启动页设计是用户对应用的首次体验。

The launch screen is a user’s first experience of your app.


用法

用途

加载应用程序时,启动页用来降低用户等待加载时的焦虑,设计优秀的启动页还有可能为用户带来愉悦的体验。

应用在后台正常运行时,再次进入应用无需启动页。

Launch screens can be displayed upon an app’s launch from the home screen when an app loads, instead of displaying a blank screen. Displaying a launch screen can decrease the sense of a long load time, and has the potential to add delight to the user experience.

Launch screens shouldn’t be displayed if an app is running.

分类

常见的启动页有两种:

  • 占位符 UI,用户第一次启动应用时可以对应用程序加载完成时的 UI布局(通过预设的占位符组件进行展示,不可交互)进行预览。这种启动页适用于需要通过占位符 UI 来完成对程序加载的过渡或者应用内部的页面切换。
  • 品牌启动页,在启动时就可以对自己的品牌特色进行宣传。

There are two types of launch screens:

  • Placeholder UI launch screens display a non-interactive preview of the app’s actual UI. This launch screen is appropriate for both app launches and activity transitions within an app.
  • Branded launch screens provide momentary brand exposure.

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品牌启动页 占位符 UI


占位符 UI

用法

对于加载时间短或者不需要进行品牌推广的应用,占位符 UI 可以在用户启动应用之后在很短的时间内进入应用。

通过占位符 UI 能够极大降低用户进入应用的时间(假性提升响应速度)。

For apps with short loading times, or that aren’t promoting branding, a placeholder UI displays the fewest possible shifts from the launch screen to the app. Additionally, placeholder UIs have a higher perceived response time.
启动页 - 图2
占位符 UI 设计。


表现

在启动应用时,直到应用加载结束,核心的结构性元素(例如 状态栏、应用栏以及底部导航等)将不会显示内容。通过微妙的动效来让占位符 UI 被加载完成后的内容替代。

On launch, core structural elements – such as the status bar, app bar, and bottom sheet – are displayed without content until the app has loaded.

Placeholder elements, with subtle animation, should be displayed in locations where content will load. mio-staging_mio-design_1579302979877_assets_1gWPXuVXFU6tPltbDQTIqsv1y5Gexcrtc_02-fortnightly-loading-do.mp4正确
在占位符 UI 加载完成之前,显示品牌指示符。应用加载完成,替代占位符 UI 时,使用淡入淡出的动效进行过渡。

A branded indicator is displayed until a placeholder UI loads. Content loads using a subtle fade transition.

mio-staging_mio-design_1579302979877_assets_1YSAkc9Vt7B_qGw5dkr8Usidpp9yTV2nS_02-fortnightly-loading-dont.mp4错误
加载时,进展指标过多会分散用户的注意力。

Don’t display multiple progress indicators, which divide focus.

占位符元素应保持在将加载内容的位置,以避免位置发生意外变化。

Placeholder elements should remain positioned where content will load to avoid unexpected shifts in positioning.

mio-staging_mio-design_1579302979877_assets_1VKtsLfdPFIbSxbsdZ6Ingj9G1EB6Z8-C_02-fortnightly-loadinglayout-dont.mp4错误
在加载完成时,不要改变原有的占位符 UI 排版。

Don’t display content that rearranges itself instantly as it loads, as this can produce a jarring experience.


品牌启动页

用法

品牌启动页 在启动引用时,通过显示 logo 或其它可提高品牌知名度的元素来推广自己的品牌。

除了 logo 和 slogen 外,避免在启动页上使用文字。

Branded launch screens express branding while an app loads, by displaying a logo or other elements that improve brand recognition. Avoid using text on this screen except your logo and, if applicable, a tagline.
image.png

品牌启动页示例。

image.png
启动页 - 图8