We know superconductors have potential. Though they seem something so nascent and sensational, they are not condemned to

ultiple pieces a week for Medium. Make sure to follow him right here. He lives in Athens, Georgia, with his family and is the author of five books, including the upcoming novel How Lucky, released by Harper next May. He also writes a free weekly newsletter that you might enjoy.

In October of this year we came a step closer to realizing room temperature superconductors. Scientists created a material with no electrical resistance operating at 59° F (15° C). This material was made of hydrogen, carbon, and sulfur. The only downside is that the compound only maintained superconductivity at incredible pressures similar to those at the center of our planet. The goal now is to find a material that will be superconducting both at room temperatures and at normal atmospheric pressures.

As you can see above, creating buttons are a great example of this. Often a design system needs multiple types and combinations of buttons: large buttons, small buttons, buttons with icons, buttons in a hover state, buttons in an inactive state, and so on. Previously, it was incredibly difficult to swap between instances of a button, and it could only be done at the lowest grouping level.

There have been many changes in recent Android releases around protecting user data and giving users more control and transparency over how their data is accessed. One of the major areas of focus has been in location, as users may not want applications having access to that data, and may want to control that access very carefully.

Grouping similar components as variants in a component set is unbelievably useful when you’re using those components in your designs. Moreover, the benefits are compounded when you are designing complex screens across a range of devices.

That’s it for this time. So go MAD for App Bundles and Material Design Components! Check out next year’s requirements for App Bundles and Target API! Read the latest docs on Fragments and Kotlin flow! Check out the latest developer content on the Android Developers publication on Medium, the Android Developers Blog, and the Android Developers channel on YouTube! And come back here soon for the next update from the Android developer universe.

Tips for getting your app approved for background location access When it comes to privacy, we are committed to giving users control and transparency over data access. Users…android-developers.googleblog.com

Figma released an update last week to bring the Variants feature to everyone. Variants were first announced back in September, at Config Europe 2020. They’re now available to everyone using Figma in-browser or on the Desktop app.

Along those lines, Google Play policy will soon require that apps which need access to location while running in the background request permission (from the Play Store) for that access. This article details the process for requesting it.

Manuel Vivo posted a new video in the Kotlin Vocabulary series which discusses the use of Kotlin flow for emitting a stream of data. It builds on his earlier video, The ABC of Coroutines, so you might want to watch that one first to… get in the flow.

The future of Kotlin Android Extensions The Android Kotlin Extensions Gradle plugin (not to be confused with Android KTX) was released in 2017 and brought two…android-developers.googleblog.com

David Winer published a blog discussing Kotlin Synthetics as well as View Binding (both of which are mechanisms for eliminating those pesky findViewById() calls in your code). The article points out that synthetics will be deprecated in a future version of the Kotlin plugin (for reasons detailed in the article). The piece also discusses the @Parcelize extension, which will continue to be recommended and supported.

But perhaps the most exciting prospect of superconductors is in regards to energy. Power plants wouldn’t have to be built close to cities since so much energy would no longer be lost during transmission. This is safer for people and reduces pollution, not to mention that superconducting wires would save us billions of dollars. And what if powerful superconducting magnets could help start atomic fusion reactions? Well, that would mean an almost endless supply of cheap energy for the world. Using superconducting materials to achieve fusion is known as the high-field pathway. Already high-field fusion devices are giving incredible results: research shows they would produce more energy than they consume.

Variants are a way of grouping similar components together. You do this by selecting the components and combining them into something called a component set. Each component then becomes a variant in that component set.

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We know superconductors have potential. Though they seem something so nascent and sensational, they are not condemned to

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