Flutter Package for Custom Scanning

Scan by mobile is in pattern in many applications, the Easiest method for sending/getting data from code that can be scanned by the camera.

Features

Scan the QR Code and Bar Code

Getting started

• Add dependencies to pubspec — yaml file.
• Import
• Run flutter packages get in the root directory of your app.

Usage

Check the Example for more info

Additional information

Use this package as a library

Depend on it

Run this command:

With Flutter:

 $ flutter pub add custom_scanner_pkg

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

dependencies:
  custom_scanner_pkg: ^0.0.1

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:custom_scanner_pkg/custom_scanner_pkg.dart'; 

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Scanner Package Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Scanner Package Demo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _scanBarcode = 'Unknown';
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Container(
            alignment: Alignment.center,
            child: Scrollbar(
              child: Flex(
                  direction: Axis.vertical,
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    SizedBox(
                      width: 200.0,
                      height: 300.0,
                      child: CustomScanner(
                          type: 'QR Code',
                          scanResult: (result) => {
                                setState(() {
                                  _scanBarcode = result;
                                })
                              }),
                    ),
                    SizedBox(
                        width: 400.0,
                        height: 300.0,
                        child: Text('Scan result : $_scanBarcode\n',
                            style: const TextStyle(fontSize: 20)))
                  ]),
            )));
  }
} 

Download Details:

Author: 

Source Code: https://pub.dev/packages/custom_scanner_pkg

#flutter #andoid #ios 

How to Customise Logcat in android Studio

In this video i tell you how to customise your logcat completely which will help to faster debugging

#andoid 
#code 
#programming 

Flutter - Food Menu App UI

https://youtu.be/u8BZpZo6gOU

#TheTechDesigner
#Flutter #FlutterUI #SpeedCode #FlutterTutorial #FlutterAnimation #FlutterWidgets

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► Food Recipes App UI - https://youtu.be/GxHyNwBOBMg
► Food Menu App UI - https://youtu.be/u8BZpZo6gOU
► E-Bike/Scooter App UI - https://youtu.be/GiF6r_tipx8
► Furniture Shop App UI - https://youtu.be/rjy02JKwcO0
► Watch Store App UI - https://youtu.be/S_qzTkx9vCQ
► Food Recipes App UI - https://youtu.be/GxHyNwBOBMg
► E-Commerce App | EP.02 Landing Screen -https://youtu.be/IvugwMnQXCs
► E-Commerce App | EP.03 Signup Screen - https://youtu.be/ZaKpWeuKhXs
► E-Commerce App | EP.04 SignIn & ForgotPassword Screen - https://youtu.be/sh52KFB94Lo

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THANKS FOR WATCHING!

#flutter #andoid #ios #ui #food #menu

iOS VS Android App Development: Which Your Business Need First?

Businesses are striving for apps to increase the company’s growth. One can see a steep rise across the globe to create apps to lead the company. All your competitors are also working day and night tirelessly to stand like a rock in such times. 

Do you know? As per Statista, the number of smartphone users will reach up to 3.8 billion by the end of 2021.

You have taken the right decision to develop the app for your business. But you might have slight confusion on which platform you should get the app first, Android or iOS.

Android and iOS platforms have different user bases that you need to target for your business. There are some factors that you need to focus on while developing the app. These are like target audience, budget for development and deadlines, desired features, and revenue.

In this blog, I have explained major factors to keep in mind for developing the app. I have also thrown some lights on the pros and cons of Android and iOS, comparing these two platforms.

At first, Let’s discuss the factors to consider when choosing between Android and iOS development.

1. Target Audience

Whenever you decide to build an app, what comes to mind is the audience, as they are the ones who will be using your app.

As far as Android users are concerned, they are more likely to be found in emerging markets like Asia, Africa, and South America. So, if you target a global audience, then creating the app on Android will be more fruitful than Apple. 

Do you know? Android has opted for the first position in the market in terms of market share. 

Despite it, If you want to develop the app on Android, make sure that your audience belongs to the medical or technical fields. 

As far as iOS is concerned, the audience who use Apple are found in North America and Europe. They are professionals, managers, and sales experts who tend to be more affluent than Android users.

iOS users have higher education degrees and seek innovative technology. They engage more with mobile devices and make in-app purchases. Thus, if your audience is in North America and Europe, iOS may be your best bet.

2. Budget for Development and Deadlines

If we compare both of these platforms in terms of budget development, iOS would be cheaper than Android. One of the main reasons is the coding language.

Android relies on Java, an open-source language that requires writing more code to develop the app. In contrast, iOS uses its programming language, Swift, to deliver the application.

Swift is more convenient and reliant than Java for creating an app. Thus, it saves developers time and effort to write codes, which leads to less development costs.

Since Android is an open-source platform, it requires more components, tools, and software fragmentation to develop the app that takes a lot of time. 

iOS close system allows developers to work on less standardized devices that take less time to create the application. Hence creating an app with the iOS platform is a lot easier to hit the market than the Android one.

3. Desired Features

It is the dream of each developer to customize the app according to the requirements. The android platform lets developers fulfill this wish by giving them access to hardware and file systems. 

Hence, he can add desired features and create unique applications. You can get in touch with an android app development company in India to develop a scintillating application.

In contrast, iOS does not provide developers with access to hardware and such components as it is a more secure system. Thus, you can not get desired features in the app compared to the Android platform.

4. Revenue

As per the recent app development report, the iOS platform dominates the market with a 74% share in terms of revenue. The Apple app store generated $46.6 billion in 2019, whereas the Google play store collected $24.8 billion only.

In spite of the fact, Apple has less users and gets fewer app downloads, Apple’s app store brings in more revenue. This is because iOS users are affluent and buy in-app purchases, while Android users are less wealthy and tend to use free apps.

Another reason is iOS users have a higher lifetime value(LTV). That means they like to spend more money inside the apps buying additional content. You can also contact an iOS app development company in India to reap the benefits.

Having discussed the components, now look at the following comparison chart of Android and iOS.

Comparison Points	Android	iOS
Developer	Google	Android
Messaging	Google Hangouts	iMessage
Internet Version	Google Chrome	Mobile Safari
Customizability	easy to customize	Limited customizability
Source	Open source	Closed, with open source components
Development Language	Java, Kotlin	Objective-C, Swift
Voice Commands	Google Now, Google Assistant	Siri

Let’s discuss the pros and cons of each platform.

Pros and Cons of Android App Development

Advantages

• Android is an open-source platform, and it provides developers the customization freedom to create interactive apps.
• The advent of Android Studio has scaled up the flexibility of the android app development that integrates with the complete android ecosystem.
• Android uses Java language to develop the app, and the reason being the app is easily portable to other platforms like Ubuntu and Symbian.
• It offers a software development kit (SDK) that enables developers to create robust mobile apps.
• The main advantage of the android app development is that it holds the biggest market share.

Shortcomings

• Android has security threat issues as it is an open-source platform. Thus, it has a greater probability of potential bugs.
• Due to fragmentation, design complexity occurs that creates a headache for developers to fix the issues.
• The cost to develop the app is relatively higher than the iOS platform, and it increases significantly in the app development process and quality assurance.

Pros and Cons of iOS App Development

Advantages

• The iOS platform is easy to use, fast and reliable, allowing developers to build the app in less time and effort than Android.
• It brings more revenue than Android as it is estimated that iPhone users tend to buy in-app purchases, whereas Android users tend to use free apps.
• Apple offers developers an extensive design guide that enables them to create unique user interfaces(UIs). Thus, the iOS platform is one step ahead to deliver an exceptional user experience.

Drawbacks

• The Apple app store has rigid review guidelines that mean if your app does not fulfill requirements accordingly, the app can get rejected. Despite it, you will have to submit your app for review, and earlier, it took a few hours to review, but now this has been changed, and it may take up to one week for the review.
• iOS has imposed some restrictions that do not let developers customize the app freely, which affects its popularity amongst the users. It ensures the same guidelines to develop all the apps that make it hard to create an app that can stand apart from the crowd.
• There are frameworks that iOS offers, but some are licensed and chargeable that may take extra charges to create an app.

Android vs iOS: Choose One to Develop First

Indeed, as we discussed, both platforms are the right choice according to their specific features. You can’t ignore one over the other, still based on your audience, budget development, and revenue goal, you can opt for one.

If you are targeting a global audience, you should essentially opt for the Android platform. You can choose the iOS platform if your audience is in the Europe and North America region.

Even after going through several perspectives of both platforms, if you have any confusion, you can clear it by contacting any mobile app development company in India where you will get full support.

Original source

#andoid #ios #android app development #ios app development #mobile app development #apps development

How to Test Android Activities

When I started developing Android apps, I didn’t write any tests. Of course not — I was just mucking about, making things for my own enjoyment. Then, I decided to be a professional. I started small, with the simplest possible app, and the simplest possible test, and was immediately stumped. For anyone in the same boat, this article is for you!

Say you have an activity with a button. When you press the button, you want to open a different activity.

Your source code might look something like this:

class ExampleActivity : AppCompatActivity() {
	    fun openOtherActivity() {
	        val intent = Intent(this, OtherActivity::class.java)
	        startActivity(intent)
	   }
	}

Somewhere, in a layout file, you set the onClickof a button to openOtherActivity. But let’s just focus on the Kotlin code. No need to aim too high, right?

Then (or preferably beforehand, if you are diligently applying TDD) you try to write a test. To start with, you might not even check that it behaves as you expect. The simplest possible test is just “When you call the function, nothing explodes.”

It might look something like this:

class ExampleActivityTest {
	    @Test
	    fun breaks() {
	        val exampleActivity = ExampleActivity()
	        exampleActivity.openOtherActivity()
	    }
	}

Even this very simple test, however, results in an error:

java.lang.RuntimeException: Method startActivity in android.app.Activity not mocked.

This is because in test environments, Android-specific stuff doesn’t exist. This was a deliberate design choice by Android, and it has its pros and cons. One outcome of this decision for unit testing is that we have to mock Android-specific components.

One mocking library for Kotlin is MockK, which I will use for this example. Any other similar mocking library should do the trick.

So, back to our test. We can mock the startActivity method (and keep everything else as the real thing) using spykfrom MockK:

class ExampleActivityTest {
	    @Test
	    fun does_not_break() {
	        val exampleActivity = spyk(ExampleActivity())
	        every { exampleActivity.startActivity(any()) } returns Unit
	        exampleActivity.openOtherActivity()
	    }
	}

And now the test passes!

From there, we could extend the test to more thoroughly check the actual behaviour of the function. For example, whether it calls startActivitywith the right kind of intent.

For the next example, suppose we want to add some extras to the intent before opening the activity:

class ExampleActivity : AppCompatActivity() {
	    fun openOtherActivityWithExtras() {
	        val intent = Intent(this, OtherActivity::class.java)
	        intent.putExtra("name", "value")
	        startActivity(intent)
	    }
	}

We try running a similar simple test, just checking that nothing explodes:

class ExampleActivityTest {
	    @Test
	    fun breaks_again() {
	        val exampleActivity = spyk(ExampleActivity())
	        every { exampleActivity.startActivity(any()) } returns Unit
	        exampleActivity.openOtherActivityWithExtras()
	    }
	}

We’ve used the same mocking trick as last time, but now we get another error:

java.lang.RuntimeException: Method putExtra in android.content.Intent not mocked.

#andoid #dependency-injection #kotlin #programming #mobile #app