Widget：https://flutter.io/docs/development/ui/widgets Stack：https://docs.flutter.io/flutter/widgets/Stack-class.html import 'package:flutter/mat
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Widget：https://flutter.io/docs/development/ui/widgets Wrap：https://docs.flutter.io/flutter/widgets/Wrap-class.html import 'package:flutter/mater
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Widget：https://flutter.io/docs/development/ui/widgets ListTile：https://docs.flutter.io/flutter/material/ListTile-class.html import 'package:flut
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Widget：https://flutter.io/docs/development/ui/widgets CircleAvatar：https://docs.flutter.io/flutter/material/CircleAvatar-class.html import 'pack
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Widget：https://flutter.io/docs/development/ui/widgets LinearProgressIndicator：https://docs.flutter.io/flutter/material/LinearProgressIndicator-class.h
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Widget：https://flutter.io/docs/development/ui/widgets Chip：https://docs.flutter.io/flutter/material/Chip-class.html InputChip：https://docs.flutter.io/
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Widget：https://flutter.io/docs/development/ui/widgets Tooltip：https://docs.flutter.io/flutter/material/Tooltip-class.html import 'package
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SnackBar是用户操作后，显示提示信息的一个控件，类似Toast，会自动隐藏。SnackBar还可以添加操作按钮。SnackBar是通过Scaffold的showSnackBar方法来显示的。 Widget：https://flutter.io/docs/development/ui/widge
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Widget：https://flutter.io/docs/development/ui/widgets SimpleDialog：https://docs.flutter.io/flutter/material/SimpleDialog-class.html AlertDialog：https:
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Widget：https://flutter.io/docs/development/ui/widgets FloatingActionButton：https://docs.flutter.io/flutter/material/FloatingActionButton-class.html
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Widget：https://flutter.io/docs/development/ui/widgets Slider：https://docs.flutter.io/flutter/material/Slider-class.html import 'package:f
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Widget：https://flutter.io/docs/development/ui/widgets Switch：https://docs.flutter.io/flutter/material/Switch-class.html import 'package:flutter/
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Widget：https://flutter.io/docs/development/ui/widgets Radio：https://docs.flutter.io/flutter/material/Radio-class.html import 'package:flu
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Widget：https://flutter.io/docs/development/ui/widgets Checkbox：https://docs.flutter.io/flutter/material/Checkbox-class.html import 'packa
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Widget：https://flutter.io/docs/development/ui/widgets TextField：https://docs.flutter.io/flutter/material/TextField-class.html import 'pac
2023-03-16