Question

I am getting id values from plist in iOS sdk, if i am getting value 0 then I have to show it as 1 and vice versa.

Here is my code for the same

+(BOOL) removeButton {
   id obj = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"ABC"];
   if (obj != Nil) {
      return (BOOL)obj;
  }
    return YES;
 }

But the problem is that as the value for id is 0 then it will return No and vice versa. But I want to put my condition in opposite matter such as suppose the value for id is 0 then I have to show return YES and vice versa.

Answer 1

You can’t cast id to BOOL. Assuming it is stored correctly, the way you get it out of a dictionary is through the number wrapper NSNumber.

NSNumber *boolWrapper = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"ABC"];
return ![boolWrapper boolValue];

This will return 0 for 1 and 1 for 0.

If you simply cast it like you are doing, it will always be true unless the object doesn’t exist (i.e. it is nil).