如何在C ++中创建Cocoa对象？ [英] How to create Cocoa objects in C++?

问题描述

有可能和如何创建类的对象，如NSString从C ++代码？

Is it possible and how to create objects of such classes like NSString from C++ code?

推荐答案

选项：

1）如果你主要是用C ++编写的，想要与一个期望可可字符串和集合的API进行通信，那么Core Foundation是一个C C ++）api用于创建和交互许多Foundation的类。

1) If you're mainly writing in C++ and want to communicate with an API that expects cocoa strings and collections, then Core Foundation is a C (and therefore C++) api for creating and interacting with many of Foundation's classes. Many NS-prefixed cocoa classes have a CF-prefixed equivalent, and can be used interchangeably.

2）如果你将c ++代码和objective-c代码集成在一起，那么，你可以选择将接口类编译为objective-c ++，它允许你在同一个源文件中混合。因此，有效的是做 vector.push_back（[NSString stringWithFormat：@string]）

2) If you're integrating c++ code with objective-c code, then you have the option of compiling the interface classes as objective-c++ which allows you to mix both in the same source file. So it's valid to do stuff like vector.push_back( [NSString stringWithFormat:@"string"] )

3 ）通过包括< objc / runtime.h> ，可以访问（接近）整个目标c语言作为C运行时库。我不能真正想到一个很好的理由，使用这一个其他2，但如果有一个很好的理由，你不能这是值得铭记。

3) It is possible to access (near enough) the whole objective-c language as a C runtime library by including <objc/runtime.h>. I can't actually think of a good reason for using this over one of the other 2, but it might be worth keeping in mind if there's a good reason you can't.

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