blocks|key|2119454|text|您可以尝试在popViewController之前使用reloadData，但您应该发布一些代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2119455|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can try to reloadData before popViewController but you should post some code.

blocks|key|3716237|text|所有的UIViewControllers都有一个navigationController方法。当您将视图控制器推送到导航控制器时，该属性被设置为指向导航控制器。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3716238|因此，只需在视图控制器中调用[self.navigationController+popViewControllerAnimated:YES];。|3716239|另外，不要混淆视图和视图控制器。当您在视图中单击save时，您应该确保save按钮调用视图控制器上的一个方法，该方法反过来与导航控制器对话。|3716240|entityMap^0|O|K|0|E|1M|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|R|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|K|$]]

All UIViewControllers have a <code>navigationController</code> method. When you push a view controller to a navigation controller, that property is set to point to the navigation controller.

So, just call <code>[self.navigationController popViewControllerAnimated:YES];</code> in the view controller.

Also, don't confuse views and view controllers. When you click save in the view, you should make sure that the save button calls a method on your view controller, which in turn talks to the navigation controller.

blocks|key|50942|text|点击一行后，您将进入包含适当信息的新视图。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|50943|在这里，您将执行一些操作，例如编辑数据。因此，首先在单击保存按钮时保存更改(通过调用IBAction)，在此IBAction方法中将检查(更改是否已成功保存)，然后调用|50944|self.navigationController+popViewControllerAnimated:是；|50945|并确保表被更新的数据库重新加载(对于此更改的数据数组，通过在viewWillAppear方法中调用数据库方法)。|50946|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

On tapping a row You are going to new view with appropriate information.

Here you perform some operation such as editing data.
So first save the changes on click on save button (By calling an IBAction) and in this IBAction method will check wheter (changes are successfully saved) then call

[self.navigationController popViewControllerAnimated:YES];

And ensure that table reload itself by updated databese (for this change array of data by calling database method in viewWillAppear method).

blocks|key|1375529|text|我也有同样的情况--两个表视图。第一个TV显示数据库记录的列表，当点击其中一个记录时，它将进入第二个TableView，后者显示记录的详细信息。为此，我将details+TableViewController推送到导航控制器堆栈上。到目前为止，一切都很简单。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1375530|我遇到的问题是，在更新详细信息表视图(控制器)中的记录之后，我想让列表表视图控制器知道，以便它可以更新记录列表。|1375531|我做的第一件事是向details表视图控制器添加一个属性，以便当在记录列表上选择一行时，list控制器可以将核心数据托管实体传递给details控制器。|1375532|同时，我还添加了list控制器作为核心数据更改事件的观察者，如下所示：|1375533|[[NSNotificationCenter+defaultCenter]+addObserver:self+selector:@selector(dataSaved:)+name:NSManagedObjectContextDidSaveNotification+object:nil];|code-block|syntax|javascript|1375534|因此，如果详细信息表视图和控制器更新了记录，则list控制器将通过传递NSNotification对象来调用它的dataSaved:方法。|offset|length|style|CODE|1375535|在dataSaved:方法中，我检查对象，如果正在编辑的核心数据实体在更新列表中，那么我设置一个标志，表示需要更新。但是，如果在插入的列表中有一条记录，则意味着已经创建了一条新记录并将其插入到数据库中，因此设置了一个标志来触发列表表视图的完全重新加载。|1375536|当用户返回到列表视图控制器时，将触发viewDidAppear:方法。在此方法中，我检查标志并调用|1375537|-+(void)reloadRowsAtIndexPaths:(NSArray+*)indexPaths+withRowAnimation:(UITableViewRowAnimation)animation|1375538|如果记录已更新，则重新加载特定记录；如果插入了新记录，则通知表视图执行完全重新加载。|1375539|最后，我删除了作为核心数据通知观察者的列表控制器，因为它不再感兴趣。|1375540|我不知道这是否是推荐的方法，但到目前为止，它对我来说是有效的。|1375541|entityMap^0|0|0|0|0|0|1K|A|0|1|A|0|I|E|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|1B|8|@$O|1C|P|1D|Q|R]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1E|8|@$O|1F|P|1G|Q|R]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1H|8|@$O|1I|P|1J|Q|R]]|9|@]|A|$]]|$1|W|3|X|5|J|7|1K|8|@]|9|@]|A|$K|L]]|$1|Y|3|Z|5|6|7|1L|8|@]|9|@]|A|$]]|$1|10|3|11|5|6|7|1M|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|1N|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|15|$]]

I have the same situation - two tableviews. The first TV displays a list of database records and when one is tapped it goes through to the second TableView which displays the details of the record. I do this by pushing the details TableViewController onto the navigation controllers stack. So far so go and quite simple.

The problem I encountered was that after updating the record in the details table view (controller), I wanted to let the list table view controller know, so that it could update the list of records.

The first thing I did was to add a property to the details table view controller so that when a row was selected on the list of records, the list controller could pass the core data managed entity to the details controller. 

At the same time, I also added the list controller as a observer of core data change events like this:

<pre><code>[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(dataSaved:) name:NSManagedObjectContextDidSaveNotification object:nil];
</code></pre>

So if the details table view and controller update the record, the list controller has it's <code>dataSaved:</code> method called, passing a NSNotification object. 

In the <code>dataSaved:</code> method I examine the object and if the core data entity being edited is in the updated list, then I set a flag to signal an update is required. However if there is a record in the inserted list, it means that a new record has been created and inserted into the database, so a flag is set to trigger a full reload of the list table view. 

When the user returns to the list view controller, the <code>viewDidAppear:</code> method is triggered. In this method I examine the flags and either call

<pre><code>- (void)reloadRowsAtIndexPaths:(NSArray *)indexPaths withRowAnimation:(UITableViewRowAnimation)animation
</code></pre>

to reload the specific record if the record was updated, or tell the table view to do a full reload if there is an insert of a new record.

Finally I then remove the list controller as an observer of core data notifications because it is no longer interested.

I don't know if this is the recommended way to do this, but so far it's working for me.

Sort of a simple question. I have a tableview in a navigationcontroller. When I touch a cell, it pushes a view controller with the information from the cell, so I can edit it in the new view. Now thats working correct (we can call it the informationpath: "rootviewcontroller -> pushed viewcontroller"). But when I click save in the new view, I want the edited values to travel back to the rootviewcontroller before I call popviewcontroller (informationpath: "pushed viewcontroller -> rootviewcontroller"), so the edited values can be displayed in the tableview. 

Whats the correct approach to this?

EDIT:

pushViewController and popViewController is working. I only asked for the best approach to get the edited information back to the rootViewController for display in the tableview, when Save-button (popViewController) was called. I guess I'll just have to edit the pList with the new information directly from the pushed viewController. Though I would prefer sending the new information to the rootViewController and have it handle the access to the pList-file.

Information from pushed viewController to rootViewController

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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这是一个简单的问题。我在导航控制器中有一个表视图。当我触摸一个单元格时，它会推送一个带有来自该单元格的信息的视图控制器，这样我就可以在新的视图中编辑它。现在工作正常了(我们可以称它为信息路径："rootviewcontroller -> pushed“)。但是，当我在新视图中单击保存时，我希望在调用popviewcon...

问推送viewController到rootViewController的信息
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