I added to the project the file Objects.json which contains the following code:
{
"circle": [
[1, 3], [2, 1], [3, 2],
],
"line": [
[2, 1], [3, 2], [1, 3],
],
"A_Letter": [
[3, 3], [2, 1], [1, 2],
],
}
How could I add to this file a new key?
If, for instance, I want to remove the "line" key, how could this be done?
Try this may be helpfull, In this I solve JSON and remove key as you wants ..
NSString *str = @"{\"circle\": [ [1, 3], [2, 1], [3, 2],],\"line\": [ [2, 1], [3, 2], [1, 3],],\"A_Letter\": [ [3, 3], [2, 1], [1, 2], ]}";
NSMutableDictionary *datadic = [NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:nil];
[datadic removeObjectForKey:@"line"];
NSLog(@"data return %@",datadic);
Thanks
Since this is the arrays of dictionary. So for adding into the dictionary use setObject: ForKey: method and for removing use removeObjectForKey: like that below:-
NSMutableDictionary *mutDict=[yourjsonDict mutableCopy];
[mutDict setObject: @[@[1,2],@[2,3]] forKey:@"yourKey"];
// now for removing
[mutDict removeObjectForKey:@"line"];
