didSelectRowAtIndexPath和segues [英] didSelectRowAtIndexPath and segues

问题描述

我正在使用Storyboard.我对将新的UItableViewController推入导航堆栈时使用segues感到怀疑.怎么做对?当单元格中的轻击导致推入并仅使用didSelectRowAtIndexPath吗? 请分享您的意见.

I am working with Storyboard. I am in doubt regarding the use of segues when pushing a new UItableViewController onto the navigation stack. How to do it right? No segue when the push results from a tap in a cell and just use didSelectRowAtIndexPath? Please share your opinion.

推荐答案

您根本没有提到它，但是从您提到的segue来看，您正在使用情节提要.

You do not mention it at all, but judging by your mention of a segue you are using storyboarding.

使用情节提要时，有一种显示新视图控制器的新方法.通过使用将UITableViewCell连接到Interface Builder中的新视图控制器.这样做时，无需使用didSelectRowAtIndexPath:，因为新的视图控制器将自动显示.但是，您可以准备segue，并在新的视图控制器上设置参数，例如:

When using storyboarding there is a new way to show a new view controller. By connecting a UITableViewCell using a seque to a new view controller in Interface Builder. When you do that, there's no need to use didSelectRowAtIndexPath: because the new view controller will be displayed automatically. You can however prepare your segue, and set parameters on the new view controller for example:

- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // assumes only one type, more extensive checking before cast to 
    // make it safer is needed.
    MyViewController *viewController = (MyViewController *) segue.destinationViewController;

    viewController.detailObject = myModelObject;
}

对于未使用Segue连接的任何Tableview单元，您可以使用普通的tableView:didSelectRowAtIndexPath:来提供自己的行为.

For any tableview cell that is not connected using a segue you can provide your own behaviour using plain old tableView:didSelectRowAtIndexPath:.

没有正确的方法，仅使用您认为最简单的方法即可.

There is no correct way, just use whatever seems easiest to you.

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