ObjectiveC 文件夹操作

创建文件夹

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];
BOOL isDir = NO;
NSFileManager *fileManager = [NSFileManager defaultManager];
BOOL existed = [fileManager fileExistsAtPath:imageDir isDirectory:&isDir];
if ( !(isDir == YES && existed == YES) )
{
  [fileManager createDirectoryAtPath:imageDir withIntermediateDirectories:YES attributes:nil error:nil];
}

删除文件夹及其内部文件

NSString *imageDir = [NSString stringWithFormat:@"%@/Caches/%@", NSHomeDirectory(), dirName];
NSFileManager *fileManager = [NSFileManager defaultManager];
[fileManager removeItemAtPath:imageDir error:nil];

遍历目录下所有文件

 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *docDir = [paths objectAtIndex:0];
    
    NSString *dirName = @"point";
    NSString *pointDir = [docDir stringByAppendingPathComponent:dirName];
    
    NSFileManager *manager = [NSFileManager defaultManager];
    
    NSArray *arr = [manager contentsOfDirectoryAtPath:pointDir error:nil];
    // arr中存储的是当前目录下所有的文件