文件管理NSFileManager

//NSFileManager

- (void)viewDidLoad {

[super viewDidLoad];

NSLog(@"%@",NSHomeDirectory());

NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];

NSString *filePath = [docPath stringByAppendingPathComponent:@"firstFM"];

NSFileManager *fm = [NSFileManager defaultManager];

//一.创建

//1.创建文件夹

if (![fm fileExistsAtPath:filePath]) {

NSError *error = nil;

BOOL isSuc = [fm createDirectoryAtPath:filePath withIntermediateDirectories:YES attributes:nil error:&error];

if (!isSuc) {

NSLog(@"fail:%@",error.localizedDescription);

}

}else{

NSLog(@"file existed");

}

//2.创建文件

NSString *txtPath = [filePath stringByAppendingPathComponent:@"firstTxt.txt"];

NSString *test    = @"hello world";

NSData  *writeData= [test dataUsingEncoding:NSUTF8StringEncoding];

if (![fm fileExistsAtPath:txtPath]) {

BOOL isSuc = [fm createFileAtPath:txtPath contents:writeData attributes:nil];

if (!isSuc) {

NSLog(@"fail");

}

}else{

NSLog(@"txt existed");

}

//1.

//    [self scanDirectoryOrFile:filePath];

//2.

NSString *sourcePath = txtPath;

NSString *newPath = [docPath stringByAppendingPathComponent:@"firstTxt.txt"];

//    [self moveDiectoryOrFile:sourcePath toNewPath:newPath];

//    [self deleteDirectoryOrFile:[docPath stringByAppendingPathComponent:@"rrr"]];

[self attributeForDirectoryOrFile:newPath];

}

//二.操作

//1.遍历文件夹(目录)

- (void)scanDirectoryOrFile:(NSString *)path{

NSFileManager *fm = [NSFileManager defaultManager];

//浅层遍历(只包含当前路径的子目录)

if ([fm fileExistsAtPath:path]) {

//数组包含的是文件夹的名字

NSArray *arr1 = [fm contentsOfDirectoryAtPath:path error:nil];

NSLog(@"%ld--%@",arr1.count,arr1.firstObject);

}

//深层遍历(包含路径下所有子文件)

//    if ([fm fileExistsAtPath:path]) {

//        NSArray *arrAll = [fm subpathsOfDirectoryAtPath:path error:nil];

//    }

}

//2.拷贝

- (void)copyDirectoryOrFile:(NSString *)sourcePath toNewPath:(NSString *)newPath{

NSFileManager *fm = [NSFileManager defaultManager];

NSError *error = nil;

BOOL isSuc = [fm copyItemAtPath:sourcePath toPath:newPath error:&error];

if (isSuc) {

NSLog(@"success");

}else{

NSLog(@"%@",error.localizedDescription);

}

}

//3.移动(剪切)

- (void)moveDiectoryOrFile:(NSString *)sourcePath toNewPath:(NSString *)newPath{

NSFileManager *fm = [NSFileManager defaultManager];

NSError *error = nil;

BOOL isSuc = [fm moveItemAtPath:sourcePath toPath:newPath error:&error];

if (isSuc) {

NSLog(@"success");

}else{

NSLog(@"%@",error.localizedDescription);

}

}

//4.删除

- (void)deleteDirectoryOrFile:(NSString *)path{

NSFileManager *fm = [NSFileManager defaultManager];

NSError *error = nil;

BOOL isSuc = [fm removeItemAtPath:path error:nil];

if (isSuc) {

NSLog(@"success");

}else{

NSLog(@"%@",error.localizedDescription);

}

}

//三.获取文件属性

- (void)attributeForDirectoryOrFile:(NSString *)path{

NSFileManager *fm = [NSFileManager defaultManager];

NSError *error = nil;

NSDictionary *dic = [fm attributesOfItemAtPath:path error:&error];

NSLog(@"%@",dic);

}