IOS沙盒机制和文件操作（2）

1.    在document里创建目录

//获取当前程序的document的路径

       NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);

    NSString *documentDirectory = [paths objectAtIndex:0];

    NSLog(@"当前程序的document目录%@",documentDirectory);

    //创建文件管理器

    NSFileManager *fileManager = [NSFileManager defaultManager];

    //myTest的路径

    NSString *myTestDirectory = [documentDirectory stringByAppendingPathComponent:@"myTest"];

    //创建目录

[fileManager createDirectoryAtPath:myTestDirectory withIntermediateDirectories:YES attributes:nil error:nil];

输出：2013-12-15 19:49:57.294 a[1074:c07] 当前程序的document目录/Users/haixia/Library/ApplicationSupport/iPhoneSimulator/6.1/Applications/B89BC296-EB87-4789-A497-914C3DF8FB55/Documents

 

   

2.    在刚刚创建的目录下创建文件

  //在myTest目录下创建文件

    //文件的路径

    NSString*testPsth1 = [myTestDirectory stringByAppendingPathComponent:@"tsst1.txt"];

    NSString*testPath2 = [myTestDirectory stringByAppendingPathComponent:@"test2.txt"];

    NSString*testPath3 = [myTestDirectory stringByAppendingPathComponent:@"test3.txt"];

    //写入的内容

    NSString *string= @"hello,1234567";

    //创建文件

    [fileManager createFileAtPath:testPsth1contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];

    [fileManager createFileAtPath:testPath2contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];

    [fileManager createFileAtPath:testPath3contents:[string dataUsingEncoding:NSUTF8StringEncoding]attributes:nil];

3.    获取目录列表里的所有文件

 //获取目录列表里的所有文件

    //NSArray *file = [fileManagersubpathsAtPath:myTestDirectory];

    NSArray *file = [fileManager subpathsOfDirectoryAtPath:myTestDirectory error:nil];

    NSLog(@"%@",file);

    NSArray *files = [fileManager subpathsAtPath:myTestDirectory];

    NSLog(@"%@",files);

//   2013-12-15 20:16:31.041 a[1208:c07] 当前程序的document目录/Users/haixia/Library/ApplicationSupport/iPhoneSimulator/6.1/Applications/B89BC296-EB87-4789-A497-914C3DF8FB55/Documents

//   2013-12-15 20:16:31.046 a[1208:c07] (

//                                        ".DS_Store",

//                                        "test2.txt",

//                                        "test3.txt",

//                                        "tsst1.txt"

//                                         )

//   2013-12-15 20:16:31.047 a[1208:c07] (

//                                        ".DS_Store",

//                                        "test2.txt",

//                                        "test3.txt",

//                                         "tsst1.txt"

//                                         )

转载自http://blog.csdn.net/haixialu/article/details/17383593