ios获取存储空间

-(void)usedSpaceAndfreeSpace{

   NSString* path =[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES) objectAtIndex:0];

    NSFileManager* fileManager = [[NSFileManager alloc]init];

    NSDictionary *fileSysAttributes = [fileManagerattributesOfFileSystemForPath:patherror:nil];

    NSNumber *freeSpace = [fileSysAttributes objectForKey:NSFileSystemFreeSize];

    NSNumber *totalSpace = [fileSysAttributes objectForKey:NSFileSystemSize];

   NSString  * str= [NSString stringWithFormat:@"已占用%0.1fG/剩余%0.1fG",([totalSpacelongLongValue] - [freeSpace longLongValue])/1024.0/1024.0/1024.0,[freeSpace longLongValue]/1024.0/1024.0/1024.0];

   NSLog(@"--------%@",str);

}

 

2012-11-23 10:55:43.137 TestZouren[973:c07]--------已占用43.9G/剩余206.9G