設計稿：
第一週Youtube影片位置：
https://www.youtube.com/watch?v=7X9Dq1sBBsI&t=55s
常用指令：
用於產生程式
dart run build_runner buildmason make model --jsonFile ./posts.json
註記：Android虛擬機連線localhost問題，可以將api連結更改為10.0.2.2。
If you are using an Android emulator then localhost on the emulator is not 127.0.0.0 it is 10.0.2.2, so, on Android emulator you need to write https://10.0.2.2:8000, the https://127.0.0.1:8000 will not work on real device too. because localhost means something different on real device.
https://github.com/FlutterGen/flutter_gen/blob/main/packages/core/lib/settings/config_default.dart