DART

flutter get width of screen

double height = MediaQuery.of(context).size.height;
double width = MediaQuery.of(context).size.width;

get screen height flutter

double height = MediaQuery.of(context).size.height;

get screen size flutter

//In logical pixels
var width = MediaQuery.of(context).size.width;
var height = MediaQuery.of(context).size.height;

var padding = MediaQuery.of(context).padding;
var safeHeight = height - padding.top - padding.bottom;

how to give width based on screen size flutter

import 'package:flutter_screenutil/flutter_screenutil.dart';

flutter get height of screen

MediaQuery.of(context).size.height -    // total height 
  kToolbarHeight -                      // top AppBar height
  MediaQuery.of(context).padding.top -  // top padding
  kBottomNavigationBarHeight            // BottomNavigationBar height

flutter: get height of Screen device

// All height of screen
double screenHeight = MediaQuery.of(context).size.height

// height of screen only
double screenHeight = MediaQuery.of(context).size.height -
    MediaQuery.of(context).padding.top -
    kToolbarHeight -
    kBottomNavigationBarHeight;

how to give width based on screen size flutter

dependencies:
  flutter:
    sdk: flutter
  # add flutter_ScreenUtil
  flutter_screenutil: ^0.4.2