Table view:how to store accessoryType

[cesky12]

Hi,

I am a student taking a mobile apps development class and I've hit a wall with one of my projects:

I have a table view populated by a plist in a modal view. The user can tap on individual cells to toggle the tableViewCellAccessory from "None" to "Checkmark".
What I am trying to do is store the accessory type for each cell so it can be referenced in the previous view.

So far, I have spent time time attempting to store that info in a NSUserDefaults list but I am having no luck. I am pretty confused since the number of cells is dependent on the plist and I need to be able to store the accessory type for each cell and use it in an "if" statement in the previous view.

I would appreciate any help with how to write the code this way or any alternative way to achieve the same results.

I'm new to this so forgive me if I use incorrect terms.

Thank you!!

cesky12

[BrianSlick]

You're approaching it from the wrong direction. The checkmark is a reflection of your data, not the embodiment of it. You model should have some kind of property in it - shouldBeChecked - and then your table view can read that to know whether or not to display the checkmark. When the user taps a row, change that value.

[cesky12]

Originally Posted by BrianSlick

You're approaching it from the wrong direction. The checkmark is a reflection of your data, not the embodiment of it. You model should have some kind of property in it - shouldBeChecked - and then your table view can read that to know whether or not to display the checkmark. When the user taps a row, change that value.

Thanks for your reply.

That makes sense, but how would I initially assign that property to each cell in the table?

[BrianSlick]

Do you know how table views work?

[cesky12]

Originally Posted by BrianSlick

Do you know how table views work?

In general, yes. I do not, however, know anything about storing or assigning properties to individual cells.

[BrianSlick]

The only thing you're changing about the cell is the accessory type as you mentioned in the first post.

[cesky12]

Correct, so my code looks like this so the user can check and uncheck cells:


-(void) tableViewUITableView *)tableView didSelectRowAtIndexPathNSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:
indexPath];
if (cell.accessoryType == UITableViewCellAccessoryCheckmark) {
cell.accessoryType = UITableViewCellAccessoryNone;

}
else {
cell.accessoryType = UITableViewCellAccessoryCheckmark;
}

[tableView deselectRowAtIndexPath:indexPath animated:YES];
}



Now I am trying to save that selection using NSUserDefaults so the cells stay checked/unchecked even if the app is exited.

[cesky12]

bump

[BrianSlick]

You've made no progress in 3 weeks?

[RickSDK]

its hard to tell exactly what you are trying to do, but if nothing else it seems like you could create a string representation of each type, then concatenate them together and save them to userDefaults. Then read them back when you need them. Like this:

NSString *types = @"None|Checkmark|Checkmark|Checkmark";

save that string to userDefaults.

then read it back in when the view re-loads and convert it to an array:

NSArray *accessoryTypes = [types componentsSeperatedByString:@"|"];

and finally set the accessoryTypes based on the strings.