Apple Watch的预处理器宏？ [英] Preprocessor macro for Apple Watch?

问题描述

我正在查看Apple的 Lister（适用于Apple Watch，iOS和OS X）示例。该示例对iOS和OS X进行了测试：

I was looking at Apple's Lister (for Apple Watch, iOS, and OS X) sample. The sample performs a test for iOS and OS X:

#import <TargetConditionals.h>

#if (TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR)

@import ListerKit;

#elif TARGET_OS_MAC

@import ListerKitOSX;

#endif

但是，没有测试 TARGET_OS_WATCH 或类似名称。在 TargetConditionals.h 中为手表抓包不会带来任何成功：

However, there is no test for TARGET_OS_WATCH or similar. Grepping for watch in TargetConditionals.h delivers no hits:

$ cat /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer
  /SDKs/iPhoneOS7.1.sdk/usr/include/TargetConditionals.h | grep -i watch
$

来自 TargetConditionals.h ，我知道有：

    These conditionals specify in which Operating System the generated code will
    run. The MAC/WIN32/UNIX conditionals are mutually exclusive.  The EMBEDDED/IPHONE 
    conditionals are variants of TARGET_OS_MAC. 

        TARGET_OS_MAC           - Generate code will run under Mac OS
        TARGET_OS_WIN32         - Generate code will run under 32-bit Windows
        TARGET_OS_UNIX          - Generate code will run under some non Mac OS X unix 
        TARGET_OS_EMBEDDED      - Generate code will run under an embedded OS variant
                                  of TARGET_OS_MAC
        TARGET_OS_IPHONE        - Generate code will run under iPhone OS which 
                                  is a variant of TARGET_OS_MAC.
    TARGET_IPHONE_SIMULATOR     - Generate code for running under iPhone Simulator

问题：苹果手表是否有预处理器？

Question: Is there a preprocessor for Apple's watch?

我正在标记 ios ，但是我不确定这是该问题的正确操作系统。

I'm tagging with ios, but I'm not sure that's the correct OS for this question.

下面的列表是从iPhone的 TargetConditionals.h 编译而来的。 Simulator和OS X相似（只是将不同的位设置为1）：

The list below was compiled from iPhone's TargetConditionals.h. The Simulator and OS X are similar (they just have different bits set to 1):

#define TARGET_OS_MAC               1
#define TARGET_OS_WIN32             0
#define TARGET_OS_UNIX              0
#define TARGET_OS_EMBEDDED          1 
#define TARGET_OS_IPHONE            1 
#define TARGET_IPHONE_SIMULATOR     0 

问题：手表是否使用 TARGET_OS_EMBEDDED ？手表忽略 TARGET_OS_IPHONE 吗？

Questions: Does the watch use TARGET_OS_EMBEDDED? Does the watch omit TARGET_OS_IPHONE?

推荐答案

从watchOS 2.0开始，您可以在手表上运行本机代码，因此这是一个更相关的问题。

As of watchOS 2.0, you can run native code on the watch, so this is a more relevant question.

我正在使用watchOS 2的第一个早期Beta版，因此情况可能会有所变化，但现在 TARGET_OS_WATCH 在watchOS上设置为1。

I'm using the first early beta of watchOS 2, so this may change, but right now, TARGET_OS_WATCH is set to 1 on watchOS.

（此外，请注意： TARGET_OS_IPHONE 在watchOS上也设置为1，尽管 TARGET_OS_IOS 为0。）

(Also, be careful: TARGET_OS_IPHONE is also set to 1 on watchOS, though TARGET_OS_IOS is 0.)

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