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self.clearsSelectionOnViewWillAppear = NO;
in the BIDLanguageListController.m file. I pressed Alt + on it and i did actaully understood what is it, but in the example project i didn't know what's the difference between putting it's value as a YES or a NO. putting both have the same effect or in other words nothing changes. My theory is that when i click on a president then a language then change to another president, the language selection will switch to english as a default if the value was YES. please correct me if i'm wrong.
second question, why did we use IBAction instead of void in the code? i know that IBAction is actually a void but why was it chosen? what was the author's intentions ? Thank you!