Question

i want update my core data database when the view is just loaded on the screen, i know the default method:

- (void)viewDidLoad
{
[super viewDidLoad];

}

- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}

- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}

- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}

- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}

that are call when the view is loading, or when disappear, but my question is, exist a default method like the above method or exist a way to call a method just after the view is loaded on the screen, and i see my graphics? not when the display is still black because it’s loading…

Answer 1

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
    // Here is the place where you should call your function.
}

but be advised: when you update your coredata in the mainthread, your interface will be blocked for the duration of the update.