沙盒文件以及文件夹操作

灰太狼 2023-10-17 05:24 31阅读 0赞

- (void)viewDidLoad {
        [super viewDidLoad];
        NSLog(@"%@",NSHomeDirectory());
        
    }
    
    - (IBAction)createFileClick:(UIButton *)sender {
            //NSFileManager文件管理器,单例类
        NSFileManager *manager = [NSFileManager defaultManager];
        NSString *path = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/file1.txt"];
            //createFileAtPath创建一个文件，第一个参数是创建的路径，第二个参数是文件内容，第三个参数是文件属性。
        if ([manager createFileAtPath:path contents:nil attributes:nil]) {
            NSLog(@"创建成功");
        }else{
            NSLog(@"创建失败");
        }
    }
    
    - (IBAction)deleteFileClick:(UIButton *)sender {
        NSError *error = nil;
            //removeItemAtPath删除一个文件或文件夹,第一个参数是要删除的文件的路径，第二个参数是如果删除失败，失败的原因。
        if (![[NSFileManager defaultManager] removeItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/file1.txt"] error:&error]) {
            NSLog(@"%@",error);
        }
    }
    
    - (IBAction)createDirectoryClick:(UIButton *)sender {
        NSString *dirPath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/123/456"];
            //createDirectoryAtPath创建一个文件夹，第一个参数是创建的文件夹的路径，第二个参数是是否自动创建路径中不存在的文件夹。
        [[NSFileManager defaultManager] createDirectoryAtPath:dirPath withIntermediateDirectories:YES attributes:nil error:nil];
    }
    
    - (IBAction)copyFileClick:(UIButton *)sender {
            //赋值一个文件，第一个参数是要复制的文件的路径，第二个参数是复制目标路径(必须添加新的文件名)。
        [[NSFileManager defaultManager] copyItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/file1.txt"] toPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/123/456/copyedFile.txt"] error:nil];
    }
    
    - (IBAction)moveFileClick:(UIButton *)sender {
        [[NSFileManager defaultManager] moveItemAtPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/123/456/copyedFile.txt"] toPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/123/copyedFile.txt"] error:nil];
    }
    
    - (IBAction)isFileExistClick:(UIButton *)sender {
            //fileExistsAtPath判断一个文件或文件夹是否存在，isDirectory路径目标是文件还是文件夹。
        BOOL isDirectory;
        if ([[NSFileManager defaultManager] fileExistsAtPath:[NSHomeDirectory() stringByAppendingPathComponent:@"Documents/456"] isDirectory:&isDirectory]) {
            NSLog(@"存在");
            if (isDirectory) {
                NSLog(@"是文件夹");
            }else{
                NSLog(@"是文件");
            }
        }else{
            NSLog(@"不存在");
        }
    }

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