1 + (NSFileManager *)getNSFileManager 2 { 3 // iNSFileManager是一个静态变量 4 if (!iNSFileManager) 5 { 6 iNSFileManager = [NSFileManager defaultManager]; 7 } 8 return iNSFileManager; 9 } 10 11 #pragma mark 判断文件是否存在 12 13 + (BOOL)fileExistsAtPath:(NSString *)aPath 14 { 15 BOOL result = NO; 16 if (aPath) 17 { 18 result = [[self getNSFileManager] fileExistsAtPath:aPath]; 19 20 } 21 return result; 22 } 23 24 + (BOOL)fileExistsAtDocumentsWithFileName:(NSString *)aFileName{ 25 BOOL result = NO; 26 if (aFileName) 27 { 28 NSString *fullFileName = [self getFullDocumentPathWithName:aFileName]; 29 WALog(fullFileName); 30 31 result = [[self getNSFileManager] fileExistsAtPath:fullFileName]; 32 } 33 return result; 34 } 35 36 37 #pragma mark 判断文件夹是否存在 38 + (BOOL)dirExistsAtPath:(NSString *)aPath 39 { 40 BOOL isDir = NO; 41 BOOL result = [[self getNSFileManager] fileExistsAtPath:aPath 42 isDirectory:&isDir]; 43 return result && isDir; 44 } 45 46 #pragma mark 获取上级目录 47 + (NSString *) getParentPath:(NSString *)aPath 48 { 49 return [aPath stringByDeletingLastPathComponent]; 50 51 } 52 53 #pragma mark 创建目录的上级目录 54 + (BOOL)createParentDirectory:(NSString *)aPath 55 { 56 //存在上级目录，并且上级目录不存在的创建所有的上级目录 57 BOOL result = NO; 58 NSString *parentPath = [self getParentPath:aPath]; 59 if (parentPath && ![self dirExistsAtPath:parentPath]) 60 { 61 result = [[self getNSFileManager] createDirectoryAtPath:parentPath 62 withIntermediateDirectories:YES 63 attributes:nil 64 error:nil]; 65 } 66 else if ([self dirExistsAtPath:parentPath]){ 67 result = YES; 68 } 69 return result; 70 } 71 72 #pragma mark 创建目录 73 + (BOOL)createPath:(NSString *)aPath 74 { 75 NSFileManager *tempFileManager = [self getNSFileManager]; 76 BOOL result = NO; 77 result = [self createParentDirectory:aPath]; 78 if (result) 79 { 80 result = [tempFileManager createDirectoryAtPath:aPath 81 withIntermediateDirectories:YES 82 attributes:nil 83 error:nil]; 84 85 } 86 return result; 87 } 88 89 #pragma mark 目录下创建文件 90 + (BOOL)createFileWithPath:(NSString *)aPath content:(NSData *)aContent 91 { 92 NSFileManager *tempFileManager = [self getNSFileManager]; 93 BOOL result = NO; 94 result = [self createParentDirectory:aPath]; 95 if (result) 96 { 97 result = [tempFileManager createFileAtPath:aPath 98 contents:aContent 99 attributes:nil]; 100 } 101 return result; 102 } 103 104 #pragma mark documents下创建文件 105 + (BOOL)createFileAtDocumentsWithName:(NSString *)aFilename 106 content:(NSData *)aContent 107 { 108 NSString *filePath =[self getFullDocumentPathWithName:aFilename]; 109 BOOL result = [self createFileWithPath:filePath 110 content:aContent]; 111 return result; 112 } 113 114 + (NSString *)createFileAtTmpWithName:(NSString *)aFilename 115 content:(NSData *)aContent 116 { 117 NSString *filePath =[self getFullTmpPathWithName:aFilename]; 118 BOOL result = [self createFileWithPath:filePath 119 content:aContent]; 120 if(!result) 121 { 122 filePath = nil; 123 } 124 return filePath; 125 126 } 127 128 + (NSString *)createFileWithName:(NSString *)aFilename 129 content:(NSData *)aContent 130 { 131 NSString *filePath =[self getFullDocumentPathWithName:aFilename]; 132 BOOL result = [self createFileWithPath:filePath 133 content:aContent]; 134 if(!result) 135 { 136 filePath = nil; 137 } 138 return filePath; 139 } 140 141 #pragma mark Caches下创建文件 142 + (BOOL)createFileAtCachesWithName:(NSString *)aFilename 143 content:(NSData *)aContent 144 { 145 NSString *filePath =[self getFullCachesPathWithName:aFilename]; 146 BOOL result = [self createFileWithPath:filePath 147 content:aContent]; 148 return result; 149 } 150 #pragma mark 根据文件名称获取Caches的文件名的全路径,需要自己释放 151 + (NSString *)getFullCachesPathWithName:(NSString *)aFileName 152 { 153 return [[self getCachesPath] stringByAppendingPathComponent:aFileName]; 154 } 155 156 157 + (NSString *)addSubPath:(NSString *)aSubPath 158 toPath:(NSString *)aPath 159 { 160 return [aPath stringByAppendingPathComponent:aSubPath]; 161 } 162 163 #pragma mark 根据文件名称获取documents的文件名的全路径,需要自己释放 164 + (NSString *)getFullDocumentPathWithName:(NSString *)aFileName 165 { 166 return [[self getDocumentPath] stringByAppendingPathComponent:aFileName]; 167 } 168 169 #pragma mark 根据文件名称获取tmp的文件名的全路径,需要自己释放 170 + (NSString *)getFullTmpPathWithName:(NSString *)aFileName 171 { 172 return [[self getTmpPath] stringByAppendingPathComponent:aFileName]; 173 } 174 175 176 #pragma mark 获取documents的全路径 177 + (NSString *)getDocumentPath 178 { 179 NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES); 180 NSString *result = [pathArray objectAtIndex:0]; 181 return result; 182 183 } 184 185 + (NSString *)getHomePath 186 { 187 NSString *home = [@"~" stringByExpandingTildeInPath]; 188 return home; 189 } 190 191 #pragma mark 删除文件 192 + (BOOL)deleteFileWithName:(NSString *)aFileName 193 error:(NSError **)aError 194 { 195 NSFileManager *tempFileManager = [self getNSFileManager]; 196 return [tempFileManager removeItemAtPath:aFileName 197 error:aError]; 198 } 199 200 201 + (BOOL)deleteFileWithUrl:(NSURL *)aUrl error:(NSError **)aError 202 { 203 return [[self getNSFileManager] removeItemAtURL:aUrl error:aError]; 204 } 205 206 #pragma mark 删除文件夹下的所有文件 207 + (BOOL)deleteAllFileAtPath:(NSString *)aPath 208 { 209 BOOL result = NO; 210 NSArray *fileArray = [self getContentsOfDirectoryAtPath:aPath]; 211 212 213 NSString *filePath = nil; 214 215 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 216 for (int i = 0; i<[fileArray count]; i++) 217 { 218 filePath = [aPath stringByAppendingPathComponent:[fileArray objectAtIndex:i]]; 219 result = [[self getNSFileManager] removeItemAtPath:filePath 220 error:nil]; 221 if (!result) 222 { 223 break; 224 } 225 filePath = nil; 226 } 227 [pool drain]; 228 return result; 229 } 230 231 #pragma mark 根据文件名删除document下的文件 232 + (BOOL)deleteFileAtDocumentsWithName:(NSString *)aFilename 233 error:(NSError **)aError 234 { 235 NSString *filePath = [self getFullDocumentPathWithName:aFilename]; 236 return [self deleteFileWithName:filePath 237 error:aError]; 238 } 239 240 #pragma mark 获取tmp路径 241 + (NSString *)getTmpPath 242 { 243 NSString *pathName = [NSHomeDirectory() stringByAppendingPathComponent:@"tmp"]; 244 return pathName; 245 } 246 247 #pragma mark 获取caches路径 248 + (NSString *)getCachesPath 249 { 250 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask,YES); 251 return [paths objectAtIndex:0]; 252 } 253 254 #pragma mark 在Document下创建文件目录 255 + (BOOL)createDirectoryAtDocument:(NSString *)aDirectory 256 { 257 NSFileManager *tempFileManager = [self getNSFileManager]; 258 NSString * directoryAll = [self getFullDocumentPathWithName:aDirectory]; 259 260 BOOL result = [tempFileManager createDirectoryAtPath:directoryAll 261 withIntermediateDirectories:YES 262 attributes:nil 263 error:nil]; 264 return result; 265 } 266 267 #pragma mark 读取文件 268 + (NSData *)readFileWithPath:(NSString *)aPath 269 { 270 NSData *data = [NSData dataWithContentsOfFile:aPath]; 271 return data; 272 } 273 274 + (NSData *)readFileWithURL:(NSURL *)aUrl 275 { 276 NSData *data = [NSData dataWithContentsOfURL:aUrl]; 277 return data; 278 } 279 + (NSData *)readFileAtDocumentsWithFileName:(NSString *)aFileName 280 { 281 NSString *fullPathWithName = [self getFullDocumentPathWithName:aFileName]; 282 WALog(fullPathWithName); 283 NSData *data = [NSData dataWithContentsOfFile:fullPathWithName]; 284 return data; 285 } 286 287 #pragma mark 遍历文件夹下的所有文件,不含子文件 288 + (NSArray *)getContentsOfDirectoryAtPath:(NSString *)aDirString 289 290 { 291 NSFileManager *tempFileManager = [self getNSFileManager]; 292 return [tempFileManager contentsOfDirectoryAtPath:aDirString 293 error:nil]; 294 } 295 296 297 + (NSArray *)getContentsOfDirectoryByTimeOrderAtPath:(NSString *)aDireString 298 { 299 NSArray *files = [CWAFileUtil getAllFilesAtPath:(NSString *)aDireString]; 300 301 NSMutableArray *iUrls = [[NSMutableArray alloc] initWithCapacity:1]; 302 NSArray *sortedFiles = nil; 303 304 if([files count] > 0) 305 { 306 sortedFiles = [files sortedArrayUsingComparator:^(NSString *url1, NSString *url2) 307 { 308 309 NSDictionary *fileAttributes1 = [[CWAFileUtil getNSFileManager] attributesOfItemAtPath:url1 310 error:nil]; 311 312 NSDictionary *fileAttributes2 = [[CWAFileUtil getNSFileManager] attributesOfItemAtPath:url2 313 error:nil]; 314 NSDate *date1 = [fileAttributes1 objectForKey:NSFileCreationDate] ; 315 316 NSDate *date2 = [fileAttributes2 objectForKey:NSFileCreationDate] ; 317 return [date2 compare:date1]; 318 }]; 319 } 320 321 for (int i = 0; i < [sortedFiles count]; i++) 322 { 323 NSURL *url = [NSURL fileURLWithPath:[sortedFiles objectAtIndex:i]]; 324 [iUrls addObject:url]; 325 } 326 327 return [iUrls autorelease]; 328 329 } 330 331 + (NSArray *)getContentsOfTmpDirectorByTimeOrder 332 { 333 return [self getContentsOfDirectoryByTimeOrderAtPath:[self getTmpPath]]; 334 } 335 336 + (unsigned long long)fileSizeAtPaht:(NSString *)aPath 337 { 338 return [[[self getNSFileManager] attributesOfItemAtPath:aPath error:nil] fileSize]; 339 } 340 341 342 #pragma mark 遍历文件夹下的所有文件,含子文件 343 + (NSArray *)getAllFilesAtPath:(NSString *)aDirString 344 { 345 NSMutableArray *temPathArray = [NSMutableArray array]; 346 347 NSFileManager *tempFileManager = [self getNSFileManager]; 348 NSArray *tempArray = [self getContentsOfDirectoryAtPath:aDirString]; 349 NSString *fullPath = nil; 350 351 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 352 for (NSString *fileName in tempArray) 353 { 354 355 BOOL flag = YES; 356 fullPath = [aDirString stringByAppendingPathComponent:fileName]; 357 358 //判断是否存在 359 if ([tempFileManager fileExistsAtPath:fullPath 360 isDirectory:&flag]) 361 { 362 //不是目录，直接添加 363 if (!flag) 364 { 365 // ignore .DS_Store 366 if (![[fileName substringToIndex:1] isEqualToString:@"."]) 367 { 368 [temPathArray addObject:fullPath]; 369 } 370 } 371 //如果是目录的话，以当前文件夹为key,文件夹下的子文件名为value,递归调用 372 else 373 { 374 NSArray *subPathArray = [self getAllFilesAtPath:fullPath]; 375 // NSDictionary *subPathDic = [[NSDictionary alloc] initWithObjectsAndKeys:subPathArray,fullPath,nil]; 376 [temPathArray addObjectsFromArray:subPathArray]; 377 // [subPathDic release]; 378 } 379 } 380 fullPath = nil; 381 382 } 383 [pool drain]; 384 NSArray *resultArray = [NSArray arrayWithArray:temPathArray]; 385 386 387 return resultArray; 388 389 } 390 391 #pragma mark 复制一个目录下的文件到另外一个目录,前后两个必须一致，要么都是目录，要么都是文件 392 + (BOOL) copyItemAtPath:(NSString *)aPath 393 toPath:(NSString *)aDestinationPath 394 error:(NSError **)aError 395 { 396 NSFileManager *tempFileManager = [self getNSFileManager]; 397 return [tempFileManager copyItemAtPath:aPath 398 toPath:aDestinationPath 399 error:aError]; 400 } 401 402 #pragma mark 重命名文件 403 + (BOOL)renameFileNameFrom:(NSString *)aOldName 404 toPath:(NSString *)aNewName 405 error:(NSError **)aError{ 406 NSFileManager *tempFileManager = [self getNSFileManager]; 407 BOOL result = [tempFileManager moveItemAtPath:aOldName 408 toPath:aNewName 409 error:aError]; 410 return result; 411 }