- flutter_screenutil: ^0.5.3 #屏幕适配
- cached_network_image: ^2.0.0-rc 图片展示
- fluttertoast: ^3.0.3 toast
- dev_dependencies json_model: ^0.0.2 json_serializable: ^2.0.0 json格式化
- flutter packages pub run json_model 生成json对象
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<uses-sdk android:minSdkVersion="21" tools:overrideLibrary="net.touchcapture.qr.flutterqr,com.google.zxing.client.android"/>