"IOS Human Interface Guidelines"--launch Files

Startup file

The boot file (or picture) provides a simple bitmap for iOS display when your app launches. This bitmap will make the user feel that your app is responding quickly because it appears directly and will soon be replaced by your app's first screen. Each app must provide a startup file or at least one static picture.

In iOS 8 and later systems, you can create a xib or storyboard file instead of a static boot image. When you create a startup file in Interface Builder, use the dimension class to define different layouts for different display environments, and use auto layout to make small adjustments. Using the size class and auto layout means you can create a simple startup file that looks good in all devices and display environments. (see build in adaptivity for an overview of the display environment and dimension classes; see size Classes Design help Learn how to use dimension classes in Interface Builder.) ）

If you also need to support an earlier version of iOS, you can continue to provide a static boot image outside of the startup file.

IMPORTANT

Use the launch Xib or storyboard file to indicate that your app is running on iphone 6 Plus or Iphone6.

The following design guidelines apply to startup files and static boot pictures.

design a simple boot image that enhances the user experience. in particular, it's not a time to start a picture:

• An "app portal experience", such as a splash screen
• An "about" window
• Brand elements, unless they are the static part of your app's first interface

Because users may switch frequently between apps, you should try to minimize startup time and design a splash image instead of attracting attention.
design a startup image that is the same as the first one in the app,Apart from:

• text. the start picture is static, so any text you display should not be local.
• UI elements that might change. If you include elements that might look different when the app is launched, the user will feel the unpleasant flashes between the start image and the first app interface.

If you feel that following these guidelines will lead to plain, boring start-up pictures, you are right. Remember, starting a picture is not an opportunity to give you an artistic expression. It is only dedicated to enhancing the user's perception of your app through Quick start-up and immediate use. For example, settings and weather all provide a little more than a background map of the boot image.


If you need to use a static boot image, create a different size picture for different devices. The static boot picture for all devices must contain the status bar area. View icon and Image sizes for dimension information.
Even if it is best to use the boot file for iphone 6 and iphone 6 Plus, you can also provide a static boot image instead if necessary. If you need to create a static boot image for these devices, use the following dimensions:
For iphone 6:

• Vertical with 750*1334 (@2x)
• Level with 1334*750 (@2x)

For iphone 6 Plus:

• Vertical with 1242*2208 (@3x)
• Level with 2208*1242 (@3x)

This article is translated from the official Apple development document to view the integration set: Https://github.com/Cloudox/iOS-Human-Interface-Guidelines All rights reserved: Http://blog.csdn.net/cloudox_

"IOS Human Interface Guidelines"--launch Files