'Is this a good approach for developing in Flutter?

I am new to Flutter and I am trying to create a few projects as an initiation exercice. For the context, I am creating android apps. Now, I don't like giving my widgets exact values in Height or width and prefer working with percentages. The question is: Can I continue seriously developing with this method even with complex apps or should I actually tackle MediaQuery from the start since I would be working with it anyway and this approach is totally not realistic? Can percentages alone make a good app? Can they at least work on simple ones? Or whether simple or complex, the code relating to responsiveness addressing screen sizes directly is a necessity. Thank you for your reply.



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source