26/10/2020

Migrating Native Apps to Flutter – Case study

Whenever a company decides to develop a mobile application, they face the choice “native vs hybrid app development” and most importantly they are looking for efficient ways to implement the idea. If you’ve ever wondered how to save cost for customization when it is time for a major update or a complete redesign in both Android and iOS applications – the answer is FLUTTER. 

 

Business Background:

 

We had a great opportunity to work on a project with Treble Wallet AG which provided a white label license for the Bitcoin Wallet bought by cpi Crypto Payment International GmbH, a company from Berlin, Germany. After taking into consideration the client’s needs, Treble Wallet AG suggested their software as a native mobile app as it offers a fast, reliable, and most responsive experience to users. To save cost for customization, cpi decided to transform the native app to a hybrid development platform. The main selection criteria for the hybrid platform were security and the ability to integrate native components into a hybrid code. That was a crucial moment when they settled to go with Flutter.

 

Technical Realization:

 

Our team recognizes that one of the advantages of working in Flutter is managing a single codebase. If a multi-platform application is generated, instead of building two apps, you’re building one app and simply tweaking it a bit so it works on both platforms. It has the benefit that it needs to be tested once, as it supports modern testing frameworks. What they also bring up as a preference is easy UI development. As with native apps, hybrid apps let you retain the same ability to access device features.

 

Challenge: 

 

  But certainly, every big and important project has its challenges. The biggest challenge our teams have faced was connecting Flutter code with the code to the native platform. Their approach to that challenge was defining connectivity standards at the project level. They stepped up to the plate also when there was no library that had already solved the problem, so as part of the solution they wrote it manually on both platforms. New language and frequent platform updates caused another obstacle for them because the version can be changed and Flutter improved, but it does not necessarily mean that the version is compatible with the libraries. So the only reasonable thing to do was to wait before it switches to the new version.

 

Learnings:

 

Whether you are developing an entirely new app for one or both mobile platforms, or simply adding a new feature to existing native apps, Flutter seems like the ideal platform provided by Google, for your project as a cross-platform development tool. Approved by our team!

 

For starters, some of the skills you should have:

  • excellent knowledge of Java (OOP)
  • good knowledge of Spring Boot 2 
  • good understanding of source control tools such as Git (Github, Bitbucket, or Gitlab)
  • experience with relational databases 
  • apply good technical practices and contribute to the application architecture with a focus on scalability, maintainability, security, and performance.
  • a college degree that corresponds to the required vacancy and at least 2 years of working experience in Java
  • excellent verbal and written communication skills in English

We can give you a fair amount of great benefits such as:

  • remote work
  • flexible working hours, no overtime policy
  • challenging international projects
  • Private health insurance
  • we are offering an honest, supportive, and friendly working environment
  • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

 Feel free to apply for the job if you think we are a perfect match!

    For starters, some of the skills you should have:

    • understanding of OOP concepts
    • Knowledge of REST/JSON Web Services and back-office applications using the newest Microsoft stack of technologies including C#, ASP.NET/ASP.NET Core, WebAPI, T-SQL, SQL Server, Entity Framework
    • Good understanding of Javascript, HTML, CSS
    • Good knowledge of GIT
    • Apply good technical practices and contribute to the application architecture with a focus on scalability, maintainability, security, and performance.
    • a college degree that corresponds to the required vacancy and at least 3 years of working experience for Medior/ at least 5 years for Senior
    • excellent verbal and written communication skills in English

    We can give you a fair amount of great benefits such as:

    • remote work
    • flexible working hours, no overtime policy
    • challenging international projects
    • Private health insurance
    • we are offering an honest, supportive, and friendly working environment
    • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

     Feel free to apply for the job if you think we are a perfect match!

      For starters, some of the skills you should have:

      • A background or qualification in computer science or digital design
      • 5+ years of coding and design experience
      • 2+ years of experience in React
      • understanding of SOLID principles
      • good knowledge of GIT
      • good knowledge of design patterns
      • Good knowledge of UI/UX common practices and standards
      • Webpack
      • SCSS
      • Unit and E2E tests 
      • Experience or motivation to work in Framer Motion

      We can give you a fair amount of great benefits such as:

      • remote work
      • flexible working hours, no overtime policy
      • challenging international projects
      • Private health insurance
      • we are offering an honest, supportive, and friendly working environment
      • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

       Feel free to apply for the job if you think we are a perfect match!

        Your skills are:

        • Angular 2+
        • Typescript
        • RxJS 
        • HTML5 
        • CSS3

        ...and you may have experience with:

        • Webpack 
        • SCSS, SASS 
        • Unit and E2E tests

        We can give you a fair amount of great benefits such as:

        • remote work
        • flexible working hours, no overtime policy
        • challenging international projects
        • Private health insurance
        • we are offering an honest, supportive, and friendly working environment
        • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

         Feel free to apply for the job if you think we are a perfect match!

          For starters, some of the skills you should have:

          • excellent knowledge of Java
          • knowledge of Spring Boot 2
          • know how to create automated workflows with Webpack, Gulp
          • good understanding of HTML5 and CSS3
          • good understanding of source control tools such as Git (Github, Bitbucket, or Gitlab)
          • experience with relational databases
          • experience working with microservices
          • AWS or another cloud provider (GCP, Azure, etc.)
          • experience working with Linux/Unix
          • proficiency in standards-compliant and cross-browser compatible code
          • apply good technical practices and contribute to the application architecture with a focus on scalability, maintainability, security, and performance.
          • a college degree that corresponds to the required vacancy and at least 5 years of working experience in Java
          • excellent verbal and written communication skills in English

          We can give you a fair amount of great benefits such as:

          • remote work
          • flexible working hours, no overtime policy
          • challenging international projects
          • Private health insurance
          • we are offering an honest, supportive, and friendly working environment
          • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

           Feel free to apply for the job if you think we are a perfect match!

            For starters, some of the skills you should have:

            • good programming skills
            • familiarity with API Development (REST, Web API)
            • understanding of OOP concepts
            • a bachelor degree that corresponds to the required vacancy
            • strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
            • thorough understanding of React.js and its core principles
            • experience with popular React.js workflows (such as Redux)
            • familiarity with specifications of Typescript
            • experience with React Saga
            • good knowledge of HTML5 and CSS3

            We can give you a fair amount of great benefits such as:

            • remote work
            • flexible working hours, no overtime policy
            • challenging international projects
            • Private health insurance
            • we are offering an honest, supportive, and friendly working environment
            • knowledge-sharing, transparent and proactive communication among the team are some of our greatest values

             Feel free to apply for the job if you think we are a perfect match!