This package helps the user to get width, height details of device, widgets.

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dependencies:
  flutter_size: ^1.0.0

Features

Cross platform: mobile, desktop, browser
Simple, powerful, & Easy to use
NO native dependencies
Time Saving & improve productivity

Usage

Methods

context.width(double size)

this method gives width to the widget, equivalent to (device_width * size).

context.height(double heightSize)

this method gives height to the widget, equivalent to (device_height * size).


class CustomWidthAndHeight extends StatelessWidget {
  const CustomWidthAndHeight({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return SafeArea(child: Scaffold(
      body: Container(
        color: Colors.blueGrey,
        width: context.width(0.4),
        height: context.height(0.3),
        child: const Text("Hello World !"),
      ),
    ));
  }
}

context.deviceHeight

this method gives height of the device.

context.deviceWidth

this method gives width of the device.


class DeviceWidthAndHeight extends StatelessWidget {
  const DeviceWidthAndHeight({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return SafeArea(child: Scaffold(
      body: Container(
        color: Colors.red,
        width: context.deviceWidth,
        height: context.deviceHeight,
        child: const Text("Hello World !"),
      ),
    ));
  }
}

context.deviceOrientation

this method gives the current orientation of the device.

context.totalHeight

returns device height excluding appBar height and status bar height.

context.platformBrightness

this method gives platform brightness of the device.


class DeviceOrientationAndDeviceHeightAndPlatformBrightness extends StatelessWidget {
  const DeviceOrientationAndDeviceHeightAndPlatformBrightness({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return SafeArea(child: Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            Text("Device Orientation is : ${context.deviceOrientation}"),
            const SizedBox(height: 40,),
            Text("Device Height excluding appBar height and status bar height is : ${context.totalHeight}"),
            const SizedBox(height: 40,),
            Text("Platform Brightness is : ${context.platformBrightness}"),
          ],
        ),
      ),
    ));
  }
}

(double height).verticalSpaceBetweenWidgets

returns SizedBox with height as the provided value.

(double width).horizontalSpaceBetweenWidgets

returns SizedBox with width as the provided value.


class CustomSpaceBetweenWidgets extends StatelessWidget {
  const CustomSpaceBetweenWidgets({Key? key}) : super(key: key);
  
  @override
  Widget build(BuildContext context) {
    return SafeArea(child: Scaffold(
      body: Column(
        children: [
          const Text('Hello World'),
          40.verticalSpaceBetweenWidgets,
          Row(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              const Text('Hello'),
              45.horizontalSpaceBetweenWidgets,
              const Text('World !'),
            ],
          ),
        ],
      ),
    ));
  }
}

layoutBody class

returns a widget with given constraints, default will be device height and device width.


import 'package:flutter_size/get_size.dart';
class ExampleScreen extends StatefulWidget {
  const ExampleScreen({Key? key}) : super(key: key);

  @override
  State<ExampleScreen> createState() => _ExampleScreenState();
}

class _ExampleScreenState extends State<ExampleScreen> {
  @override
  Widget build(BuildContext context) {
    return const Scaffold(
        body: Center(
          child: LayoutBody(
            layoutBody: Text("Hlo"),
            width: 0.2,
            height: 0.4,
          ),
        ));
  }
}