因为我可以将所有文件从一个目录移动到 Objective-C 中的另一个目录？

Question

因为我可以将所有文件从一个目录移动到另一个目录？我有我的代码可以单独移动它们，但我不能全部移动它们。

 NSError *error;
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0]; // Get documents folder
    NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"user"];

    if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath])
        [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:&error];



    NSString *oldPath = [NSString stringWithFormat:@"%@/user/%@", documentsDirectory, fileName];

     NSLog(@"copia de aqui %@", oldPath);
    NSString *newPath = [NSString stringWithFormat:@"%@/leidos/%@", documentsDirectory, fileName];
     NSLog(@"aqui aqui %@", newPath);

    [[NSFileManager defaultManager] moveItemAtPath:oldPath toPath:newPath error:nil];

Answer 1

您可以获取../user/ 目录中的所有文件并将它们的文件名存储到一个数组中。然后你可以遍历数组并将文件移动到新目录。

NSString *oldDirectory = [documentsDirectory stringByAppendingPathComponent:@"user"];
NSString *newDirectory = [documentsDirectory stringByAppendingPathComponent:@"leidos"];
NSFileManager *fm = [NSFileManager defaultManager];

// Get all the files at ~/Documents/user
NSArray *files = [fm contentsOfDirectoryAtPath:oldDirectory error:&error];

for (NSString *file in files) {
    [fm moveItemAtPath:[oldDirectory stringByAppendingPathComponent:file]
                toPath:[newDirectory stringByAppendingPathComponent:file]
                 error:&differentError];
}