在 App Store 上发布独立的消息扩展时，我需要 iOS 个应用程序屏幕截图吗？
When releasing standalone messages extension on app store do I need iOS app screenshots?
我将在应用商店中发布一个独立的 iOS 消息扩展，这意味着没有 iOS 应用与之配套。我是否必须包含 iOS 应用程序的屏幕截图，或者我是否可以只添加消息扩展程序的屏幕截图？
谢谢
如果您没有 iOS 应用，您将如何为 iOS 应用添加屏幕截图？
另外：
For all iMessage apps and iOS extensions, provide separate sets of screenshots of your iMessage content for iPhone 6 Plus and iPad Pro. These screenshots will be used across device sizes. You can upload up to five screenshots per set to showcase the iMessage experience. You will need to upload your screenshots to both the App Preview and Screenshots section and the iMessage section of your app’s version page in My Apps on iTunes Connect.
When showing conversations in Messages, make sure the information and accounts you display are not real. Do not display phone numbers. For screenshot specifications, see the iTunes Connect Developer Guide.
来源：https://developer.apple.com/app-store/imessage-app-submissions/
我将在应用商店中发布一个独立的 iOS 消息扩展，这意味着没有 iOS 应用与之配套。我是否必须包含 iOS 应用程序的屏幕截图，或者我是否可以只添加消息扩展程序的屏幕截图？
谢谢
如果您没有 iOS 应用，您将如何为 iOS 应用添加屏幕截图？
另外：
For all iMessage apps and iOS extensions, provide separate sets of screenshots of your iMessage content for iPhone 6 Plus and iPad Pro. These screenshots will be used across device sizes. You can upload up to five screenshots per set to showcase the iMessage experience. You will need to upload your screenshots to both the App Preview and Screenshots section and the iMessage section of your app’s version page in My Apps on iTunes Connect. When showing conversations in Messages, make sure the information and accounts you display are not real. Do not display phone numbers. For screenshot specifications, see the iTunes Connect Developer Guide.
来源：https://developer.apple.com/app-store/imessage-app-submissions/