在iOS中，導航顯示導航

Question

我嘗試使用導航顯示導航，但過渡動畫是從下往上。

UIViewController2 * vc2 = [[UIViewController2 alloc] init]; 
UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:vc2]; 
[self.navigationController showViewController:nav sender:nil]; 

Answer 1

試試。

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:storyboardName bundle: nil]; 
SecondViewController * vc = [storyboard instantiateViewControllerWithIdentifier:@"ViewControllerB"]; 
[[self navigationController] pushViewController:vc animated:YES];