MVVM – A new chapter in mobile development!

MVVM – A new chapter in mobile development!
In simple words, design pattern is all about solving problems in software development process that “WE” developers face from time to time. Design patterns are incredibly useful, no matter which language or platform you develop for. Every developer should know how to implement them, and most importantly, when to apply them.

What is MVVM ?

Short answer, it is a design pattern.

What is design pattern ?

In simple words, design pattern is all about solving problems in software development process that “WE” developers face from time to time.

Design patterns are incredibly useful, no matter which language or platform you develop for. Every developer should know how to implement them, and most importantly, when to apply them.

When to apply MVVM ?

It is a little long story… 👂

A few years ago at IndaPoint, for the mobile app development, we were doing almost a linear programming. There was nothing bad in that. It was all looking correct. It was fine for small apps. But…few apps was growing day and nights. Even before we realize it became too big then we ever expected.

We started facing a problems which were not so noticeable before:

  • A feature request comes from a very old code. Implementing that new feature breaks something working already.
  • Developers come and go. A new dev implements something which breaks something existing because one was not aware with in-outs and all the existing features of a big product.
  • QA was require to cover more areas than one should be just to make sure everything existing working correctly, along with new feature.

We discussed this amongst us and then concluded that the code (yes, code. Not talking about the app) now is required to be testable. “Write Unit Tests” was the call we made!

Cool, then…

When we started to find a solution, we ran into another problem. The code was not testable. Not testable at all. The “good old” linear programming was good, until unit testing was not required. When we wanted to test business logic, other app specific things were keeping us away from what we wanted to test.

We then decided that let’s separate out business logic from app specific code. We came to know that there is a design pattern available which can help with this situation.

“MVP – Model View Presenter”

What is MVP design pattern ?

It has basically 3 components: Model, View and Presenter. Refer following picture to understand it better.

User interacts with View. View is not aware of what to do on that interaction. So it notifies the presenter about that interactions.

Presenter is a manager(The Boss!) here. It knows everything: what to do, when to do. It takes help of model class to get things done.

Model classes are nothing but the servants who provide service whenever they are asked.

When the desired work is done using model, presenter notifies views to show the result to the user.

Presenter holds the reference of View and Model. So that it can communicate with View and Model whenever required.

That’s how we managed to separate out business logic and app specific view related code. Now only thing we need to test here is Model – because it is the only one holding business logic. ✌️

Great! What about MVVM now?

It went well for couple of years. But then we realized that only testing business logic is not enough. We need to test few view specific things as well. For example, what error message user will see in some scenarios. Is progress bar visible to user for this long running task etc…

We were not able to test those using MVP. Only testable component there was Model – The business logic holder. 😟

Then comes MVVM!

MVVM – Model, View & ViewModel.

Picture please…😐

Same as MVP, when interaction happen with a View, it knows nothing. So it notifies ViewModel.

ViewModel is a manager here. It knows everything: what to do, when to do. It takes help of model class to get things done.

That sounds very familiar..!!

Oh my god, it is same as MVP. Just presenter has been replaced by ViewModel.

BTW, what is ViewModel ?

ViewModel is just good old model, but holding state and behaviour related to view. I said, state and behaviour related to views, not actual views.

There comes a difference between Presenter and ViewModel: In MVP except model, there were app specific code in Views and Presenter was holding a reference of Views.

ViewModel is not holding any reference of View. ViewModel is completely unaware of View. It is just holding the state and behavior.

It just holds the data that “when this happen, that should happen on a view”. Nothing more than that. It doesn’t even care if that is happening already or not. Whenever any state of a ViewModel changes, it broadcasts an event without knowing who might be listening.

When the app is running, View is the one who is interested in those events and update the elements accordingly.

When we want to test, we can test ViewModel to make sure behavior of the app is as expected or not.

So we were now able to test business logic using Models and View related business logic using ViewModels. 🎉

That’s where we’re at the moment and using this design pattern extensively for all our mobile app development at Indapoint.

 

Stressless Devs -> Satisfied Clients

🙏

 

Leader in handcrafted website design and development including branding and customization

Hiring the leader in the industry is likely to give your online business the much needed boost. Handcrafted Web Design and Web Development tend to serve as a lucrative and efficient web solution for businesses globally. Ranging from excellent professional support to unique Website Design, the customized site can help the business to grow optimally. Hiring the best development and designing company can help your online business to great heights.

Leader in handcrafted website design and development including branding and customization

Handcrafted Web Design and Web Development tend to serve as a lucrative and efficient web solution for businesses globally. Ranging from excellent professional support to unique Website Design, the customized site can help the business to grow optimally.

Hiring the leader in handcrafted site design and development for promoting the business

When it comes to promoting your business over the web, you should try to hire agencies that are able to offer your business with an intriguing and unique site design with top notch functionalities. Although there are found easily thousands of appealing templates and robust designs that might appear to be appropriate and feasible at first glance and available for free or for a small fee, when it comes to online business promotion, customization services offered by the best designing and development companies cannot be neglected or avoided. The reason is because, ready-made templates cannot live up to the expectations of the business and your targeted clients.

Therefore, hiring the leader in the industry is likely to give your online business the much needed boost.

Why go for customized web designing, development and branding services?

Custom designing and development does allow you to have your site personalized precisely when and how you desire it. No wonder, customized development services are fast becoming popular among businesses all over the world.

Knowing the reasons for getting customized services.

  • Being SEO friendly: It is only a professional company that can help with custom designing and development to increase the chances of ranking few top pages in the leading search engine results. Customized sites are tailor-made for suiting specific business and web needs and hence, well suited for web marketing.
  • Effective branding: Majority of the time, it has been noticed that having the brand poured into generic template tends to backfire. However, developing the site around the brand is likely to provide sufficient room for promotion and branding. The custom site is sure to fit the brand properly and also be efficiently used for promoting the services and products.
  • Availing professional assistance: While availing customized development services, you can get access to the experienced, talented and knowledgeable developers and designers. Moreover, by hiring reputable and steadfast firm, you are sure to anticipate 24/7 assistance and ongoing support from the professionals across various phases of the project.

         Hiring the best development and designing company can help your online business to great heights.

Create an Exceptional Customer Journey With Your Website

While designing a site, page speed is to be considered. The site needs to load much faster on both mobile devices and desktop. In case, it is found to be slow, then the visitors are sure to leave before the site opens up. Slow loading sites are generally developed on themes, having numerous plugins associated with it.

Create an Exceptional Customer Journey With Your Website

Gone are the days, when entrepreneurs used to make simple websites filled with information about their business and have it go live on the web. But with millions of similar sites on the web, competition has enhanced manifolds. Moreover, net users have become much smarter and understand that they can get crucial information over the web and can shop from the sites from the convenience of their home or on the move, using various gadgets and devices. Whatever be it, there is a need for entrepreneurs to ensure that they come up with sophisticated Website Design and Web Development to lure their potential customers and to make profits.

Importance of user experience when developing site design

UX or user experience is regarded to be a vital factor and hence, is to be taken into account while designing a site. In case, the site is wrong, then the visitors would not find it interesting and may leave for moving towards the competitor sites. This would mean loss of traffic and subsequent revenue for the business.

Things to consider when taking into account Web Design and development

While designing a site, page speed is to be considered. The site needs to load much faster on both mobile devices and desktop. In case, it is found to be slow, then the visitors are sure to leave before the site opens up. Slow loading sites are generally developed on themes, having numerous plugins associated with it.  Many amateur developers perform this without having any idea of what is being done. Some might offer cheaper packages, as they would be making use of similar theme repeatedly, allowing them to have the website to be made fast, which may appear fine. However, behind the scenes, the site might run very slowly like a slug.

Navigation is another aspect to consider. For better user experience, it needs to be user friendly, stand out and display crucial pages. If not, then the users are likely to struggle in navigating the site, providing bad user experience.

In case, products are being sold through the website, then user experience is not to be ignored or missed out, since e-commerce sites are regarded to be the highest offending websites derivable. Slight changes could actually make huge difference to the bottom line.

The fact is that user experience does count a lot, when developing a site and ignoring it would only mean loss for the business. Therefore, an exceptional customer journey is to be created with the website, which is better done by the talented designing and development professionals.

Mobile app user experience is getting more critical than eve

If you search the google play, you will find hundreds of apps which are made for the similar purpose. So, due to the increase in the number of apps every now and then, the competition has increased. Now users are comparing apps based on the file size, appearance, online or offline functions and much more. So your mobile application development companies must know the latest trend which the users want the most.

Why is Mobile app user experience getting more critical than eve?

These days market is flooding with apps. There are about one million apps and more than 50 billion downloads from the app store. Every small and big company, institutions, organizations need their own app. there are also thousands of mobile application development platforms. Mobile application is a good way to get a new customer and also keep in touch with regular customers.

Why is mobile app experience getting critical?

If you search the google play, you will find hundreds of apps which are made for the similar purpose. So, due to the increase in the number of apps every now and then, the competition has increased. Now users are comparing apps based on the file size, appearance, online or offline functions and much more. So your mobile application development companies must know the latest trend which the users want the most.

Latest mobile apps development trends

Here are some of the features which users and manufacturers are giving more preference. They will certainly help the users to get a better experience than before.

  • Short turnover time period: now a day’s people want everything fast. They need to develop and launch the app as soon as possible. There are many tools which facilities the developers to develop an app in the least possible time. So, the old mobile app developing tools are getting worn out and are replaced by the tools of the new age.
  • Cloud based: the users, as well as the organizers, are using multiple devices. No one wants to lose any information due to change of devices. They also want to access the data’s from different terminals. The cloud approach helps them to do so. There are many mobile application development tools which facilitate easy development of cloud-based app without any hassle.
  • Security: most of the app fails in this part. With the increase of apps and users, there is also a serious increase of cyber security threats. There are many hackers who are in a continuous search for the leaks and cracks of such security features. So, the developers must work out at this point, so as to make the experience more fruitful.
  • Mobile payments: a huge percentage of sales are done from mobile terminals. So, there must be provision to pay the service using m-wallets, or other mobile based payment services.
  • Wearable technology: this is a burning trend in the electronics industry. There are a lot of mobile app developers who are focusing on the wearable device applications.

How the website users know how to scroll and they expect to scroll

These days the Web Development had brought out the concept of the fold, so as to attract readers. An efficient Content Management System can give you a huge number of customer or followers. As the length of the page increases, the number of words also increases and this provides better SEO ranking. For this reason, there is a very popular concept known as the fold.

How the website users know how to scroll and they expect to scroll?

No matter what website you are designing, be sure that the users are going to scroll. Scrolling is good since it gives your viewers a complete idea of what you want to convey. It is seen that, if you have a lengthy content, then it’s better to put the content in one page than to provide links to other pages. People are always more comfortable to scroll than to open another page to read your content. These days the Web Development had brought out the concept of the fold, so as to attract readers.

Why is it so important?

Your website content is the only things which can impress your viewers to buy your services, or to like your work. An efficient Content Management System can give you a huge number of customer or followers. As the length of the page increases, the number of words also increases and this provides better SEO ranking. For this reason, there is a very popular concept known as the fold.

What is the importance of fold?

There are multiple websites where the Web Design has folded content. The fold is dividing the screen into two parts. The portion above the fold is the area where the user can see anything without scrolling. The fold can appear different for different users. This concept is vanishing because there are too many devices where it is very hard to consider fold line. But a concept of the fold can be attractive to get a first impression about your site. Make sure that your page is ended by a link so that the user knows where to go next.

How to encourage the users to scroll your website?

People have an inherent quality to scroll. So the Website Design must be such that so that users will feel excited to scroll down. The following are the common ways, by which you can encourage the users to scroll your content.

  • A horizontal line or bar just near the fold is considered many times, as the end of the page. So, try to avoid, these bars of lines in your content. This concept is known as a false
  • The use a background on top and sides of the pages, with contrasting colors is very popular among viewers. It also gives an idea the continuity of the main page.
  • Website Design Services also allows you to add; please scroll quotes just above the fold line.

Specializes in content management solution

Having E-commerce solutions established the right manner, does involve several tasks, which includes shopping carts, Content Management System, checkouts, secured payment gateways, Web Apps Development, Website Design Services and much more

Specializes in content management solution and E-Commerce Website Designing & Development

Since competition is increasing by the day, it has become important for every business to have good rapport established with the clients, either prospective or existing. It is not just enough to establish a website. It is presently the age E-Commerce and it  has become essential  for organizations to offer services and products online for remaining connected with the clients and to ensure that they do not move on to the competitors. But having a simple site is not likely to offer the desired benefits for witnessing business growth. Hence, there is a genuine need to hire E-Commerce Web Development professionals, who can assist in driving sales as well as enhance profits.

Why select a development firm that specializes in content management solution & e-commerce site development and designing?

  • Experience: A reputed E-Commerce Web Design and development firm is sure to have immense experience in the domain and can assist in formulating different types of marketing plans and strategies to help the business to reach greater heights of success. Their experience can be checked out from the reviews and testimonials put up by past and existing clients.
  • Flexibility: The professionals are flexible enough to provide the very best E-Commerce solutions. They can easily have their marketing strategies customized to meet the specific requirements of their clients and provide custom solutions. This way, the particular needs and requirements are met.
  • Quality output: A good and well established designing and development firm is sure to offer its clients with great quality results. There is required better quality, unique solutions to keep competition at bay. Such professionals do assure their clients with unique solutions which are superior in quality, while assuring increased returns on investments made.
  • Knowledgeable staff: The professional development company is sure to have employed certified, qualified, knowledgeable, experienced and talented staffs. They ensure that the task given to them is undertaken with great dedication and the end results provided are more than satisfactory. This way, the professionals can help their clients to enhance reputation of their business.
  • Price: The best provider is sure to offer its clients with comprehensive pricing policy. Their past records would speak volumes about their talents and creativity and offering the best results.

Therefore, hiring the specialists is sure to do the business lot of good.

Unique and Conceptual Web Development in California, USA

When Website Design and Web Development is concerned, it is important for every entrepreneur to ensure that they seek a good and reputed designing and development company that boasts of having employed highly talented, experienced and knowledge team, who are flexible and ready to accept all types of challenges that may arise when carrying out the different activities. It is only a well established designing firm that can make a huge difference to the business and to lure potential clients in huge numbers to check out the products and services offered by the site and to assist in generation of profits.

Overcoming competition

With competition growing at a fast pace, Web Apps Development has become more than a luxury, but a necessity, without which reaching out to the mass would become impossible and success not achieved. The best way to beat competition is to be ahead of the others by hiring the best Web Design and development firm in the industry, who can offer fabulous solutions that is just perfect for promoting the business online.

Choosing the right web development and designing firm

For deriving the best results, there is a need to check out the traits of the firm, so as to make the right selection. The team needs to be talented and should be able to plan a smart site structure, get the domain registered,, upload files, set email accounts and work on other essential technical details.

Besides this, there are various other aspects which need to be looked into for hiring that ‘awesome’ web development and designing team.

  • Experience: It is undoubtedly the most important aspect that cannot be missed out or ignored during the selection n process. The professionals should have knowledge in web markup languages, protocols and coding utilities: X ML, HTML, PHP, CSS, etc.
  • Customer Orientation: The clients are to be updated on the project’s progress periodically. Communication does play a crucial role in production.
  • Creativity: The team needs to be highly innovative and creative, so as to come up with a masterpiece. They are to provide assistance with few of the crucial questions like copy writing, generating traffic and marketing.
  • Project timeline: They should be able to deliver the desired results on time and meet the set deadlines.

A great designing and development team in California, USA can definitely come up with a great looking and functioning site.

Demands & Supply of Mobile Apps development

With more and more people getting hooked to mobile devices, a good number of businesses have been taking keen interest in investing in availing the best android mobile application development companies available.

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These days, the demand for well established and experienced mobile application development companies have been increasing at a fast pace and is regarded to be a highly progressive and booming industry. With more and more people getting hooked to mobile devices, a good number of businesses have been taking keen interest in investing in availing the best android mobile application development companies available.

Previously, hiring by organizations was just limited to software engineers and industry professionals for the purpose of apps research and development and to market them. For the advanced computer tablets and smartphones, the need for android apps development has been increasing.

Smart-phone application development

Android application development for smartphones can enhance creation of innovative ideas and to make them to become a grand reality. There does exist several mobile application development platforms to serve the specific needs of the businesses as desired. It is the benefits derived by the end consumer that is to be kept in mind at the time of mobile apps development. The mobile application development software specialists are sure to provide amazing apps to meet the specific requirements of the clients, across the globe.

Types of platforms

Different types of mobile application development tools do exist upon which the apps can be developed. They are given below:

  • Android development
  • ios application development
  • iPhone
  • ipad
  • J2ME Mobile
  • Blackberry
  • Symbian
  • Windows Mobile

With the demand for mobile apps increasing by the day, application programmers have been trying to come up with the right solutions and packages to fill the supply. The app developers are termed to be specialists in the domain, highly creative, well trained, knowledgeable and experienced. They are ready to develop any type of app using Wi-Fi, GPRS, and GPS technologies. Such app developers can come up with variety of apps for the latest tablet PCs and smartphones. The apps are developed on variety of categories, like:

  • Money & Finance
  • Business
  • Games
  • News
  • Weather
  • Lifestyle
  • GPS Navigation
  • Travel
  • Lifestyle
  • Study and Education
  • Wireless Net Security

They are termed to be few of the development areas for developing apps. Besides these, also are present several app firms that offer creative apps in the other categories, apart from those mentioned above. The specialists are said to be dedicated towards their clients’ business and try to meet the specific needs promptly and quickly.

Create an Exceptional Customer Journey With Your Website

As you can see, there is a lot of Web Development then you think. Among all of them, these 2 are the most important. As such, you should make sure that you follow these tips if you want to make your website top notch.

Making your customer’s journey through your website exquisite and memorable

When you create a website for your business, the first and foremost thing that you should keep in mind is how things are from the perspective of the user. That should always be the main concern for anyone who wants to make sure that their website blooms into popularity. And when it comes to doing that, there are a lot of options at your disposal. Here are some of the tips that you can follow in order to achieve just that.

The two most important things that you have to manage in order to make the customer’s journey a convenient one are:

* Web Design
* Content Management System

Web Designing

  • Layout: In web designing, the first step that you should be concerned with is making sure that the layout for your website is the best and one which suits your needs. Some things to consider when looking for a good layout are:

1. Height and width of the screen.
2. The height of the header and the footer.
3. Placement of content.
4. The simplicity of design.

  • The position of Content: Positioning the content on your website is crucial to your success. It should make the customer feel comfortable when browsing through it. A customer is more likely to judge your website by the first impression he or she gets rather than by actually reading through your content.
  • Optimization: Optimizing the website is also of great importance when creating a website. You have to make sure that the overall usage is low. This can be done by avoiding the overuse of images, scripts, flash content, etc.

Managing Content

Making a website involves more than just Website Design. Selecting a CMS for your website is an equally important task.

  • 3rd Party Support: One of the most important tasks for you when choosing your CMS is to make sure it gets support from a 3rd part software. This allows you to have more tools and resources to make your website better.
  • Google Friendly: A good CMS will always have a good SEO solution for you. And what better search engine than Google to carry things out?
  • Phone Friendly: In today’s times, smartphones are the buzz of the town. Having a CMS that is friendly with mobile users is thus of utmost importance in today’s world.

As you can see, there is a lot of Web Development then you think. Among all of them, these 2 are the most important. As such, you should make sure that you follow these tips if you want to make your website top notch.

How to make the website more responsive

Web design is a very important thing now to maintain on your website because it will help the users of the website to find out anything they are searching on the website

Being Responsive to the Small Things – how to make the website more responsive

Web design is a very important thing now to maintain on your website because it will help the users of the website to find out anything they are searching on the website. If the design of the website is perfect, it will help the website to be more responsive even to the little things. It will surely have a huge effect on the search engine optimization of the website.

Why responsive design:

You have made the website of your company to do your business online. Online marketing is undoubtedly one of the best ways of marketing now a day. So, a responsive web design of your website will make the customers feel easy to find out the things they want to know from your website. It will surely increase the customer crowd who will visit your website. This will increase the SEO of your website and eventually it will make your website perfect for the purpose of the online marketing.

How to make the Website Design responsive:

  • You need to understand the foundation. The layout of the website is a very crucial thing to make the website more responsive. So, you need to take care of it.
  • One of the most important steps will be to use the proper web content. It will help to make the website responsive. You can add a bit of Lorem Ipsum in the body of the website.
  • Shuttle patterns will also help the website a lot to be more responsible for getting the right responsive design.

Go through the online tutorial:

It will be better for you to go through some of the online tutorials to find out how you can make the website responsive. If you go through the tutorial, you will be able to find out the quick ways to make the website more responsive. It will help the users of the website to find out anything regarding the website in an easier way. You will know how you can make the foundation perfect. At the same time, you will also learn to prepare your website with the proper framework which will also play a crucial role in creating your website more responsive to the users.

So, when you think of the web development you should keep in mind that you should do it in a way in which the website will be more user-friendly. When the users get the information, easily they will visit your website more which you will always want to get more customers. For maintaining the search engine optimization, this will be extremely crucial.