use export

example/lib/example_picker.dart

@@ -70,6 +70,7 @@ class _ExamplePickerState extends State<ExamplePicker> {
               title: '图片选择器',
               onPressed: () async {
                 File file = await camView(context, title: '图片选择器');
+                print(file.lengthSync());
               },
             ),
           ),

example/pubspec.yaml

@@ -35,44 +35,7 @@ dependencies:
 
 dev_dependencies:
   flutter_test:
-    sdk: flutter
-
-# For information on the generic Dart part of this file, see the
-# following page: https://dart.dev/tools/pub/pubspec
-
-# The following section is specific to Flutter.
 flutter:
-  # The following line ensures that the Material Icons font is
-  # included with your application, so that you can use the icons in
-  # the material Icons class.
   uses-material-design: true
-
-  # To add assets to your application, add an assets section, like this:
-  # assets:
-  #   - images/a_dot_burr.jpeg
-  #   - images/a_dot_ham.jpeg
   assets:
     - assets/logo.webp
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
-  # For details regarding adding assets from package dependencies, see
-  # https://flutter.dev/assets-and-images/#from-packages
-  # To add custom fonts to your application, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts from package dependencies,
-  # see https://flutter.dev/custom-fonts/#from-packages

lib/ansu_ui.dart

@@ -1,76 +1,64 @@
 library ansu_ui;
 
-import 'dart:io';
-import 'dart:ui';
-
-import 'package:ansu_ui/bar/as_tab_indicator.dart';
-import 'package:ansu_ui/painters/as_numeric_painter.dart';
-import 'package:ansu_ui/utils/city_util.dart';
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter_screenutil/flutter_screenutil.dart';
-import 'package:flutter_easyrefresh/easy_refresh.dart';
-import 'package:image_picker/image_picker.dart';
-import 'package:bot_toast/bot_toast.dart';
 export 'package:flutter_screenutil/flutter_screenutil.dart';
 export 'package:flutter_easyrefresh/easy_refresh.dart';
 export 'package:bot_toast/bot_toast.dart';
 
 //buttons
-part 'buttons/as_button.dart';
+export 'buttons/as_button.dart';
-part 'buttons/as_longbutton.dart';
+export 'buttons/as_longbutton.dart';
-part 'buttons/as_back_button.dart';
+export 'buttons/as_back_button.dart';
-part 'buttons/as_numeric_button.dart';
+export 'buttons/as_numeric_button.dart';
-part 'buttons/as_bottom_button.dart';
+export 'buttons/as_bottom_button.dart';
-part 'buttons/as_gradientbutton.dart';
+export 'buttons/as_gradientbutton.dart';
-part 'buttons/as_radio_button.dart';
+export 'buttons/as_radio_button.dart';
 
 //scaffold
-part 'scaffold/as_scaffold.dart';
+export 'scaffold/as_scaffold.dart';
 
-part 'styles/as_colors.dart';
+export 'styles/as_colors.dart';
 
-part 'bar/as_tabbar.dart';
+export 'bar/as_tabbar.dart';
-part 'bar/as_navigation_bar.dart';
+export 'bar/as_navigation_bar.dart';
-part 'bar/as_navigation_item.dart';
+export 'bar/as_navigation_item.dart';
 
-part 'drawer/as_drawer.dart';
+export 'drawer/as_drawer.dart';
 
-part 'toast/as_toast.dart';
+export 'toast/as_toast.dart';
 
-part 'pickers/as_date_picker.dart';
+export 'pickers/as_date_picker.dart';
-part 'pickers/as_picker_box.dart';
+export 'pickers/as_picker_box.dart';
-part 'pickers/as_city_picker.dart';
+export 'pickers/as_city_picker.dart';
-part 'pickers/as_show_city_picker.dart';
+export 'pickers/as_show_city_picker.dart';
-part 'pickers/as_two_date_picker.dart';
+export 'pickers/as_two_date_picker.dart';
-part 'pickers/as_date_range_picker_part.dart';
+export 'pickers/as_date_range_picker_part.dart';
 
-part 'dialog/as_dialog.dart';
+export 'dialog/as_dialog.dart';
-part 'dialog/as_dialog_button.dart';
+export 'dialog/as_dialog_button.dart';
-part 'dialog/as_delete_dialog.dart';
+export 'dialog/as_delete_dialog.dart';
 
-part 'list_tile/as_list_tile.dart';
+export 'list_tile/as_list_tile.dart';
-part 'list_tile/as_option_tile.dart';
+export 'list_tile/as_option_tile.dart';
-part 'list_tile/as_edit_tile.dart';
+export 'list_tile/as_edit_tile.dart';
-part 'list_tile/as_option_tile_item.dart';
+export 'list_tile/as_option_tile_item.dart';
-part 'list_tile/as_vertical_tile_item.dart';
+export 'list_tile/as_vertical_tile_item.dart';
 
-part 'refresh/as_refresh.dart';
+export 'refresh/as_refresh.dart';
 
-part 'box/as_check_box.dart';
+export 'box/as_check_box.dart';
 
-part 'tag/as_tag.dart';
+export 'tag/as_tag.dart';
-part 'divider/as_divider.dart';
+export 'divider/as_divider.dart';
-part 'text_field/as_search_text_field.dart';
+export 'text_field/as_search_text_field.dart';
 
-part 'utils/screen_adapter.dart';
+export 'utils/screen_adapter.dart';
-part 'utils/camera_util.dart';
+export 'utils/camera_util.dart';
-part 'utils/camera_view.dart';
+export 'utils/camera_view.dart';
-part 'utils/photo_viewer.dart';
+export 'utils/photo_viewer.dart';
 
-part 'extension/num_extension.dart';
+export 'extension/num_extension.dart';
-part 'extension/list_extension.dart';
+export 'extension/list_extension.dart';
-part 'extension/widget_extension.dart';
+export 'extension/widget_extension.dart';
-part 'extension/string_extension.dart';
+export 'extension/string_extension.dart';
-part 'extension/text_style_extension.dart';
+export 'extension/text_style_extension.dart';
-part 'extension/text_extension.dart';
+export 'extension/text_extension.dart';

lib/bar/as_navigation_bar.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
 
 class ASNavigationBar extends StatefulWidget {
   final List<BottomNavigationBarItem> items;

lib/bar/as_navigation_item.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 BottomNavigationBarItem asNavigationItem(
     String path1, String path2, String title) {

lib/bar/as_tabbar.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:ansu_ui/bar/as_tab_indicator.dart';
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
 
 /// ## 安速Tabbar
 ///

lib/box/as_check_box.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 class ASCheckBox extends StatefulWidget {
   final bool value;

lib/buttons/as_back_button.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
 
 ///安速返回按钮
 ///

lib/buttons/as_bottom_button.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASBottomButton extends StatefulWidget {
   ///动态组件，可以是字符或组件

lib/buttons/as_button.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 ///安速按钮
 class ASButton extends StatefulWidget {
   ///按钮颜色
@@ -158,7 +161,8 @@ class _ASButtonState extends State<ASButton> {
           ? Text(widget.title,
               style: widget.textStyle ?? TextStyle(fontSize: 13.sp))
           : widget.title,
-      padding: widget.padding ?? EdgeInsets.symmetric(vertical: 6.w,horizontal: 12.w),
+      padding: widget.padding ??
+          EdgeInsets.symmetric(vertical: 6.w, horizontal: 12.w),
       shape: RoundedRectangleBorder(
           side: widget.outline
               ? BorderSide(color: widget.outlineColor, width: 0.5.w)

lib/buttons/as_gradientbutton.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASGradientButton extends StatefulWidget {
   ///按钮文字

lib/buttons/as_longbutton.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASLongButton extends StatefulWidget {
   ///按钮文字

lib/buttons/as_numeric_button.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:ansu_ui/painters/as_numeric_painter.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 ///## 数量选择组件
 class ASNumericButton extends StatefulWidget {

lib/buttons/as_radio_button.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
 
 class ASRadioButton<T> extends StatefulWidget {
   /// 选中的值

lib/dialog/as_delete_dialog.dart

@@ -1,4 +1,9 @@
-part of ansu_ui;
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
+import 'package:ansu_ui/dialog/as_dialog_button.dart';
 
 class ASDeleteDialog extends StatelessWidget {
   ///标题
@@ -73,7 +78,6 @@ class ASDeleteDialog extends StatelessWidget {
                                   )
                                 : this.boyd,
                       ],
-                      
                     ),
                   ),
                   this.button ??
@@ -81,7 +85,7 @@ class ASDeleteDialog extends StatelessWidget {
                         title: '确认删除',
                         onPressed: this.onpressed,
                       ),
-                      20.hb
+                  20.hb,
                 ],
               ),
             ],

lib/dialog/as_dialog.dart

@@ -1,4 +1,9 @@
-part of ansu_ui;
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
+
 
 class ASDialog extends StatefulWidget {
   final bool close;

lib/dialog/as_dialog_button.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/buttons/as_longbutton.dart';
 
 class ASDialogButton extends StatelessWidget {
   final String title;

lib/divider/as_divider.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 ///安速水平分割线
 class ASDivider extends StatelessWidget {

lib/drawer/as_drawer.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/utils/screen_adapter.dart';
 
 ///安速抽屉
 class ASDrawer extends StatefulWidget {

lib/extension/list_extension.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
 
 extension SeparateExt on List<Widget> {
   List<Widget> sepWidget({Widget separate}) {
@@ -9,5 +10,4 @@ extension SeparateExt on List<Widget> {
         return separate ?? 10.wb;
     });
   }
-
 }

lib/extension/num_extension.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 extension NumExt on num {
   ///获取宽 SizedBox

lib/extension/string_extension.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/toast/as_toast.dart';
 
 extension PhoneExt on String {
   List get _parsePhone {

lib/extension/text_extension.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/extension/text_style_extension.dart';
 
 extension TextExtension on Text {
   Text get bold => Text(

lib/extension/text_style_extension.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 extension TextStyleExtension on TextStyle {
   ///Bold text

lib/extension/widget_extension.dart

@@ -1,4 +1,4 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
 
 extension WidgetExt on Widget {
   Widget get expanded => Expanded(child: this);

lib/list_tile/as_edit_tile.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
 
 class ASEditTile extends StatefulWidget {
   final Widget title;

lib/list_tile/as_list_tile.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASListTile extends StatefulWidget {
   ///主标题

lib/list_tile/as_option_tile.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/divider/as_divider.dart';
 
 ///菜单按钮Tile
 class ASOptionTile extends StatelessWidget {

lib/list_tile/as_option_tile_item.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
+
 
 class ASOptionTileItem extends StatelessWidget {
   final Widget leading;

lib/list_tile/as_vertical_tile_item.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/divider/as_divider.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
 
 class ASVerticalTileItem extends StatelessWidget {
   ///标题

lib/pickers/as_city_picker.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:ansu_ui/utils/city_util.dart';
+import 'package:ansu_ui/pickers/as_picker_box.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 class ASCityPicker extends StatefulWidget {
   ASCityPicker({Key key}) : super(key: key);

lib/pickers/as_date_picker.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:ansu_ui/pickers/as_picker_box.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 //时间选择器内部实现
 class _ASDatePickerWidget extends StatefulWidget {

lib/pickers/as_date_range_picker_part.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/pickers/as_two_date_picker.dart';
 
 class RangeDate {
   DateTime start;

lib/pickers/as_picker_box.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/divider/as_divider.dart';
+
 
 class ASPickerBox extends StatelessWidget {
   final VoidCallback onPressed;

lib/pickers/as_show_city_picker.dart

@@ -1,4 +1,6 @@
-part of ansu_ui;
+import 'package:ansu_ui/utils/city_util.dart';
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/pickers/as_city_picker.dart';
 
 Future<CityModel> showCityPicker(BuildContext context,
     {String initCode}) async {

lib/pickers/as_two_date_picker.dart

@@ -1,4 +1,14 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/extension/string_extension.dart';
+import 'package:ansu_ui/extension/widget_extension.dart';
+import 'package:ansu_ui/extension/text_extension.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
+import 'package:ansu_ui/extension/text_style_extension.dart';
+import 'package:ansu_ui/pickers/as_date_range_picker_part.dart';
+import 'package:ansu_ui/buttons/as_longbutton.dart';
+
 
 class AS2DatePicker extends StatefulWidget {
   final bool isAnHour;

lib/refresh/as_refresh.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_easyrefresh/easy_refresh.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASRefresh extends StatefulWidget {
   final Widget child;

lib/scaffold/as_scaffold.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/buttons/as_back_button.dart';
+
 
 ///ASScaffold
 ///

lib/styles/as_colors.dart

@@ -1,4 +1,4 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
 
 ///主要暗色
 const Color kDarkColor = Color(0xFF333333);

lib/tag/as_tag.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 class ASTag extends StatefulWidget {
   ///宽度
@@ -113,7 +116,8 @@ class _ASTagState extends State<ASTag> {
   @override
   Widget build(BuildContext context) {
     return Container(
-      padding: widget.padding ?? EdgeInsets.symmetric(horizontal: 6.w,vertical: 2.w),
+      padding: widget.padding ??
+          EdgeInsets.symmetric(horizontal: 6.w, vertical: 2.w),
       width: widget.width,
       height: widget.height,
       decoration: BoxDecoration(

lib/text_field/as_search_text_field.dart

@@ -1,4 +1,7 @@
-part of ansu_ui;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+
 
 ///TextFiled
 class ASSearchTextField extends StatefulWidget implements PreferredSizeWidget {

lib/toast/as_toast.dart

@@ -1,4 +1,5 @@
-part of ansu_ui;
+
+import 'package:bot_toast/bot_toast.dart';
 
 class ASToast {
   static show(String text) {

lib/utils/camera_util.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:ansu_ui/utils/camera_view.dart';
 
 ///获取相机文件
 Future<File> camFile({double maxHeight = 3000, double maxWidth = 3000}) async {

lib/utils/camera_view.dart

@@ -1,4 +1,17 @@
-part of ansu_ui;
+import 'dart:io';
+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:ansu_ui/styles/as_colors.dart';
+import 'package:ansu_ui/scaffold/as_scaffold.dart';
+import 'package:ansu_ui/extension/string_extension.dart';
+import 'package:ansu_ui/extension/text_extension.dart';
+import 'package:ansu_ui/utils/photo_viewer.dart';
+import 'package:ansu_ui/utils/camera_util.dart';
+import 'package:ansu_ui/extension/list_extension.dart';
+import 'package:ansu_ui/divider/as_divider.dart';
+
 
 class CameraView extends StatefulWidget {
   final File file;

lib/utils/photo_viewer.dart

@@ -1,4 +1,8 @@
-part of ansu_ui;
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:ansu_ui/extension/num_extension.dart';
+
 
 class PhotoViewer extends StatefulWidget {
   final File file;

lib/utils/screen_adapter.dart

@@ -1,4 +1,4 @@
-part of ansu_ui;
+import 'package:flutter_screenutil/flutter_screenutil.dart';
 
 double statusBarHeight = ScreenUtil().statusBarHeight;
 double screenHeight = ScreenUtil().screenHeight;

pubspec.yaml

@@ -19,38 +19,4 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-
-# For information on the generic Dart part of this file, see the
-# following page: https://dart.dev/tools/pub/pubspec
-
-# The following section is specific to Flutter.
 flutter:
-  # To add assets to your package, add an assets section, like this:
-  # assets:
-  #   - images/a_dot_burr.jpeg
-  #   - images/a_dot_ham.jpeg
-  #
-  # For details regarding assets in packages, see
-  # https://flutter.dev/assets-and-images/#from-packages
-  #
-  # An image asset can refer to one or more resolution-specific "variants", see
-  # https://flutter.dev/assets-and-images/#resolution-aware.
-  # To add custom fonts to your package, add a fonts section here,
-  # in this "flutter" section. Each entry in this list should have a
-  # "family" key with the font family name, and a "fonts" key with a
-  # list giving the asset and other descriptors for the font. For
-  # example:
-  # fonts:
-  #   - family: Schyler
-  #     fonts:
-  #       - asset: fonts/Schyler-Regular.ttf
-  #       - asset: fonts/Schyler-Italic.ttf
-  #         style: italic
-  #   - family: Trajan Pro
-  #     fonts:
-  #       - asset: fonts/TrajanPro.ttf
-  #       - asset: fonts/TrajanPro_Bold.ttf
-  #         weight: 700
-  #
-  # For details regarding fonts in packages, see
-  # https://flutter.dev/custom-fonts/#from-packages