Question

I read a plist into memory and need to change one of the values if a user taps on a row.

I read the plist into memory and then show it on a table view.

This is the read into memory:

 self.questions = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"q1" ofType:@"plist"]];

Then I need to update one of the values, just while its in memory. I guess I could make another whole array but it seems as though I should be able to do something like this:

[[[self.questions valueForKey:title]  objectAtIndex:indexPath.row] valueForKey:@"Checked"] = @"1";

When run this I get an error saying the value is read only. Short on making another array to handle the checked off and on, is there a way to do this?

thank you!

Answer 1

Use +[NSPropertyListSerialization propertyListWithData:options:format:error:] to decode the contents of the file, and pass either the NSPropertyListMutableContainers option or the NSPropertyListMutableContainersAndLeaves option.