iOS7和Apple Watch [英] iOS7 and Apple Watch

问题描述

我有一个最低iOS目标iOS7的应用。

I have a app with the minimum iOS target iOS7.

我正在考虑为苹果手表添加一些额外的功能。 Theres是将iOS7维持为最低目标的任何选项，如果应用程序在iOS 8上运行，仍然可以添加对Apple Watch的支持吗？类似于iOS8的扩展/小部件。

I am considering in add some extra features with the apple watch. Theres is any option to maintain the iOS7 as the minimum target and still add support for apple watch if the app is running on a iOS 8? Something like the extensions/widgets of the iOS8.

提前致谢

推荐答案

您可以将部署目标设置为iOS7.x，并确保针对iOS8.2 SDK进行构建。您需要在构建设置中将框架设置为可选（弱链接）并执行运行时检查以确保您不会在iOS7.x上尝试使用它们设备。

You can set your deployment target to iOS7.x and make sure you build against iOS8.2 SDK. You will need to set the frameworks as optional (weak linking) in your build settings and perform run time checks to ensure you don't attempt anything with them on an iOS7.x device.

在框架未链接的应用中，可选框架将解析为 nil 。

Optional frameworks will resolve as nil in an app where the framework is not linked.

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