获取文件的大小

//.h

//单个文件的大小,返回多少字节

+ (long long)fileSizeFor:(NSString*)filePath;

//遍历文件夹获得文件夹大小，返回多少M

+ (float ) folderSizeFor:(NSString*)folderPath;

//.m

//单个文件的大小,返回多少字节

+ (long long)fileSizeFor:(NSString*)filePath {

NSFileManager* manager = [NSFileManager defaultManager];

if ([manager fileExistsAtPath:filePath]){

return [[manager attributesOfItemAtPath:filePath error:nil] fileSize];

}

return 0;

}

//遍历文件夹获得文件夹大小，返回多少M

+ (float ) folderSizeFor:(NSString*)folderPath {

NSFileManager* manager = [NSFileManager defaultManager];

if (![manager fileExistsAtPath:folderPath]) return 0;

NSEnumerator *childFilesEnumerator = [[manager subpathsAtPath:folderPath] objectEnumerator];

NSString* fileName;

long long folderSize = 0;

while ((fileName = [childFilesEnumerator nextObject]) != nil){

NSString* fileAbsolutePath = [folderPath stringByAppendingPathComponent:fileName];

folderSize += [self fileSizeFor:fileAbsolutePath];

}

return folderSize/(1024.0*1024.0);

}

谢谢阅读！