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If you’ve ever posted to a social network from Hootsuite’s iOS or Android application, then you’ve used the composer. The composer is where you write the message body of your post, maybe attach a video or GIF, and select the social networks to send it off to.

The code behind message composition, however, has grown unwieldy. The main activity on Android is somewhere in the order of 3,500 lines long. When it comes to implementing new features, it is difficult to add to and easy to break. As Publisher’s mobile team looked to revamp the design, refine some features and add others, developing a new architecture for message composition was the clear first step.

Hootsuite's Composer Window for iOS
Hootsuite’s Mobile Composer Window

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Up until recently, loading images on Hootsuite’s Android app had been done via Volley, an asynchronous networking library. We now use a library purpose-built for image loading and caching called Glide. Given the recent change, it seemed worthwhile to examine first, what pain points Glide addresses and then do a walkthrough of how it’s used.

Why the change? 


Volley is an HTTP library and that handles the main pain points surrounding loading images – namely, networking and caching – but is not made solely for that purpose. The problem? Loading a remote image into an ImageView can get verbose. Glide can do the job in one line and is a nice wrapper for an HTTP client. Glide uses HttpUrlConnection as its default network stack, but can be set to use Volley or OkHttp. Two other key benefits of Glide are, smoother loading when scrolling through a view that contains images (see the example below); and perhaps more importantly, animated GIF support. Viewing and posting media to social networks is central to Hootsuite so using a library that makes loading images a better experience for users and easier for programmers makes a lot of sense. Read More …