IOS 从Resource文件夹下Copy文件到沙盒

 1 - (void)viewDidLoad
 2 {
 3     [super viewDidLoad];
 4     // Do any additional setup after loading the view.
 5     self.title =  @"拷贝文件到Sandbox";
 6     
 7     //文件类型
 8     NSString * docPath = [[NSBundle mainBundle] pathForResource:@"save1" ofType:@"dat"];
 9     
10     // 沙盒Documents目录
11 //    NSString * appDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
12     
13     // 沙盒Library目录
14     NSString * appDir = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) lastObject];
15     //appLib  Library/Caches目录
16     NSString *appLib = [appDir stringByAppendingString:@"/Caches"];
17     
18     BOOL filesPresent = [self copyMissingFile:docPath toPath:appLib];
19     if (filesPresent) {
20         NSLog(@"OK");
21     }
22     else
23     {
24         NSLog(@"NO");
25     }
26     
27     // 创建文件夹
28     NSString *createDir =  [NSHomeDirectory() stringByAppendingString:@"/test"];
29     [self createFolder:createDir];
30     
31     // 把文件拷贝到Test目录
32     BOOL filesPresent1 = [self copyMissingFile:docPath toPath:createDir];
33     if (filesPresent1) {
34         NSLog(@"OK");
35     }
36     else
37     {
38         NSLog(@"NO");
39     }
40 
41 
42 }
43 
44 /**
45  *    @brief    把Resource文件夹下的save1.dat拷贝到沙盒
46  *
47  *    @param     sourcePath     Resource文件路径
48  *    @param     toPath     把文件拷贝到XXX文件夹
49  *
50  *    @return    BOOL
51  */
52 - (BOOL)copyMissingFile:(NSString *)sourcePath toPath:(NSString *)toPath
53 {
54     BOOL retVal = YES; // If the file already exists, we'll return success…
55     NSString * finalLocation = [toPath stringByAppendingPathComponent:[sourcePath lastPathComponent]];
56     if (![[NSFileManager defaultManager] fileExistsAtPath:finalLocation])
57     {
58         retVal = [[NSFileManager defaultManager] copyItemAtPath:sourcePath toPath:finalLocation error:NULL];
59     }
60     return retVal;
61 }
62 
63 /**
64  *    @brief    创建文件夹
65  *
66  *    @param     createDir     创建文件夹路径
67  */
68 - (void)createFolder:(NSString *)createDir
69 {
70     BOOL isDir = NO;
71     NSFileManager *fileManager = [NSFileManager defaultManager];
72     BOOL existed = [fileManager fileExistsAtPath:createDir isDirectory:&isDir];
73     if ( !(isDir == YES && existed == YES) )
74     {
75         [fileManager createDirectoryAtPath:createDir withIntermediateDirectories:YES attributes:nil error:nil];
76     }
77 }