Creating a comprehensive unit converter app in Flutter can be a great project. Here's a basic outline and example code to get you started with a unit converter app that can handle various metrics and units.

Features

1. Conversion Types: Support for different types of units like length, weight, temperature, volume, etc.
2. Unit Selection: Dropdown menus or lists to select the units for conversion.
3. Input Field: A text field to enter the value to be converted.
4. Conversion Results: Display the result in various units.
5. Responsive Design: Ensure the app works well on different screen sizes.

6. Example Code

   Here's a simplified version of a unit converter app in Flutter:
   1. Dependencies: Add the following dependencies to your pubspec.yaml file:

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