上篇关于Flutter的文章总结了下标签+导航的项目模式的搭建，具体的有需要的可以去看看Flutter分类的文章，这篇文章我们简单的总结一下关于Flutter本地文件引用以及简单的自定义List的使用，我们先总结本地图片的引用。今天这篇文章的具体的UI效果如下：
引用本地图片
我们没有使用到的我们暂时先不提，等后面慢慢补充进去，比如说网络图片的显示等等，我们现总结一下关于本地图片的使用，具体的我们需要下面几步：
1、创建文件导入资源
Flutter的文件资源需要我们创建一个文件去管理，我们可以定义一个images的文件，当然这个名字不是固定的但需要留意下它的文件等级，它里面还可以装别的其他资源文件，你要叫Resource也可以的。然后不管是做Android的还是iOS的都知道我们的图片资源是分2x和3x的，所以我们在你创建的文件下面再创建一个2.0x和3.0x的文件夹分别存放相应倍数的图片资源。如下图：
2、不是说直接导入就能直接使用的，还需要处理一下 pubspec.yaml文件，具体的改动如下面所示：
# 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 # 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 #### 图片资源 assets: - images/icon_header.png - images/icon_heath.png - images/icon_village.png - images/mine_train.png