Flutter_sizer: Responsive Sizer Helps Implement Are Responsive Layout

Flutter Sizer

Flutter Sizer helps implement a responsive layout by providing helper widgets and extensions

Responsive Image

Installation

Add flutter_sizer to pubspec.yaml

dependencies:
  flutter_sizer: ^1.0.4

Parameters

Adaptive.h() - Returns a calculated height based on the device
Adaptive.w() - Returns a calculated width based on the device
Adaptive.sp() - Returns a calculated sp based on the device (deprecated)
Adaptive.dp() - Returns a calculated dp based on the device
.h - Returns a calculated height based on the device
.w - Returns a calculated width based on the device
.sp - Returns a calculated sp based on the device (deprecated)
.dp - Returns a calculated dp based on the device
Device.boxConstraints - Returns the Device's BoxConstraints
Device.orientation - Returns the Screen Orientation (portrait or landscape)
Device.screenType - Returns the Screen Type (mobile or tablet)
Device.devicePixelRatio - Returns the devicePixel Ratio or (1.0)

Usage

Import the Package

import 'package:flutter_sizer/flutter_sizer.dart';

Wrap MaterialApp with FlutterSizer widget

 FlutterSizer(
      builder: (context, orientation, screenType) {
        return MaterialApp();
      }
 )

Widget Size

Container(
  width: Adaptive.w(20),    // This will take 20% of the screen's width
  height: 30.5.h     // This will take 30.5% of the screen's height
)

Orientation

If you want to support both portrait and landscape orientations

Device.orientation == Orientation.portrait
  ? Container(   // Widget for Portrait
      width: 100.w,
      height: 20.5.h,
   )
  : Container(   // Widget for Landscape
      width: 100.w,
      height: 12.5.h,
   )

DeviceType

If you want the same layout to look different in tablet and mobile, use the Device.screenType method:

Device.screenType == ScreenType.tablet
  ? Container(   // Widget for Tablet
      width: 100.w,
      height: 20.5.h,
   )
  : Container(   // Widget for Mobile
      width: 100.w,
      height: 12.5.h,
   )

Take Note

You need to import flutter_sizer package in order to access number.h, number.w, and number.dp

Auto import in VSCode and Android Studio doesn't work for dart extension methods. Typing 10.h would not bring up auto import suggestion for this package

One workaround is to type Device so that the auto import suggestion would show up:

import 'package:flutter_sizer/flutter_sizer.dart';

Installing

Use this package as a library

Depend on it

Run this command:

With Flutter:

 $ flutter pub add flutter_sizer

This will add a line like this to your package's pubspec.yaml (and run an implicit flutter pub get):

dependencies:
  flutter_sizer: ^1.0.5

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

Import it

Now in your Dart code, you can use:

import 'package:flutter_sizer/flutter_sizer.dart';

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_sizer/flutter_sizer.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return FlutterSizer(
      builder: (context, orientation, screenType) {
        return MaterialApp(
            title: 'Flutter Sizer Example',
            theme: ThemeData(
              primarySwatch: Colors.blue,
            ),
            home: Home());
      },
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
          child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          Container(
            height: Adaptive.h(12.5), // or 12.5.h
            width: 50.w, // or Adaptive.w(50)
            color: Colors.black,
          ),
          Text(
            "Resolution is -> ${100.0.w}x${100.0.h}",
          ),
          Text(
            "This text is responsive 12dp -> ${12.0.dp}",
            style: TextStyle(fontSize: 12.0.dp), // or Adaptive.sp(12)
          ),
          Text(
            "This text is responsive 24dp -> ${24.0.dp}",
            style: TextStyle(fontSize: 24.0.dp), // or Adaptive.sp(12)
          ),
          Device.orientation == Orientation.portrait
              ? Text("My Orientation is Portrait")
              : Text("My Orientation is Landscape"),
          Device.screenType == ScreenType.tablet
              ? Text("My Screen's Type is a Tablet")
              : Text("My Screen's Type is a Phone")
        ],
      )),
    );
  }
}

Community Support

If you have any suggestions or issues, feel free to open an issue

If you would like to contribute, feel free to create a PR

Author: Radvansky-tomas
Source Code: https://github.com/radvansky-tomas/flutter_sizer
License: MIT license

#flutter #dart #size

How To Create Tabs in Less Than 12 Minutes Using HTML CSS

In this video, We have created a Tab design in HTML and CSS without using JavaScript. I have also provided HTML and CSS code on my website, you can visit my website by clicking given link.

Subscribe: https://www.youtube.com/@CodingLabYT/featured

Source Code :

HTML :

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="UTF-8">
    <!--<title> CSS Vertical Tabs </title>-->
    <link rel="stylesheet" href="style.css">
    <!-- Fontawesome CDN Link -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.2/css/all.min.css"/>
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
   </head>
<body>
  <div class="container">
    <div class="topic">CSS Vertical Tabs.</div>
    <div class="content">
      <input type="radio" name="slider" checked id="home">
      <input type="radio" name="slider" id="blog">
      <input type="radio" name="slider" id="help">
      <input type="radio" name="slider" id="code">
      <input type="radio" name="slider" id="about">
      <div class="list">
        <label for="home" class="home">
        <i class="fas fa-home"></i>
        <span class="title">Home</span>
      </label>
      <label for="blog" class="blog">
        <span class="icon"><i class="fas fa-blog"></i></span>
        <span class="title">Blog</span>
      </label>
      <label for="help" class="help">
        <span class="icon"><i class="far fa-envelope"></i></span>
        <span class="title">Help</span>
      </label>
      <label for="code" class="code">
        <span class="icon"><i class="fas fa-code"></i></span>
        <span class="title">Code</span>
      </label>
      <label for="about" class="about">
        <span class="icon"><i class="far fa-user"></i></span>
        <span class="title">About</span>
      </label>
      <div class="slider"></div>
    </div>
      <div class="text-content">
        <div class="home text">
          <div class="title">Home Content</div>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quasi excepturi ducimus sequi dignissimos expedita tempore omnis quos cum, possimus, aspernatur esse nihil commodi est maiores dolorum rem iusto atque, beatae voluptas sit eligendi architecto dolorem temporibus. Non magnam ipsam, voluptas quasi nam dicta ut. Ad corrupti aliquid obcaecati alias, nemo veritatis porro nisi eius sequi dignissimos ea repellendus quibusdam minima ipsum animi quae, libero quisquam a! Laudantium iste est sapiente, ullam itaque odio iure laborum voluptatem quaerat tempore doloremque quam modi, atque minima enim saepe! Dolorem rerum minima incidunt, officia!</p>
        </div>
        <div class="blog text">
          <div class="title">Blog Content</div>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Alias tempora, unde reprehenderit incidunt excepturi blanditiis ullam dignissimos provident quam? Fugit, enim! Architecto ad officiis dignissimos ex quae iusto amet pariatur, ea eius aut velit, tempora magnam hic autem maiores unde corrupti tenetur delectus! Voluptatum praesentium labore consectetur ea qui illum illo distinctio, sunt, ipsam rerum optio quibusdam cum a? Aut facilis non fuga molestiae voluptatem omnis reprehenderit, dignissimos commodi repellat sapiente natus ipsam, ipsa distinctio. Ducimus repudiandae fuga aliquid, numquam.</p>
        </div>
        <div class="help text">
          <div class="title">Help Content</div>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Maiores error neque, officia excepturi dolores quis dolor, architecto iusto deleniti a soluta nostrum. Fuga reiciendis beatae, dicta voluptatem, vitae eligendi maxime accusamus. Amet totam aut odio velit cumque autem neque sequi provident mollitia, nisi sunt maiores facilis debitis in officiis asperiores saepe quo soluta laudantium ad non quisquam! Repellendus culpa necessitatibus aliquam quod mollitia perspiciatis ducimus doloribus perferendis autem, omnis, impedit, veniam qui dolorem? Ipsam nihil assumenda, sit ratione blanditiis eius aliquam libero iusto, dolorum aut perferendis modi laboriosam sint dolor.</p>
        </div>
        <div class="code text">
          <div class="title">Code Content</div>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tempore magnam vitae inventore blanditiis nam tenetur voluptates doloribus error atque reprehenderit, necessitatibus minima incidunt a eius corrupti placeat, quasi similique deserunt, harum? Quia ut impedit ab earum expedita soluta repellat perferendis hic tempora inventore, accusantium porro consequuntur quisquam et assumenda distinctio dignissimos doloremque enim nemo delectus deserunt! Ullam perspiciatis quae aliquid animi quam amet deleniti, at dolorum tenetur, tempore laborum.</p>
        </div>
        <div class="about text">
          <div class="title">About Content</div>
          <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Necessitatibus incidunt possimus quas ad, sit nam veniam illo ullam sapiente, aspernatur fugiat atque. Laboriosam libero voluptatum molestiae veniam earum quisquam, laudantium aperiam, eligendi dicta animi maxime sunt non nisi, ex, ipsa! Soluta ex, quibusdam voluptatem distinctio asperiores recusandae veritatis optio dolorem illo nesciunt quos ullam, dicta numquam ipsam cumque sed. Blanditiis omnis placeat, enim sit dicta eligendi voluptatibus laborum consectetur repudiandae tempora numquam molestiae rerum mollitia nemo. Velit perspiciatis, nesciunt, quo illo quas error debitis molestiae et sapiente neque tempore natus?</p>
        </div>
      </div>
    </div>
  </div>

</body>
</html>

CSS :

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}
body{
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #dad3f8;
}
::selection{
  background: #6d50e2;
  color: #fff;
}
.container{
  max-width: 950px;
  width: 100%;
  padding: 40px 50px  40px  40px;
  background: #fff;
  margin: 0 20px;
  border-radius: 12px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}
.container .topic{
  font-size: 30px;
  font-weight: 500;
  margin-bottom: 20px;
}
.content{
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.content .list{
  display: flex;
  flex-direction: column;
  width: 20%;
  margin-right: 50px;
  position: relative;
}
.content .list label{
  height: 60px;
  font-size: 22px;
  font-weight: 500;
  line-height: 60px;
  cursor: pointer;
  padding-left: 25px;
  transition: all 0.5s ease;
  color: #333;
  z-index: 12;
}
#home:checked ~ .list label.home,
#blog:checked ~ .list label.blog,
#help:checked ~ .list label.help,
#code:checked ~ .list label.code,
#about:checked ~ .list label.about{
  color: #fff;
}
.content .list label:hover{
  color: #6d50e2;
}
.content .slider{
  position: absolute;
  left: 0;
  top: 0;
  height: 60px;
  width: 100%;
  border-radius: 12px;
  background: #6d50e2;
  transition: all 0.4s ease;
}
#home:checked ~ .list .slider{
  top: 0;
}
#blog:checked ~ .list .slider{
  top: 60px;
}
#help:checked ~ .list .slider{
  top: 120px;
}
#code:checked ~ .list .slider{
  top: 180px;
}
#about:checked ~ .list .slider{
  top: 240px;
}
.content .text-content{
  width: 80%;
  height: 100%;
}
.content .text{
  display: none;
}
.content .text .title{
  font-size: 25px;
  margin-bottom: 10px;
  font-weight: 500;
}
.content .text p{
  text-align: justify;
}
.content .text-content .home{
  display: block;
}
#home:checked ~ .text-content .home,
#blog:checked ~ .text-content .blog,
#help:checked ~ .text-content .help,
#code:checked ~ .text-content .code,
#about:checked ~ .text-content .about{
  display: block;
}
#blog:checked ~ .text-content .home,
#help:checked ~ .text-content .home,
#code:checked ~ .text-content .home,
#about:checked ~ .text-content .home{
  display: none;
}
.content input{
  display: none;
}

Download Code Files

#javascript #html #css

Rocio O'Keefe

1653475260

Responsive Sizer Helps Implement A Responsive Layout

Responsive Sizer

Responsive Sizer helps implement a responsive layout by providing helper widgets and extensions.

Responsive Image

Installation

Add responsive_sizer to pubspec.yaml

dependencies:
  responsive_sizer: ^3.0.8

Usage

Import the Package

import 'package:responsive_sizer/responsive_sizer.dart';

Wrap MaterialApp with ResponsiveSizer widget

ResponsiveSizer( 
  builder: (context, orientation, screenType) {
    return MaterialApp(
      home: HomePage(),
    );
  },
);

Widget Size

Container(
  width: Adaptive.w(20),    // This will take 20% of the screen's width
  height: 30.5.h     // This will take 30.5% of the screen's height
)

Orientation

If you want to support both portrait and landscape orientations

Device.orientation == Orientation.portrait
  ? Container(   // Widget for Portrait
      width: 100.w,
      height: 20.5.h,
   )
  : Container(   // Widget for Landscape
      width: 100.w,
      height: 12.5.h,
   )

ScreenType

If you want the same layout to look different in tablet and mobile, use the Device.screenType method:

Device.screenType == ScreenType.tablet
  ? Container(   // Widget for Tablet
      width: 100.w,
      height: 20.5.h,
   )
  : Container(   // Widget for Mobile
      width: 100.w,
      height: 12.5.h,
   )

Parameters

ResponsiveSizer

maxMobileWidth - Maximum width of a mobile device (If the device's width is larger than this, it will be categorized as a tablet) - Default value: 599

Extensions

Adaptive.h() or .h - Calculated percentage of the device's height (40.h -> 40% of device's height)
Adaptive.w() or .w - Calculated percentage of the device's width (40.w -> 40% of device's width)
Adaptive.sp() or .sp - Calculated sp based on the device's pixel density and aspect ratio (See FAQ)
Adaptive.dp() or .dp - Calculated dp based on the device's pixel density (See FAQ)
Device.boxConstraints - BoxConstraints of the device
Device.orientation - Screen Orientation of the device (portrait or landscape)
Device.screenType - Screen type of the device (mobile or tablet)
Device.aspectRatio - Aspect ratio of the device
Device.pixelRatio - Pixel density ratio of the device

Adaptive.cm() or .cm - The respective value in value in centimeters
Adaptive.mm() or .mm - The respective value in value in millimeters
Adaptive.Q() or .Q - The respective value in quarter-millimeters
Adaptive.inches() or .inches - The respective value in inches
Adaptive.pc() or .pc - The respective value in picas (1/6th of 1 inch)
Adaptive.pt() or .pt - The respective value in points (1/72th of 1 inch)
Adaptive.px() or .px - The respective value in pixels

Take Note

You need to import responsive_sizer package in order to access number.h, number.w, number.dp, and number.sp

Auto import in VSCode and Android Studio doesn't work for dart extension methods. Typing 10.h would not bring up auto import suggestion for this package

One workaround is to type Device so that the auto import suggestion would show up:

import 'package:responsive_sizer/responsive_sizer.dart';

FAQ

What is the difference between `.sp` and `.dp`?

.dp is calculated based on Material Design's dp calculation while.sp is calculated based on the device's pixel density and aspect ratio

Community Support

If you have any suggestions or issues, feel free to open an issue

If you would like to contribute, feel free to create a PR

Use this package as a library

Depend on it

Run this command:

With Flutter:

 $ flutter pub add responsive_sizer

This will add a line like this to your package's pubspec.yaml (and run an implicit flutter pub get):

dependencies:
  responsive_sizer: ^3.0.8

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

Import it

Now in your Dart code, you can use:

import 'package:responsive_sizer/responsive_sizer.dart';

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:responsive_sizer/responsive_sizer.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ResponsiveSizer(
      builder: (context, orientation, screenType) {
        return MaterialApp(
          title: 'Responsive Sizer Example',
          theme: ThemeData(
            primarySwatch: Colors.blue,
          ),
          home: Home(),
        );
      },
    );
  }
}

class Home extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: [
          Container(
            height: Adaptive.h(12.5), // or 12.5.h
            width: 50.w, // or Adaptive.w(50)
            color: Colors.black,
          ),
          Text(
            "This text is responsive",
            style: TextStyle(fontSize: 18.sp), // or Adaptive.sp(12)
          ),
          Text(
            "w=${100.w} h=${100.h}",
            style: TextStyle(fontSize: 12.sp),
          ),
          Device.orientation == Orientation.portrait
              ? Text("My orientation is Portrait")
              : Text("My orientation is Landscape"),
          Device.screenType == ScreenType.tablet
              ? Text("My screen's type is a Tablet")
              : Text("My screen's type is a Phone"),
        ],
      ),
    );
  }
}

Author: CoderUni
Source Code: https://github.com/CoderUni/responsive_sizer
License: MIT license

#flutter #dart #responsive

Max Willor

1596170547

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