ios 导航回到上一个视图控制器
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Navigate Back to previous view controller
提问by user1688346
I have a UIView->UICollectionView->UICollectionViewCell. I am trying to navigate back programatically but none of these works. The code did called.
I am using StoryBoard.
我有一个UIView->UICollectionView->UICollectionViewCell. 我正在尝试以编程方式返回，但这些都不起作用。代码确实调用了。我正在使用故事板。
- (void) goBack:(NSNotification *) notification {
// [self.navigationController popViewControllerAnimated:YES];
// [self dismissViewControllerAnimated:YES completion:nil];
[self.navigationController popToRootViewControllerAnimated:YES];
}
回答by Vineet Singh
You need to use:
您需要使用：
[self.navigationController popToRootViewControllerAnimated:YES];
This will bring you back to the root view controller.
这将带您回到根视图控制器。
If you want to navigate back to previous view controller, you should implement:
如果你想导航回上一个视图控制器，你应该实现：
[self.navigationController popViewControllerAnimated:YES];
回答by Madhu
By using below line we can go to parent view controller
通过使用下面的行，我们可以转到父视图控制器
[self.navigationController popViewControllerAnimated:YES];
By using below line we can move to main/root view controller
通过使用下面的行，我们可以移动到主/根视图控制器
[self.navigationController popToRootViewControllerAnimated:YES];
By using below line we can move to any view controller
通过使用下面的行，我们可以移动到任何视图控制器
[self.navigationController popToViewController:viewControllerObject animated:YES];
回答by Jenn Eve
How about...
怎么样...
[self.navigationController dismissViewControllerAnimated:YES completion:NULL];
Assuming that you are currently in a navigation-based controller and you wanted to go back to the previous controller before you got into a navigation-based controller.
假设您当前处于基于导航的控制器中，并且您想在进入基于导航的控制器之前返回到前一个控制器。
回答by Esqarrouth
Swift solutions for easy copy pasting:
用于轻松复制粘贴的 Swift 解决方案：
navigationController?.popViewControllerAnimated(true)
回答by Kristian
Swift 4.1:
斯威夫特 4.1：
navigationController.popViewController(animated: true)
回答by Kris Roofe
With swift3,
使用swift3，
@IBAction func back(_ sender: UIButton) {
self.dismiss(animated: true, completion: nil)
}
回答by Chirag Pipaliya
Try it....
尝试一下....
#import "bookdescriViewController.h" // import here your class name
- (IBAction)backButton:(id)sender
{
bookdescriViewController *previosVC = [[bookdescriViewController alloc]init];
[self.navigationController popViewControllerAnimated:YES]; // go to previous view controller
[self.navigationController popToRootViewControllerAnimated:YES]; // go to root view controller
[self.navigationController popToViewController:previosVC animated:YES]; // go to any view controller
[previosVC release];
}
回答by Alan10977
Go back to parent view controller and dealloc current view controller ex :
返回父视图控制器并释放当前视图控制器 ex ：
- (void)applicationDidEnterBackground:(NSNotification *)notification
{
NSInteger numberOfViewControllers = self.navigationController.viewControllers.count;
UIViewController *vc = [self.navigationController.viewControllers objectAtIndex:numberOfViewControllers - 2];
[self.navigationController popToViewController:vc animated:NO];
}
or another view controller
或其他视图控制器
回答by Alan10977
- (void) goBack:(NSNotification *) notification
{
if(!self.YOrView.isHidden)
self.YOrView.hidden = YES;
}
