Responsive framework in Flutter

Brother Cat said

This is a component that automatically manages the response interface processing, and is more suitable for flutter web projects.

It automatically manages your resizing, maximum and minimum size, and scaling, but I didn't find the layout control, but this is already very good, and you can write less code.

Minimum size effect

https://gallery.codelessly.com/flutterwebsites/minimal/?utm_medium=link&utm_campaign=demo#/

Flutter.dev official website

https://gallery.codelessly.com/flutterwebsites/flutterwebsite/?utm_medium=link&utm_campaign=demo

Old iron remember to forward, Brother Mao will present more Flutter good articles~~~~

WeChat group ducafecat

b Station https://space.bilibili.com/404904528

original

https://medium.com/flutterdevs/responsive-framework-in-flutter-74b8b2a360a9

Code

https://github.com/ducafecat/getx_quick_start

refer to

https://pub.dev/packages/responsive_framework

text

Flutter is Google's treasure trove of user interface tools for generating excellent, locally compiled iOS and Android applications from a code base. To build any application, we start with widgets-the building blocks of Flutter applications. Widgets describe what their views should be similar based on their current design and state. It integrates a text widget, row widget, column widget, container widget and so on.

This article uses the Flutter response framework package to study the Flutter response framework. With the help of the software package, we can easily implement a responsive screen. So let's get started.

Responsive framework

The responsive framework will automatically adjust your user interface to fit different screen sizes. Create your user interface once and have it display pixel-perfect mobile, tablet and desktop!

Supporting multiple display sizes usually means recreating the same layout multiple times. Under the traditional Bootstrap approach, building a responsive UI is time-consuming, frustrating, and repetitive. In addition, it is almost impossible to make everything pixel perfect, and simple editing takes several hours.

implementation plan

Step 1: add dependencies

Add dependencies to the pubspec.yaml file.

Dependency:

dependencies:
  responsive_framework: ^0.1.4

Step 2: Import

import 'package:responsive_framework/responsive_framework.dart';

Step 3: Enable AndriodX

org.gradle.jvmargs=-Xmx1536M
android.enableR8=true
android.useAndroidX=true
android.enableJetifier=true

Code

You need to implement it in your code separately

Before creating a UI similar to a responsive framework, we added ResponsiveWrapper.builder() to the Material application part of main. Initialize the List type of MaxWith, MinWith and Breakpoints in the file, adjust the size of the device inside it, such as mobile devices, tablets, desktops, and the automatic scaling value is defined, let us understand it and the following code reference.

ResponsiveWrapper.builder(
    BouncingScrollWrapper.builder(context, widget!),
    maxWidth: 1200,
    minWidth: 450,
    defaultScale: true,
    breakpoints: [
      ResponsiveBreakpoint.resize(450, name: MOBILE),
      ResponsiveBreakpoint.autoScale(800, name: MOBILE),
      ResponsiveBreakpoint.autoScale(800, name: TABLET),
      ResponsiveBreakpoint.autoScale(1000, name: TABLET),
      ResponsiveBreakpoint.resize(1200, name: DESKTOP),
      ResponsiveBreakpoint.autoScale(2460, name: "4K"),
    ],
    background: Container(color: Color(0xFFF5F5F5))
  ),

Auto-scaling shrinks and expands the layout proportionally, maintaining the precise appearance of the UI. This eliminates the need to manually adjust the layout to fit mobile devices, tablets, and desktops.

After this, we created a user profile screen, which is an image of the user, and two different types of lists, where the image and some text have been given.

All codes

import 'package:flutter/material.dart';
import 'package:responsive_framwork_demo/Constants/Constants.dart';
import 'package:responsive_framwork_demo/device_size.dart';
import 'package:responsive_framwork_demo/model/popular_course_model.dart';
import 'package:responsive_framwork_demo/model/result_model.dart';

class ProfileScreen extends StatefulWidget {
  @override
  _ProfileScreenState createState() => _ProfileScreenState();
}

class _ProfileScreenState extends State<ProfileScreen> {
  late List<PopularCourseModel> popularCourseModel;
  late List<ResultModel> resultModel;

  @override
  void initState() {
    popularCourseModel = Constants.getPopularCourseModel();
    resultModel = Constants.getResultModel();

    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBar(
        backgroundColor: Colors.white,
        elevation: 0.0,
        title: Text(
          'PROFILE',
          style: TextStyle(
              fontFamily: 'Poppins Medium',
              color: Colors.black,
              fontSize: 15,
              fontWeight: FontWeight.bold,
              letterSpacing: 0.5),
        ),
        centerTitle: true,
      ),
      body: SingleChildScrollView(
        child: Container(
          padding: EdgeInsets.only(top: 20),
          child: Column(
            children: [
              ClipOval(
                child: CircleAvatar(
                  maxRadius: 50,
                  child: Image.asset(
                    'assets/images/mans_img.jpeg',
                    width: DeviceSize.width(context),
                    fit: BoxFit.fill,
                  ),
                ),
              ),
              SizedBox(
                height: 30,
              ),
              Text(
                'Crowley Singer',
                style: TextStyle(
                    fontFamily: 'Poppins Medium',
                    color: Colors.black,
                    fontSize: 15,
                    fontWeight: FontWeight.bold,
                    letterSpacing: 0.3),
              ),
              Container(
                margin: EdgeInsets.only(top: 25, left: 20, right: 20),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceAround,
                  children: [
                    Column(
                      children: [
                        Text(
                          '22',
                          style: TextStyle(
                              fontFamily: 'Poppins Medium',
                              color: Colors.black,
                              fontSize: 15,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.5),
                        ),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          'Courses',
                          style: TextStyle(
                              fontFamily: 'Poppins Regular',
                              color: Colors.black45,
                              fontSize: 11,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.3),
                        ),
                      ],
                    ),
                    Container(
                      height: 32,
                      width: 1,
                      color: Colors.black12,
                    ),
                    Column(
                      children: [
                        Text(
                          '32',
                          style: TextStyle(
                              fontFamily: 'Poppins Medium',
                              color: Colors.black,
                              fontSize: 15,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.5),
                        ),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          'Mentors',
                          style: TextStyle(
                              fontFamily: 'Poppins Regular',
                              color: Colors.black45,
                              fontSize: 11,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.3),
                        ),
                      ],
                    ),
                    Container(
                      height: 32,
                      width: 1,
                      color: Colors.black12,
                    ),
                    Column(
                      children: [
                        Text(
                          '48',
                          style: TextStyle(
                              fontFamily: 'Poppins Medium',
                              color: Colors.black,
                              fontSize: 15,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.5),
                        ),
                        SizedBox(
                          height: 10,
                        ),
                        Text(
                          'Friends',
                          style: TextStyle(
                              fontFamily: 'Poppins Regular',
                              color: Colors.black45,
                              fontSize: 11,
                              fontWeight: FontWeight.bold,
                              letterSpacing: 0.3),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
              Container(
                margin: EdgeInsets.only(top: 30, left: 20, right: 20),
                height: 1,
                color: Colors.black12,
                width: DeviceSize.width(context),
              ),
              Container(
                margin: EdgeInsets.only(top: 30, left: 20, right: 20),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      'YOUR COURSES',
                      style: TextStyle(
                          fontFamily: 'Poppins Medium',
                          color: Colors.black,
                          fontSize: 12,
                          fontWeight: FontWeight.w700,
                          letterSpacing: 0.5),
                    ),
                    Icon(Icons.more_horiz),
                  ],
                ),
              ),
              Container(
                margin: EdgeInsets.only(top: 10, left: 20, right: 20),
                height: DeviceSize.height(context) / 7,
                // color:Colors.purple,
                child: ListView.separated(
                  separatorBuilder: (BuildContext context, int index) {
                    return SizedBox(width: 10);
                  },
                  scrollDirection: Axis.horizontal,
                  // padding:EdgeInsets.only(left:10),
                  //shrinkWrap: true,
                  itemCount: popularCourseModel.length,
                  itemBuilder: (BuildContext context, int index) {
                    return _buildYourCourseModel(
                        popularCourseModel[index], index);
                  },
                ),
              ),
              Container(
                margin: EdgeInsets.only(top: 30, left: 20, right: 20),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      'YOUR PROGRESS',
                      style: TextStyle(
                          fontFamily: 'Poppins Medium',
                          color: Colors.black,
                          fontSize: 12,
                          fontWeight: FontWeight.w700,
                          letterSpacing: 0.5),
                    ),
                    Icon(Icons.more_horiz),
                  ],
                ),
              ),
              Container(
                //  height:DeviceSize.height(context),
                width: DeviceSize.width(context),

                margin: EdgeInsets.only(top: 20),

                child: ListView.separated(
                  separatorBuilder: (BuildContext context, int index) {
                    return SizedBox(height: 10);
                  },
                  scrollDirection: Axis.vertical,
                  // padding:EdgeInsets.only(left:10),
                  physics: NeverScrollableScrollPhysics(),
                  shrinkWrap: true,
                  itemCount: resultModel.length,
                  itemBuilder: (BuildContext context, int index) {
                    return _buildResultModel(resultModel[index], index);
                  },
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }

  Widget _buildYourCourseModel(PopularCourseModel items, int index) {
    return Container(
      width: 70,
      child: Column(
        //mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: <Widget>[
          Container(
            decoration: BoxDecoration(
              shape: BoxShape.circle,
              color: Colors.white,
              boxShadow: [
                BoxShadow(
                  color: Colors.blueGrey.shade50,
                  offset: const Offset(
                    5.0,
                    5.0,
                  ),
                  blurRadius: 10.0,
                  spreadRadius: 2.0,
                ), //BoxShadow
                BoxShadow(
                  color: Colors.white,
                  offset: const Offset(0.0, 0.0),
                  blurRadius: 0.0,
                  spreadRadius: 0.0,
                ), //BoxShadow
              ],
            ),
            child: ClipOval(
              child: CircleAvatar(
                backgroundColor: Colors.white,
                maxRadius: 30,
                //  child:Image.asset('assets/images/earth.png',height:45,color:Colors.blueAccent,) ,
                child: Padding(
                  padding: EdgeInsets.all(4),
                  child: Image.asset(
                    items.img,
                    fit: BoxFit.cover,
                    scale: 7,
                  ),
                ),
              ),
            ),
          ),
          Expanded(
            child: Container(
              padding: EdgeInsets.only(top: 0),
              alignment: Alignment.center,
              child: Text(
                items.title,
                style: TextStyle(
                    fontFamily: 'Poppins Medium',
                    fontWeight: FontWeight.w700,
                    letterSpacing: 0.3,
                    fontSize: 11,
                    color: Colors.black),
              ),
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildResultModel(ResultModel items, int index) {
    return Container(
      margin: EdgeInsets.only(left: 20, right: 20),

      height: DeviceSize.height(context) / 9,

//     / color:Colors.pink,
      child: Row(
        children: [
          Container(
            decoration: BoxDecoration(
              shape: BoxShape.circle,
              color: Colors.white,
              boxShadow: [
                BoxShadow(
                  color: Colors.blueGrey.shade50,
                  offset: const Offset(
                    5.0,
                    5.0,
                  ),
                  blurRadius: 10.0,
                  spreadRadius: 2.0,
                ), //BoxShadow
                BoxShadow(
                  color: Colors.white,
                  offset: const Offset(0.0, 0.0),
                  blurRadius: 0.0,
                  spreadRadius: 0.0,
                ), //BoxShadow
              ],
            ),
            child: ClipOval(
              child: CircleAvatar(
                backgroundColor: Colors.white,
                maxRadius: 28,
                //  child:Image.asset('assets/images/earth.png',height:45,color:Colors.blueAccent,) ,
                child: Padding(
                  padding: EdgeInsets.all(4),
                  child: Image.asset(
                    items.img,
                    fit: BoxFit.cover,
                    scale: 7,
                  ),
                ),
              ),
            ),
          ),
          SizedBox(
            width: 20,
          ),
          Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(
                items.title,
                style: TextStyle(
                    fontFamily: 'Poppins Medium',
                    color: Colors.black,
                    fontSize: 11.5,
                    fontWeight: FontWeight.w700,
                    letterSpacing: 0.5),
              ),
              SizedBox(
                height: 5,
              ),
              Text(
                items.subTitle,
                style: TextStyle(
                    fontFamily: 'Poppins Regular',
                    color: Colors.black45,
                    fontSize: 11,
                    fontWeight: FontWeight.w700,
                    letterSpacing: 0.5),
              ),
            ],
          ),
        ],
      ),
    );
  }
}

Summarize

In this article, I explained that in the Flutter response framework, you can modify and experiment according to your own. This small introduction is from our Flutter response framework demonstration.

https://ducafecat.tech/

https://github.com/ducafecat