added Vertical and horizontal spacing for lists

 #!/bin/sh
 # This is a generated file; do not edit or check into version control.
-export "FLUTTER_ROOT=/Users/lizhuoyuan/Development/flutter"
-export "FLUTTER_APPLICATION_PATH=/Users/lizhuoyuan/Development/Project/flutter_screenutil/example"
+export "FLUTTER_ROOT=C:\dev\flutter"
+export "FLUTTER_APPLICATION_PATH=C:\Users\kagee\Documents\flutter_screenutil\example"
 export "COCOAPODS_PARALLEL_CODE_SIGN=true"
-export "FLUTTER_TARGET=lib/main.dart"
+export "FLUTTER_TARGET=lib\main.dart"
 export "FLUTTER_BUILD_DIR=build"
-export "SYMROOT=${SOURCE_ROOT}/../build/ios"
 export "FLUTTER_BUILD_NAME=1.0.0"
 export "FLUTTER_BUILD_NUMBER=1"
 export "DART_OBFUSCATION=false"

@@ -109,4 +109,12 @@ class ScreenUtil {
   ///Font size adaptation method
   ///- [fontSize] The size of the font on the UI design, in dp.
   double setSp(num fontSize) => fontSize * scaleText;
+
+  Widget setVerticalSpacing(num height) => SizedBox(
+        height: height * scaleHeight,
+      );
+
+  Widget setHorizontalSpacing(num width) => SizedBox(
+        height: width * scaleHeight,
+      );
 }

@@ -29,4 +29,10 @@ extension SizeExtension on num {
   ///屏幕高度的倍数
   ///Multiple of screen height
   double get sh => ScreenUtil().screenHeight * this;
+
+  ///[ScreenUtil.setWidth]
+  Widget get verticalSpace => ScreenUtil().setVerticalSpacing(this);
+
+  ///[ScreenUtil.setHeight]
+  Widget get horizontalSpace => ScreenUtil().setHorizontalSpacing(this);
 }