# 5.0.0-nullsafety.9

添加新的初始化方式

+# 5.0.0-nullsafety.9
+- Supplementary documentation, supports two initialization methods
+
 # 5.0.0-nullsafety.8
 # 5.0.0-nullsafety.8
 - merge v4
 - merge v4
 - Add a method to get the screen orientation
 - Add a method to get the screen orientation

@@ -58,13 +58,11 @@ class MyApp extends StatelessWidget {
   }
   }
 }
 }
 ```
 ```
-The second way:
+The second way:Does not support the use of font adaptation in the App
 ```
 ```
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the 360*690
-    ScreenUtil.init(BoxConstraints(maxWidth: 360, maxHeight: 690));
     return MaterialApp(
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       debugShowCheckedModeBanner: false,
       title: 'Flutter_ScreenUtil',
       title: 'Flutter_ScreenUtil',
@@ -75,6 +73,30 @@ class MyApp extends StatelessWidget {
     );
     );
   }
   }
 }
 }
+
+class HomePage extends StatefulWidget {
+  const HomePage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _HomePageState createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  Widget build(BuildContext context) {
+    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the 360*690(dp)
+    ScreenUtil.init(
+        BoxConstraints(
+            maxWidth: MediaQuery.of(context).size.width,
+            maxHeight: MediaQuery.of(context).size.height),
+        designSize: Size(360, 690),
+        allowFontScaling: false,
+        orientation: Orientation.portrait);
+    return Scaffold();
+  }
+}
 ```
 ```
 
 
 ### Use：
 ### Use：

@@ -69,13 +69,11 @@ class MyApp extends StatelessWidget {
   }
   }
 }
 }
 ```
 ```
-方式二:
+方式二: 不支持在App中使用字体适配
 ```
 ```
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //填入设计稿中设备的屏幕尺寸 (例如:360*690) , 单位dp
-    ScreenUtil.init(BoxConstraints(maxWidth: 360, maxHeight: 690));
     return MaterialApp(
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       debugShowCheckedModeBanner: false,
       title: 'Flutter_ScreenUtil',
       title: 'Flutter_ScreenUtil',
@@ -86,6 +84,30 @@ class MyApp extends StatelessWidget {
     );
     );
   }
   }
 }
 }
+
+class HomePage extends StatefulWidget {
+  const HomePage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _HomePageState createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  Widget build(BuildContext context) {
+    //设置尺寸（填写设计中设备的屏幕尺寸）如果设计基于360dp * 690dp的屏幕
+    ScreenUtil.init(
+        BoxConstraints(
+            maxWidth: MediaQuery.of(context).size.width,
+            maxHeight: MediaQuery.of(context).size.height),
+        designSize: Size(360, 690),
+        allowFontScaling: false,
+        orientation: Orientation.portrait);
+    return Scaffold();
+  }
+}
 ```
 ```
 
 
 ### 使用
 ### 使用

@@ -62,13 +62,11 @@ class MyApp extends StatelessWidget {
   }
   }
 }
 }
 ```
 ```
-The second way:
+The second way:Does not support the use of font adaptation in the App
 ```
 ```
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the 360*690
-    ScreenUtil.init(BoxConstraints(maxWidth: 360, maxHeight: 690));
     return MaterialApp(
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       debugShowCheckedModeBanner: false,
       title: 'Flutter_ScreenUtil',
       title: 'Flutter_ScreenUtil',
@@ -79,6 +77,30 @@ class MyApp extends StatelessWidget {
     );
     );
   }
   }
 }
 }
+
+class HomePage extends StatefulWidget {
+  const HomePage({Key key, this.title}) : super(key: key);
+
+  final String title;
+
+  @override
+  _HomePageState createState() => _HomePageState();
+}
+
+class _HomePageState extends State<HomePage> {
+  @override
+  Widget build(BuildContext context) {
+    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the 360*690(dp)
+    ScreenUtil.init(
+        BoxConstraints(
+            maxWidth: MediaQuery.of(context).size.width,
+            maxHeight: MediaQuery.of(context).size.height),
+        designSize: Size(360, 690),
+        allowFontScaling: false,
+        orientation: Orientation.portrait);
+    return Scaffold();
+  }
+}
 ```
 ```
 
 
 ### Uso：
 ### Uso：

@@ -6,8 +6,6 @@ void main() => runApp(MyApp());
 class MyApp extends StatelessWidget {
 class MyApp extends StatelessWidget {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
-    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the iPhone6 360*690
-    ScreenUtil.init(BoxConstraints(maxWidth: 360, maxHeight: 690));
     return MaterialApp(
     return MaterialApp(
       debugShowCheckedModeBanner: false,
       debugShowCheckedModeBanner: false,
       title: 'Flutter_ScreenUtil',
       title: 'Flutter_ScreenUtil',
@@ -31,6 +29,14 @@ class HomePage extends StatefulWidget {
 class _HomePageState extends State<HomePage> {
 class _HomePageState extends State<HomePage> {
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
+    //Set the fit size (fill in the screen size of the device in the design) If the design is based on the size of the  360*690
+    ScreenUtil.init(
+        BoxConstraints(
+            maxWidth: MediaQuery.of(context).size.width,
+            maxHeight: MediaQuery.of(context).size.height),
+        designSize: Size(360, 690),
+        allowFontScaling: false,
+        orientation: Orientation.portrait);
     printScreenInformation();
     printScreenInformation();
     return Scaffold(
     return Scaffold(
       appBar: AppBar(
       appBar: AppBar(

 name: flutter_screenutil
 name: flutter_screenutil
 description: A flutter plugin for adapting screen and font size.Guaranteed to look good on different models
 description: A flutter plugin for adapting screen and font size.Guaranteed to look good on different models
-version: 5.0.0-nullsafety.8
+version: 5.0.0-nullsafety.9
 homepage: https://github.com/OpenFlutter/flutter_screenutil
 homepage: https://github.com/OpenFlutter/flutter_screenutil
 
 
 environment:
 environment: