如何以编程方式查找OS X应用程序包的驻留目录 [英] How to find the residing directory of a OS X application package - programmatically

问题描述

我有一个OS X应用程序作为一个.app包，可以驻留在任何
任意位置的文件系统。有没有办法以编程方式从程序中找到
当前路径。

注意

getcwd（）不工作，因为打开的所有包的当前目录
是通过点击打开或使用打开命令是/。如果我从myapp.app/Contents/MacOS调用可执行文件
，目录显示正确。

这是一个可可应用程序。

任何线索？

解决方案

您应该可以通过 [[NSBundle mainBundle] bundleURL]; 或 [[NSBundle mainBundle] bundlePath ]; 。

但是，您可能需要通过 NSBundle 如果您打算修改本地化问题，应用程序包; 不要。 您不应该，不能，也不能假设您对应用程序包有写访问权限;

编辑：作为一个兴趣点，如果你是在操作系统上编写一个C程序X并需要找到可执行文件的位置;你可以使用一个非可移植的主要声明如下：

  int main（int argc，const char * argv []，const char * env []，const char * path []）{
 // path [0]现在包含可执行文件的路径
 // NOT PORTABLE！ OS X ONLY！ 
 return 0; 
} 
  

I have a OS X application as a .app package which can reside in any arbitrary location in the filesystem. Is there a way to find the current path of the package programmatically from with.

NOTE

getcwd() doesn't work since the current directory of all packages opened is via click-open or using the open command is "/" . If i invoke the executable from myapp.app/Contents/MacOS , the directory is shown correctly. It is a cocoa application.

Any clues?

解决方案

You should be able to find the location of the .app by [[NSBundle mainBundle] bundleURL]; or [[NSBundle mainBundle] bundlePath];.

However, you probably want to access resources inside the .app by going through NSBundle to locate them in most cases (this deals with issues like localization).

Note: If you are planning to modify the application bundle; don't. You should not, can not and must not assume that you have write access to the application bundle; and if you do, something is likely very wrong.

Edit: As a point of interest, if you are writing a C program on OS X and need to find the location of the executable; you can use a non-portable main declaration like so:

int main (int argc, const char *argv[], const char *env[], const char *path[]) {
  // path[0] now contains the path to the executable
  // NOT PORTABLE! OS X ONLY!
  return 0;
}

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