downLoad files to document directory folder

-(IBAction)downloadBtnPressed{

NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,

NSUserDomainMask, YES);

NSString *path = [paths objectAtIndex:0];

NSString *subDirPath = [path stringByAppendingPathComponent:@"allFiles"];

dirPath = subDirPath;

NSFileManager *fileManager = [NSFileManager defaultManager];

NSString *fileName = [tempPath lastPathComponent];

downloadPath = [dirPath stringByAppendingPathComponent:fileName];

NSLog(@"tempPath...%@",tempPath);

        NSLog(@"downloadPath...%@",downloadPath);

[fileManager copyItemAtPath:tempPath toPath:downloadPath error:nil];

}