如何从一个视图导航到另一视图
我使用按钮操作来弹出子视图，如下代码；
- (IBAction)pickerUpBtn:(id)sender {
PickerPopUpController *screen = [[PickerPopUpController alloc]initWithNibName:@"PickerPopUpController" bundle:Nil];
[self.view addSubview:screen.view];
[self presentModalViewController:screen animated:YES];
}
在我需要去上一个窗口之后；所以我使用了另一个按钮操作，并在操作中添加了以下代码
PickerViewController *screen = [[PickerViewController alloc]initWithNibName:@"PickerViewController" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:screen animated:YES];
，但它不会导航到上一个视图。我怎么能做到呢？
I used button action to to pop sub view sing below code;
- (IBAction)pickerUpBtn:(id)sender {
PickerPopUpController *screen = [[PickerPopUpController alloc]initWithNibName:@"PickerPopUpController" bundle:Nil];
[self.view addSubview:screen.view];
[self presentModalViewController:screen animated:YES];
}
after i need to go previous window; So i used another button action for it and add bellow code inside action
PickerViewController *screen = [[PickerViewController alloc]initWithNibName:@"PickerViewController" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:screen animated:YES];
But It does not navigate to previous view . How could i do it ??
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评论（4）
回去，
做
to go back,
do
您只需将单个代码放入按钮操作中。无需创建parentViewController 对象。
IE，
You need to put only that single code in the Button action..No need of making object of parentViewController.
ie,
您需要为您的 ViewController 添加
cancel和done，以返回到父视图控制器。实现
Cancel按钮后，您必须使用dismissModalViewControllerAnimated在Cancel按钮的action函数中关闭视图控制器功能You need to add
cancelanddonefor your ViewController which is present modely to come back to parent view Controller.After implementing the
Cancelbutton, you have to dismiss your viewcontroller in the action function ofCancelbutton using thedismissModalViewControllerAnimatedfunction对于推送视图控制器，您可以执行如下操作，
然后要返回，您必须在“屏幕”视图控制器中添加一个按钮，并且您必须编写以下代码的单击事件，
希望这会有所帮助。
如有任何困难请告诉我。
如果您使用的是“presentmodelviewcontroller”方法，那么您必须在按钮单击中写下一行。
For push view controller, you can do like below,
Then for go back, you have to add one button in "Screen" view controller and it's click event you have to write below code,
Hope, it would be helpful.
Let me know in case of any difficulty.
If you are using the method "presentmodelviewcontroller" then you have to write below line in button click.