在Storyboard中以編程方式呈現ViewController

Question

我正在嘗試在情節提要中以編程方式呈現ViewController，我正在使用下面提到的代碼，但是它不起作用，沒有給我任何回應...

- (void)buttonPressed
{
NSLog(@"called");

UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];

UINavigationController *vc = [sb instantiateViewControllerWithIdentifier:@"123"];

vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;

[self.navigationController presentModalViewController:vc animated:YES];
}

我在這里想念什么？

Answer 1

NSLog(@"called");

    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];

    UINavigationController *vc = [sb instantiateInitialViewController];

    vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    [self presentViewController:vc animated:YES completion:nil];