Requesting data from API endpoints that might respond with large datasets is obviously bad practice. Breaking down massive information packets into smaller chunks is the idea behind pagination. There’s no de facto standard on how to implement pagination on server-side and therefore, clients have to adapt to the solution …

In the previous tutorial on ListViews with images we've only looked at examples where the entire adapter item is an ImageView. The approach still applies if one or more ImageViews are only a (small) part of the adapter item. Your getView() code will look a little different, but the loading …

In a previous blog post we've shown you how to enable logging of requests and responses with Retrofit 2. We also explained that you should only enable logging for development builds only. We recommended that production versions should have logging disabled. In this blog post we'll show you how to …

In this blog post, we'll extend the journey on writing a custom Gson serializer. In the first part we've shown all basics of setting up the code to customize Gson's JSON serialization. If you haven't read it yet, you might want to do so now, since this blog post is …

When working with OAuth 2 APIs, you have to manage access tokens and sometimes also refresh tokens. Generally, the access token is what you’ll use to authenticate your requests. However, the access tokens are short lived and the lifetime differs per API provider. Due to security reasons, the access …

Within the last months we’ve been adding and changing functionality on our homepage to create a comprehensive learning platform. What started out as a blog grew rapidly to a place where you could find solutions for your Android and Node.js problems. And that’s the reason we follow …

In the past, we've explored how to add request headers with Retrofit and how to statically change request headers with OkHttp. In this blog post, we'll dig into how you can add a dynamic amount of request headers to your Retrofit requests. This is a new feature of Retrofit 2. …

In this blog post, we'll show how you can simplify the customization of (de)serialization. In the past few blog posts, we've demonstrated how to customize serialization, deserialization and how to utilize instance creators. All of those options were only available via a custom Gson instance and some boilerplate code. …