ios - 以编程方式创建目录

Question

我想在我的 applicationSupportDirectory 中创建一个目录。我的理解是 applicationSupportDirectory 不允许用户查看其中的数据。这就是我选择它的原因。但是，我在下面使用的代码似乎失败了，我不确定为什么。

谁能告诉我我做错了什么？谢谢!

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory,   NSUserDomainMask, YES);
NSString *applicationDirectory = [paths objectAtIndex:0]; // Get directory
NSString *dataPath = [applicationDirectory stringByAppendingPathComponent:@"drawings"];

if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]){

NSError* error;
if([[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error])
  ;// success
else
{
  NSLog(@"Failed");
}
}
}

Answer 1

试试这个，它对我有用。

NSString* documentsPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                              NSUserDomainMask,
                                                              YES)[0];
NSString *folder = [documentsPath stringByAppendingPathComponent:@"foldername"];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error = nil;
if (![fileManager fileExistsAtPath:folder]){
    [fileManager createDirectoryAtPath:folder
           withIntermediateDirectories:YES
                            attributes:nil
                                 error:&error];
}