Question

在我的项目中，我们有三个窗口A，B和C.从A我想推视图B，而从B我想呈现视图C. 我的代码： ViewController A：

ViewControllerB *vcB = [[viewControllerB alloc] 
initWithNibName:@"ViewControllerB" bundle:nil];
[[self navigationController] pushViewController:vcB animated:YES];

查看控制器B：

ViewControllerC *vcC = [[ViewControllerC alloc] 
initWithNibName:@"ViewControllerC" bundle:nil];
[self presentViewController:vcC animated: true completion: nil];

直到现在一切都还可以，但是当我用最后一个视图控制器解除时：

[[self presentingViewController] dismissViewControllerAnimated:NO completion:nil];

应用程序返回第一个视图控制器（vcA）而不是第二个视图控制器（vcB）

我做错了什么？谢谢你们，伙计们。

Answer 1

你必须做一些你没有告诉我们的事情......

这可以按预期工作：

在MyFirstViewController.m

- (IBAction)pushTapped:(id)sender {
    MyPushedViewController *vc = [[MyPushedViewController alloc] initWithNibName:@"MyPushedViewController" bundle:nil];
    [self.navigationController pushViewController:vc animated:YES];
}

在MyPushedViewController.m

- (IBAction)presentTapped:(id)sender {
    MyPresentedViewController *vc = [[MyPresentedViewController alloc] initWithNibName:@"MyPresentedViewController" bundle:nil];
    [self presentViewController:vc animated:YES completion:nil];
}

在MyPresentedViewController.m

- (IBAction)dismissTapped:(id)sender {
    [self dismissViewControllerAnimated:NO completion:nil];
}

点击MyPresentedViewController中的“关闭”按钮会解除显示的视图控制器（您的vcC），让我离开MyPushedViewController（您的vcB）... 不 MyFirstViewController（您的vcA）。

Answer 2

试试这个以解雇vc

[self dismissViewControllerAnimated:NO completion:nil]

并使用此选项来弹出

 [self.navigationController popToViewController:controller animated:YES];

Answer 3

[self presentingViewController] = Bvc，所以在这里你实际上解雇了B而不是C

 [Bvc dismissViewControllerAnimated:NO completion:nil];

但是自我= Cvc所以在这里你只解雇C

 [self dismissViewControllerAnimated:NO completion:nil];

PresentViewController dismiss不会回到之前的viewController

3 个答案: