
-      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Flutter Outline" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Capture Tool" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Project" active="true" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
+      <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="true" content_ui="tabs" />
+      <window_info id="Dart Analysis" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3297062" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Flutter Outline" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Capture Tool" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Theme Preview" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
       <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
-      <window_info id="Flutter Inspector" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
+      <window_info id="Messages" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3297062" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Palette&#9;" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Image Layers" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Capture Analysis" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.3297062" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.3297062" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
+      <window_info id="Fabric" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Theme Preview" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="true" content_ui="tabs" />
+      <window_info id="Flutter Inspector" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
+      <window_info id="Android Profiler" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Commander" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
+      <window_info id="Build Variants" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
+      <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="8" side_tool="true" content_ui="tabs" />
+      <window_info id="Dart Analysis" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.32936078" sideWeight="0.5" order="8" side_tool="false" content_ui="tabs" />
+      <window_info id="Flutter Outline" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
+      <window_info id="Logcat" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Capture Tool" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Hierarchy" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" />
+      <window_info id="Designer" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
+      <window_info id="Ant Build" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
+      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Device File Explorer" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
+      <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
+      <window_info id="Palette&#9;" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
+      <window_info id="Image Layers" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
+      <window_info id="Capture Analysis" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Inspection" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="5" side_tool="false" content_ui="tabs" />
+      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="8" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
+      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="8" side_tool="false" content_ui="tabs" />
       <window_info id="Captures" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
-      <window_info id="Hierarchy" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" />
+      <window_info id="Project" active="true" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
       <window_info id="Find" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Ant Build" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
+      <window_info id="Theme Preview" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
+      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="true" content_ui="tabs" />
+      <window_info id="Flutter Inspector" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
     </layout>
   </component>
   <component name="VcsContentAnnotationSettings">
@@ -246,6 +344,48 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/pubspec.yaml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="243">
+          <caret line="9" column="13" lean-forward="false" selection-start-line="9" selection-start-column="13" selection-end-line="9" selection-end-column="13" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/lib/flutter_screenutil.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/pubspec.yaml">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="376">
+          <caret line="23" column="13" lean-forward="false" selection-start-line="23" selection-start-column="13" selection-end-line="23" selection-end-column="13" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="432">
+          <caret line="43" column="71" lean-forward="true" selection-start-line="36" selection-start-column="3" selection-end-line="43" selection-end-column="71" />
+          <folding>
+            <element signature="e#0#39#0" expanded="true" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/README.md">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="54">
+          <caret line="80" column="24" lean-forward="true" selection-start-line="80" selection-start-column="24" selection-end-line="80" selection-end-column="24" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
   </component>
   <component name="masterDetails">
     <states>
diff --git a/README.md b/README.md
index 6068572..6312bde 100644
--- a/README.md
+++ b/README.md
@@ -52,14 +52,14 @@ height: ScreenUtil().setHeight(200),
 
 其他相关api：
 
-    print(ScreenUtil.pixelRatio);       //设备的像素密度
-    print(ScreenUtil.screenWidth);     //设备宽度
-    print(ScreenUtil.screenHeight);    //设备高度      
-    print(ScreenUtil.bottomBarHeight); //底部安全区距离，适用于全面屏下面有按键的
-    print(ScreenUtil.statusBarHeight); //状态栏高度 刘海屏会更高
+    ScreenUtil.pixelRatio       //设备的像素密度
+    ScreenUtil.screenWidth    //设备宽度
+    ScreenUtil.screenHeight    //设备高度
+    ScreenUtil.bottomBarHeight //底部安全区距离，适用于全面屏下面有按键的
+    ScreenUtil.statusBarHeight //状态栏高度 刘海屏会更高
 
-    print(ScreenUtil().scaleWidth); //宽度相对于设计稿放大的倍数
-    print(ScreenUtil().scaleHeight); //高度相对于设计稿放大的倍数
+    ScreenUtil().scaleWidth //宽度相对于设计稿放大的倍数
+    ScreenUtil().scaleHeight //高度相对于设计稿放大的倍数
 
 ```
 
@@ -70,17 +70,14 @@ import 'package:flutter_app/ScreenUtil.dart';  //导入
   Widget build(BuildContext context) { 
    
  print(ScreenUtil().setWidth(180));
-    print(ScreenUtil().setWidth(540));
-    print(ScreenUtil.screenWidth / ScreenUtil.pixelRatio);
-
-    print(ScreenUtil.pixelRatio);       //设备的像素密度
-    print(ScreenUtil.screenWidth);     //设备宽度
-    print(ScreenUtil.screenHeight);    //设备高度      
-    print(ScreenUtil.bottomBarHeight); //底部安全区距离，适用于全面屏下面有按键的
-    print(ScreenUtil.statusBarHeight); //状态栏高度 刘海屏会更高
-
-    print(ScreenUtil().scaleWidth); //宽度相对于设计稿放大的倍数
-    print(ScreenUtil().scaleHeight); //高度相对于设计稿放大的倍数
+     print('设备的像素密度:${ScreenUtil.pixelRatio}'); //设备的像素密度
+        print('设备宽度:${ScreenUtil.screenWidth}'); //设备宽度
+        print('设备高度:${ScreenUtil.screenHeight}'); //设备高度
+        print('底部安全区距离:${ScreenUtil.bottomBarHeight}'); //底部安全区距离，适用于全面屏下面有按键的
+        print('状态栏高度:${ScreenUtil.statusBarHeight}px'); //状态栏高度 刘海屏会更高
+
+        print('宽度相对于设计稿放大的倍数:${ScreenUtil().scaleWidth}'); //宽度相对于设计稿放大的倍数
+        print('高度相对于设计稿放大的倍数:${ScreenUtil().scaleHeight}'); //高度相对于设计稿放大的倍数
     return new Scaffold(
       appBar: new AppBar(
         title: new Text(widget.title),
diff --git a/example/example.iml b/example/example.iml
new file mode 100644
index 0000000..a461e81
--- /dev/null
+++ b/example/example.iml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+    <orderEntry type="library" name="Dart Packages" level="project" />
+  </component>
+</module>
\ No newline at end of file
-- 
GitLab