diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000000000000000000000000000000000000..30aa626c23142d59e94cc76327172301f159b618
--- /dev/null
+++ b/.idea/codeStyles/Project.xml
@@ -0,0 +1,29 @@
+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <Objective-C-extensions>
+      <file>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
+      </file>
+      <class>
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
+        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
+      </class>
+      <extensions>
+        <pair source="cpp" header="h" fileNamingConvention="NONE" />
+        <pair source="c" header="h" fileNamingConvention="NONE" />
+      </extensions>
+    </Objective-C-extensions>
+  </code_scheme>
+</component>
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..97626ba45445dc9f3afa66e6a149914dc39e3df6
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="PROJECT" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/libraries/Dart_Packages.xml b/.idea/libraries/Dart_Packages.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6ecdc03ab3c912bee5d5212720c7810badf47d06
--- /dev/null
+++ b/.idea/libraries/Dart_Packages.xml
@@ -0,0 +1,444 @@
+<component name="libraryTable">
+  <library name="Dart Packages" type="DartPackagesLibraryType">
+    <properties>
+      <option name="packageNameToDirsMap">
+        <entry key="analyzer">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/analyzer-0.32.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="args">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/args-1.5.0/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="async">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/async-2.0.8/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="boolean_selector">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/boolean_selector-1.0.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="charcode">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/charcode-1.1.2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="collection">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/collection-1.14.11/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="convert">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/convert-2.0.2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="crypto">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/crypto-2.0.6/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="csslib">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/csslib-0.14.5/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="flutter">
+          <value>
+            <list>
+              <option value="d:/flutter/packages/flutter/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="flutter_test">
+          <value>
+            <list>
+              <option value="d:/flutter/packages/flutter_test/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="front_end">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/front_end-0.1.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="glob">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/glob-1.1.7/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="html">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/html-0.13.3+3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="http">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http-0.11.3+17/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="http_multi_server">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_multi_server-2.0.5/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="http_parser">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_parser-3.1.3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="io">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/io-0.3.3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="js">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/js-0.6.1+1/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="json_rpc_2">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/json_rpc_2-2.0.9/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="kernel">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/kernel-0.3.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="logging">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/logging-0.11.3+2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="matcher">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/matcher-0.12.3+1/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="meta">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/meta-1.1.6/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="mime">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/mime-0.9.6+2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="multi_server_socket">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/multi_server_socket-1.0.2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="node_preamble">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/node_preamble-1.4.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="package_config">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_config-1.0.5/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="package_resolver">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_resolver-1.0.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="path">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/path-1.6.2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="plugin">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/plugin-0.2.0+3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="pool">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pool-1.3.6/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="pub_semver">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pub_semver-1.4.2/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="quiver">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/quiver-2.0.0+1/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="shelf">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf-0.7.3+3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="shelf_packages_handler">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_packages_handler-1.0.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="shelf_static">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_static-0.2.8/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="shelf_web_socket">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_web_socket-0.2.2+4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="sky_engine">
+          <value>
+            <list>
+              <option value="d:/flutter/bin/cache/pkg/sky_engine/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="source_map_stack_trace">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_map_stack_trace-1.1.5/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="source_maps">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_maps-0.10.7/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="source_span">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_span-1.4.1/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="stack_trace">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stack_trace-1.9.3/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="stream_channel">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stream_channel-1.6.8/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="string_scanner">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/string_scanner-1.0.4/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="term_glyph">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/term_glyph-1.0.1/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="test">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/test-1.3.0/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="typed_data">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/typed_data-1.1.6/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="utf">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/utf-0.9.0+5/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="vector_math">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vector_math-2.0.8/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="vm_service_client">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vm_service_client-0.2.6/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="watcher">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/watcher-0.9.7+10/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="web_socket_channel">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/web_socket_channel-1.0.9/lib" />
+            </list>
+          </value>
+        </entry>
+        <entry key="yaml">
+          <value>
+            <list>
+              <option value="d:/flutter/.pub-cache/hosted/pub.flutter-io.cn/yaml-2.1.15/lib" />
+            </list>
+          </value>
+        </entry>
+      </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" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/glob-1.1.7/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/html-0.13.3+3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http-0.11.3+17/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_multi_server-2.0.5/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/http_parser-3.1.3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/io-0.3.3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/js-0.6.1+1/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/json_rpc_2-2.0.9/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/kernel-0.3.4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/logging-0.11.3+2/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/matcher-0.12.3+1/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/meta-1.1.6/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/mime-0.9.6+2/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/multi_server_socket-1.0.2/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/node_preamble-1.4.4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_config-1.0.5/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/package_resolver-1.0.4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/path-1.6.2/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/plugin-0.2.0+3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pool-1.3.6/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/pub_semver-1.4.2/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/quiver-2.0.0+1/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf-0.7.3+3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_packages_handler-1.0.4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_static-0.2.8/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/shelf_web_socket-0.2.2+4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_map_stack_trace-1.1.5/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_maps-0.10.7/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/source_span-1.4.1/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stack_trace-1.9.3/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/stream_channel-1.6.8/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/string_scanner-1.0.4/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/term_glyph-1.0.1/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/test-1.3.0/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/typed_data-1.1.6/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/utf-0.9.0+5/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vector_math-2.0.8/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/vm_service_client-0.2.6/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/watcher-0.9.7+10/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/web_socket_channel-1.0.9/lib" />
+      <root url="file://D:/flutter/.pub-cache/hosted/pub.flutter-io.cn/yaml-2.1.15/lib" />
+      <root url="file://D:/flutter/bin/cache/pkg/sky_engine/lib" />
+      <root url="file://D:/flutter/packages/flutter/lib" />
+      <root url="file://D:/flutter/packages/flutter_test/lib" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES />
+  </library>
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\ No newline at end of file
diff --git a/ScreenUtil.dart b/lib/flutter_screenutil.dart
similarity index 65%
rename from ScreenUtil.dart
rename to lib/flutter_screenutil.dart
index 7acfbba3394c1bf2cf3f9959ff73b176d391df61..305bff7307f361312a9ddb878181ed0a3a3f913c 100644
--- a/ScreenUtil.dart
+++ b/lib/flutter_screenutil.dart
@@ -1,55 +1,62 @@
-/*
- * Created by 李卓原 on 2018/9/20.
- * email: zhuoyuan93@gmail.com
- * 设计稿设备尺寸 1080 * 1920 px
- */
-
-import 'dart:ui';
-
-class ScreenUtil {
-  static ScreenUtil instance;
-
-  //设计稿的设备尺寸修改  (请修改成你的设计稿的尺寸)
-  static const designWidth = 1080;
-  static const designHeight = 1920;
-
-  //设备的像素密度
-  static double pixelRatio = window.devicePixelRatio;
-
-  //当前设备宽度 px
-  static double screenWidth = window.physicalSize.width;
-
-  //当前设备高度 px
-  static double screenHeight = window.physicalSize.height;
-
-  //状态栏高度 刘海屏会更高
-  static double StatusBarHeight = window.padding.top;
-
-  //底部安全区距离
-  static double BottomBarHeight = window.padding.bottom;
-
-  //相对于设计稿放大的倍数
-  var scaleWidth = screenWidth / designWidth / pixelRatio;
-  var scaleHeight = screenHeight / designHeight / pixelRatio;
-
-  static ScreenUtil getInstance() {
-    if (instance == null) {
-      instance = new ScreenUtil();
-    }
-    return instance;
-  }
-
-  /**
-   * 根据设计稿的设备宽度适配
-   * 高度也根据这个来做适配可以保证不变形
-   */
-  setWidth(int width) => width * scaleWidth;
-
-  /**
-   * 根据设计稿的设备高度适配
-   * 当发现设计稿中的一屏显示的与当前样式效果不符合时,
-   * 或者形状有差异时,高度适配建议使用此方法
-   * 高度适配主要针对想根据设计稿的一屏展示一样的效果
-   */
-  setHeight(int height) => height * scaleHeight;
-}
+/*
+ * Created by 李卓原 on 2018/9/24.
+ * email: zhuoyuan93@gmail.com
+ * 设计稿设备尺寸默认为 1080 * 1920 px
+ */
+
+import 'dart:ui';
+
+class ScreenUtil {
+  //设计稿的设备尺寸修改  (请修改成你的设计稿的尺寸)
+  int designWidth;
+  int designHeight;
+  static ScreenUtil instance;
+
+  ScreenUtil({int width, int height}) {
+    designWidth = width;
+    designHeight = height;
+  }
+
+  static ScreenUtil getInstance() {
+    if (instance == null) {
+      instance = new ScreenUtil(width: 1080, height: 1920);
+    }
+    return instance;
+  }
+
+  //设备的像素密度
+  static double pixelRatio = window.devicePixelRatio;
+
+  //当前设备宽度 px
+  static double screenWidth = window.physicalSize.width;
+
+  //当前设备高度 px
+  static double screenHeight = window.physicalSize.height;
+
+  //状态栏高度 刘海屏会更高
+  static double statusBarHeight = window.padding.top;
+
+  //底部安全区距离
+  static double bottomBarHeight = window.padding.bottom;
+
+  //相对于设计稿放大的倍数
+  double get scaleWidth =>
+      screenWidth / ScreenUtil.getInstance().designWidth / pixelRatio;
+
+  double get scaleHeight =>
+      screenHeight / ScreenUtil.getInstance().designHeight / pixelRatio;
+
+  /**
+   * 根据设计稿的设备宽度适配
+   * 高度也根据这个来做适配可以保证不变形
+   */
+  setWidth(int width) => width * scaleWidth;
+
+  /**
+   * 根据设计稿的设备高度适配
+   * 当发现设计稿中的一屏显示的与当前样式效果不符合时,
+   * 或者形状有差异时,高度适配建议使用此方法
+   * 高度适配主要针对想根据设计稿的一屏展示一样的效果
+   */
+  setHeight(int height) => height * scaleHeight;
+}