This is how Android will work on the Samsung Galaxy Fold and other foldable phones

The Galaxy Fold won't run the same version of Android that you get on the S10.

Android Q supports more foldability
Android Q supports more foldability

While mobile phones used to come in all shapes and sizes, device makers have largely standardized around the flat glass slab.

But we could be looking at another big shift in smartphone design now that the Galaxy Fold has arrived, bringing a brand new way to work and play on our phones.

Parts of the necessary technology have existed for years, but with Xiaomi, Motorola, and others expected to follow Samsung’s lead in 2019, how will Android handle this shift? Well, that depends.

The current state of Android

OLED panels are flexible by their very nature—you’ve probably seen demos of bendy screens for years. But to deploy a flexible OLED in a phone, manufacturers need to ensure the display can fold multiple thousands of times without failing.

This entails reengineering the lamination between layers, along with new display drivers, of course. The technology exists to make this work (Samsung has already shared details about its Infinity Flex display), and some OEMs are wasting no time.

You can technically already get a foldable phone—as long as you don’t need it to be good. The Royale FlexPai burst onto the scene a few months back, available for purchase as a “developer” device for about $1,300. By all accounts, using the FlexPai is a profoundly bad experience, but it’s still the first publicly available folding phone.

Motorola is also reportedly planning to relaunch the Razr brand as a foldable phone. Unlike the FlexPai or Samsung’s foldable phone, this would have a smaller phone-like OLED in a throwback clamshell configuration. While not as imposing from a software perspective, it’s still going to require some customizations. For example, it will need custom code to support app continuity between the outside and inside screens. The goal is to create a continuous interface with as little interruption as possible, along with sensible app behaviors that don’t disrupt the user experience.

Android apps can resize for larger surfaces (e.g. tablets), so a phone that folds open to provide more space would have at least this basic level of functionality today. For instance, apps could have some level of continuity between smaller folded and larger unfolded states.

As of Android Pie, Google included some optimizations that can help make foldable phones usable. For example, there’s support for “multi-resume” in Pie, which is an extension of Android’s multi-window API. The feature allows device manufacturers to keep all apps resumed in multi-window mode, meaning they will continue to update live.

All this is helpful, but the companies making flexible phones with Pie will need to create some custom code to make things work, and that’s not going to be easy judging from the FlexPai’s buggy UI. Google is coming to the rescue, though, in its next Android version. More


Ryan Whitwam

By Ryan Whitwam