import 'package:flutter/cupertino.dart'; class SizeConfig { static double _blockWidth = 0; static double _blockHeight = 0; static double screenWidth; static double screenHeight; static double textMultiplier; static double imageSizeMultiplier; static double heightMultiplier; static double widthMultiplier; static bool isPortrait = true; static bool isMobilePortrait = false; void init(BoxConstraints constraints, Orientation orientation) { if (orientation == Orientation.portrait) { screenHeight = constraints.maxHeight; screenWidth = constraints.maxWidth; isPortrait = true; if (screenWidth < 450) { isMobilePortrait = true; } } else { screenHeight = constraints.maxWidth; screenWidth = constraints.maxHeight; isPortrait = false; isMobilePortrait = false; } _blockWidth = screenWidth / 100; _blockHeight = screenHeight / 100; textMultiplier = _blockHeight; imageSizeMultiplier = _blockWidth; heightMultiplier = _blockHeight; widthMultiplier = _blockWidth; print('textMultiplier $textMultiplier'); print('imageSizeMultiplier $imageSizeMultiplier'); print('heightMultiplier$heightMultiplier'); print('widthMultiplier $widthMultiplier'); print('isPortrait $isPortrait'); print('isMobilePortrait $isMobilePortrait'); } }