Google Duo 是一款简单易用的高品质视频通话应用，适合所有人。在新冠肺炎 (COVID-19) 疫情期间，随着居家人数增加，Duo 团队发现，使用 Duo 与亲朋好友、学校和单位保持联系的用户也大幅增加。该团队致力于在所有平台和平台上打造出色的体验。考虑到平板电脑和可折叠设备在市场中的巨大增长，以及它们在 Duo 用户中的普及，他们发现有机会改善平板电脑和可折叠设备的体验。
此后，该团队考虑了用户在各种尺寸的屏幕上与 Duo 的互动情况。虽然滑动接听来电的功能在手机上运行良好，但开发团队通过测试发现，该功能在平板电脑或可折叠设备上并效果不佳。有些 Duo 用户无意中接听电话，不得不快速挂断电话。该团队通过在平板电脑上实现按钮并在可折叠设备上实现双滑板优化了大屏幕体验。在改进界面的过程中，该团队一直在密切监控行为变化。结果发现，在这些设备上的意外简短通话减少，通话时间增加。经过此次界面调整，Duo 的用户获得了更顺畅的通话体验。
[null,null,["最后更新时间 (UTC)：2021-05-18。"],[],[],null,["# Google Duo sees increased engagement and improved ratings by optimizing for larger screens\n\n[Google Duo](https://play.google.com/store/apps/details?id=com.google.android.apps.tachyon) is a simple, high quality video calling app for everyone. With the increase of people being at home during the Covid-19 pandemic, the Duo team saw a significant increase in people using the app to stay connected with friends \\& family, school and work. The team strives to build great experiences across all platforms and surfaces, and saw an opportunity to improve the experience for tablets and foldable devices given the huge growth of these devices in the market, and the prevalence of them amongst Duo users. \n\n*Google Duo on the Samsung Galaxy Z Fold2*\n\nWhat they did\n-------------\n\nThe team started by thinking about the unique experience they can provide users with foldables. They wanted to design for each [posture](https://developer.android.com/guide/topics/ui/foldables#postures) to make sure the app experience is optimal across them. *\"All of our support is within the same application, we configure for different devices based on different widths and heights.\" - Oren Freiberg, Software Engineer*\n\nAs one of the first optimizations, they removed all small buttons from the middle of the screen to avoid users having to press buttons within the crease, using the [WindowManager](https://developer.android.com/reference/androidx/window/WindowManager) and [FoldingFeature](https://developer.android.com/reference/androidx/window/FoldingFeature) Jetpack libraries to redesign the UI and create a tabletop experience for calls. This enabled callers to be shown on the top screen of the foldable, while the bottom screen displayed all of the controls and menu items, which is a **huge improvement for the user experience.** \n\nAfter this, the team thought about user interactions with Duo across all screen sizes. While swiping to answer a call works really well on a phone, the development team learned through testing that this didn't work as well on a tablet or foldable. Some Duo users were unintentionally answering phone calls and having to hang up quickly. The team optimized the larger screen experience by implementing buttons on tablets, and dual sliding pucks on foldables.The team was closely monitoring behavior changes as part of this UI improvement, and saw a **decrease in unintentional brief calls on these devices, as well as an increase in call time** on these devices. This UI tweak enabled Duo's users to have a more seamless calling experience. \n\nResults\n-------\n\nThe investment in optimizing for tablets and foldables led to a better experience for users on larger screens, which led to an **improvement in the average app ratings for optimized tablets by half a point.** App engagement improved as well as call time on tablets and foldables increased after these changes. Upgrading the experience and look \\& feel was critical to the business as communication apps are taking off on larger screens, and it's important to optimize these experiences to stay competitive. The Duo team plans on continuing to optimize the experience across all form factors.\n\nGet Started\n-----------\n\nLearn more about how you can get started with [optimizing your app for larger screens](https://developer.android.com/guide/topics/ui/nff-overview)."]]
