沙盒路径(Objc)

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
//    数据是写在Library->Preferences下
    NSUserDefaults *defaults1 = [NSUserDefaults standardUserDefaults];
    NSLog(@"%p",defaults1);
    NSUserDefaults *defaults2 = [NSUserDefaults standardUserDefaults];
    NSLog(@"%p",defaults2);
    
    NSUserDefaults *defaults3 = [[NSUserDefaults alloc]init];
    NSLog(@"%p",defaults3);
    
    NSArray *tempArray = @[@"1",@"2"];
    [defaults1 setObject:tempArray forKey:@"array"];
    
//  1、获取程序的Home目录
//    NSString *homeDirectory = NSHomeDirectory();
//    NSLog(@"path:%@", homeDirectory);
    
//    2、获取document目录
//    NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//    NSString *documentPath = [documentPaths objectAtIndex:0];
//    NSLog(@"path:%@", documentPath);
    
//    3、获取Cache目录    
//    NSArray *CachePaths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
//    NSString *CachePath = [CachePaths objectAtIndex:0];
//    NSLog(@"%@", CachePath);
    
//    4、获取Library目录
//    NSArray *LibraryPaths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
//    NSString *LibraryPath = [LibraryPaths objectAtIndex:0];
//    NSLog(@"%@", LibraryPath);
    
//    5、获取Tmp目录
//    NSString *tmpDir = NSTemporaryDirectory();
//    NSLog(@"%@", tmpDir);
    
//    6、写入文件
//    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//    NSString *docDir = [paths objectAtIndex:0];
//    NSLog(@"%@",docDir);
//    if (!docDir) {
//        NSLog(@"Documents 目录未找到");
//    }
//    NSArray *contentArray = [[NSArray alloc] initWithObjects:@"内容",@"content",nil];
//    NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];
//    [contentArray writeToFile:filePath atomically:YES];
    
    
//    7、读取文件
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *docDir = [paths objectAtIndex:0];
    NSString *filePath = [docDir stringByAppendingPathComponent:@"testFile.txt"];
    NSLog(@"%@",filePath);
    NSArray *array = [[NSArray alloc]initWithContentsOfFile:filePath];
    NSLog(@"%@", array);
    
    
//    8、判断一个文件是否存在,传入全路径(fileExistsAtPath)
//    // 创建文件管理器
//    NSFileManager * fileManager = [NSFileManager defaultManager];
//    
//    NSString * documents = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)lastObject];
//    NSString * filePath = [documents stringByAppendingPathComponent:@"test"];
//    
//    // 判断一个文件是否存在,传入全路径
//    if ([fileManager fileExistsAtPath:filePath]) {
//        NSLog(@"it is exit");
//    }
    
    
//    9、在Documents里创建目录
//    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//    NSString *documentsDirectory = [paths objectAtIndex:0];
//    NSLog(@"documentsDirectory%@",documentsDirectory);
//    NSFileManager *fileManager = [NSFileManager defaultManager];
//    NSString *testDirectory = [documentsDirectory stringByAppendingPathComponent:@"test"];
//    // 创建目录
//    [fileManager createDirectoryAtPath:testDirectory withIntermediateDirectories:YES attributes:nil error:nil];
    
    
//    10、在目录下创建文件
//    NSString *testPath = [testDirectory stringByAppendingPathComponent:@"test00.txt"];
//    NSString *testPath2 = [testDirectory stringByAppendingPathComponent:@"test22.txt"];
//    NSString *testPath3 = [testDirectory stringByAppendingPathComponent:@"test33.txt"];
//    NSString *string = @"写入内容，write String";
//    [fileManager createFileAtPath:testPath contents:[string  dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
//    [fileManager createFileAtPath:testPath2 contents:[string  dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
//    [fileManager createFileAtPath:testPath3 contents:[string  dataUsingEncoding:NSUTF8StringEncoding] attributes:nil];
    
    
//    11、获取目录列里所有文件名
//    两种方法获取：subpathsOfDirectoryAtPath 和subpathsAtPath
//    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//    NSString *documentsDirectory = [paths objectAtIndex:0];
//    NSLog(@"documentsDirectory%@",documentsDirectory);
//    NSFileManager *fileManage = [NSFileManager defaultManager];
//    NSString *myDirectory = [documentsDirectory stringByAppendingPathComponent:@"test"];
//    NSArray *file = [fileManage subpathsOfDirectoryAtPath: myDirectory error:nil];
//    NSLog(@"%@",file);
//    NSArray *files = [fileManage subpathsAtPath: myDirectory ];
//    NSLog(@"%@",files);
    
    
//    12、fileManager使用操作当前目录    
//    //创建文件管理器
//    NSFileManager *fileManager = [NSFileManager defaultManager];
//    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//    NSString *documentsDirectory = [paths objectAtIndex:0];
//    //更改到待操作的目录下
//    [fileManager changeCurrentDirectoryPath:[documentsDirectory stringByExpandingTildeInPath]];
//    //创建文件fileName文件名称，contents文件的内容，如果开始没有内容可以设置为nil，attributes文件的属性，初始为nil
//    NSString * fileName = @"testFileNSFileManager.txt";
//    NSArray *array = [[NSArray alloc] initWithObjects:@"hello world",@"hello world1", @"hello world2",nil];
//    [fileManager createFileAtPath:fileName contents:array attributes:nil];  
    
//    13、删除文件    
//    [fileManager removeItemAtPath:fileName error:nil];
    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end