slaunchaman / gcdexample Goto Github PK

in
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

there is call to RootViewController for
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
but method is not there

The scrolling for this example is very, very laggy

I have developed a project, where a user draws a image on a canvas, I store it in the file using CoreData, I have one-to-many relationship called folder-to-files. So here all are images. I retreive the images from files , resize according to my table cell height and show it on a table. Once it is shown, I want to cache the images.

I also have some labels on the folder cell, which give me some info regarding my files, which I update on fly. I also swipe the cells to mark it complete and move it to the bottom the cell.

I also show same file images in different Views depending on how user queries it.

I want to know the best method for this, I read through the web, their are many methods, GCD, NSOperationQueues and many more.

Which method will be best suited for me.

Regards
Ranjit

Please have a look at this link http://stackoverflow.com/questions/20519099/how-to-use-nscache-with-coredata