It is possible to use an existing ViewController with PerformSegueWithIdentifier?

Question

I use the method performSegueWithIdentifier:sender: to open a new ViewController from a storyboard-file programmatically. This works like a charm.<

Answer 1

Following code makes singleton view controller. Add them to your destination view controller implementation, then segue will reuse the same vc.

static id s_singleton = nil;
+ (id) alloc {
    if(s_singleton != nil)
        return s_singleton;
    return [super alloc];
}
- (id) initWithCoder:(NSCoder *)aDecoder {
    if(s_singleton != nil)
        return s_singleton;
    self = [super initWithCoder:aDecoder];
    if(self) {
        s_singleton = self;
    }
    return self;
}