iphone - 在 iPhone 中创建一个目录

Question

那有什么问题？

#define AUDIO_NOTES_FOLDER [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/myApp/Pictures"]

NSFileManager *NSFm= [NSFileManager defaultManager]; 
BOOL isDir=YES;

if(![NSFm fileExistsAtPath:FILEPATH isDirectory:&isDir])
    if(![NSFm createDirectoryAtPath:FILEPATH attributes:nil])
        NSLog(@"Error: Create folder failed");

Answer 1

createDirectoryAtPath:attributes:已弃用，您应该使用：

    NSString *dirToCreate = [NSString stringWithFormat:@"%@/newDirectory",[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]];
    NSError *error = nil;
    BOOL isDir;
    if(![fm fileExistsAtPath:dirToCreate isDirectory:&isDir])
        if(![fm createDirectoryAtPath:dirToCreate withIntermediateDirectories:YES attributes:nil error:&error])
            NSLog(@"Error: Create folder failed");

Answer 2

FILEPATH 令牌未定义 - 您#define AUDIO_NOTES_FOLDER在文件的开头，然后FILEPATH在您的代码中使用。

另请注意， NSHomeDirectory() 不一定是推荐的查找 Documents 目录的方法 - 相反，您可能想要：

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];