Reload UITableView when navigating back?

Question

I have a top level UIViewController that contains a UITableView. The top level UIViewController instantiates a NavigationController

Answer 1

viewWillAppear gets called every time the view appears include the first time. Here is my solution for reload the view only when you navigate back

I create one variable in .h file of my ViewController for checking that it is the first time I go to this ViewController or when I navigate back

@property (nonatomic) BOOL isViewExist;

After that in viewWillAppear

-(void)viewWillAppear:(BOOL)animated{
    if(!self.isViewExist){
        self.isViewExist = YES; // check it is the first time you go to this ViewController -> don't reload anything
    }else{
        [self.tableView reloadData]; // to reload the tableview data
        // or your can refresh anything in your ViewController as you want
    }
}

Hope this help