从presentModalViewController推送uiviewcontroller

Question

我使用 presentModalViewController 显示视图。从这个 UIView 中，我想使用 UINavigationController 推送 UIView。 我尝试了下面的代码

[self.parentViewController.navigationController 
                pushViewController:objViewFullScreen 
                          animated:YES];

，但它对我不起作用。所以请有人建议我如何从 ModelViewController 推送视图。

谢谢

Answer 1

首先，您必须在导航控制器中呈现模态视图控制器：

MyViewController *vc = [[MyViewController alloc] initWithNibName:@"MyNib" bundle:nil];
UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:vc];

[self presentModalViewController:nc animated:YES];

[vc release];
[nc release];

然后在 MyViewController 中您可以执行以下操作：

OtherViewController *vc = [[OtherViewController alloc] initWithNibName:@"MyOtherNib" bundle:nil];
[self.navigationController pushViewController:vc animated:YES];
[vc release];

Answer 2

-(void)pushViewControllerWithCustomAnimation:(UIViewController *)newViewController {
    newViewController.view.alpha = 0.0f;
    [self.view addSubview:newViewController.view];

    [UIView animateWithDuration:1
                     animations:^{
                         newViewController.view.alpha = 1;
                     }
                     completion:^(BOOL fin){
                         if (fin) {
                             // finally display the new viewcontroller for real
                             [self.navigationController pushViewController:newViewController animated:NO];
                         }
                     }];
}