单击按钮时EXC_BAD_ACCESS EXC_I386_GPFLT [英] EXC_BAD_ACCESS EXC_I386_GPFLT while click on button

问题描述

我有一个UIViewController和UITableView，当tableView为空时，我想显示另一个视图，所以我正在使用它

i have a UIViewController with UITableView, when the tableView is empty i want to show another view so i am using this

    [self.tableView setHidden:YES];
    NoKidsViewController *noKids = [self.storyboard instantiateViewControllerWithIdentifier:@"NoKidsView"];

    [self.view addSubview:noKids.view];

一切都很好，我能够看到风景.但是当我点击其中的一个按钮时，出现了EXC_BAD_ACCESS EXC_I386_GPFLT错误.

all is fine, i'm able to see the view. but when i tap on one of the buttons in it i'm getting the EXC_BAD_ACCESS EXC_I386_GPFLT error.

//NoKidsViewController

    - (IBAction)addNewKid:(id)sender {
        AddKid *addKidController = [self.storyboard instantiateViewControllerWithIdentifier:@"AddKid"];
           [self.navigationController pushViewController:addKidController animated:YES];

    }

    - (IBAction)saleSpot:(id)sender {
        SaleSpot *saleSpotController = [self.storyboard instantiateViewControllerWithIdentifier:@"AddKid"];
        [self.navigationController pushViewController:saleSpotController animated:YES];
    }

我在3个小时内搜寻了整个网络，试图找到没有成功的解决方案.什么会导致该错误?以及我该如何解决?

i searched the net over 3 hours trying to find any solution w/o success. what could cause that error? and how can i fix it?

推荐答案

noKids控制器超出范围并被释放.这就是通常被称为僵尸对象的东西.

The noKids controller is going out of scope and being deallocated. This is what is often referred to as a zombie object.

您需要将noKids控制器添加到包含控制器的childViewControllers.

You need to add the noKids controller to the childViewControllers of the containing controller.

NoKidsViewController *noKids = [self.storyboard instantiateViewControllerWithIdentifier:@"NoKidsView"];
[self addChildViewController:noKids];
[self.view addSubview:noKids.view];
[noKids didMoveToParentViewController:self];

这将保留NoKidsViewController并允许视图控制器方法向下传递给它.有关创建自定义容器视图控制器的更多信息:

This will retain the NoKidsViewController as well as allow the view controller methods to pass down to it. For more information on creating your custom container view controller:

https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS /CreatingCustomContainerViewControllers/CreatingCustomContainerViewControllers.html

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