Array.map() is a synchronous operation and runs a function on each element in the array resulting in a new array with the updated items. There are situations where you want to run asynchronous functions within map, e.g. updating a list of models and push the changed information back …

We've tailored our 80+ tutorials on Retrofit to the Android platform. The snippets and examples are usually specifically written for Android apps. But that doesn't do Retrofit justice. Retrofit supports any regular Java project, not just on the Android platform. Even though you can implement the vast majority of our …

Developer tools are a minefield. We’re so picky about the tools we use and require a high quality or don’t even consider them. You have an ingrained workflow if you’re like me, you behave like a robot when starting your programming. Update — February 28th 2018 The code …

While running a website you’ll probably iterate on the design and functionality. Adding new pages is a good start to take a different path from your layout and apply new design ideas. At Future Studio, we’ve applied a different design to the galaxy map, compared to other pages. …

Developing your web app isn’t only about the happy path. You need to take care of proper error handling and that applies to more than just showing creative error messages for bad user inputs on forms. Update — February 28th 2018 The code samples of this tutorial are up to …

Actively maintained applications get started and stopped very often. It’s not like the operating system of your web server that doesn’t get touched for years once set up ;-) Especially during development, you’re usually starting a local instance of your app multiple times a day! Update — hapi …

In the previous Gson blog posts, we've always read and written JSON from and to fully allocated memory objects. We assumed that the application already has the entire JSON file in memory. In this blog post, we'll explore Gson's support in cases that isn't possible. Gson makes it easy to …

In this blog post, we'll get practical one more time. Often Android apps require to store smaller objects, for example user information. On one hand, it's often overkill to add a database to the app for just this purpose. On the other hand, it's a hassle to store everything in …