iphone - 当我尝试转到其他 View 时，模拟器崩溃

Question

所以我有一个标签栏应用程序，在其中我放置了一个按钮以转到另一个 View 。

所以在FirstView.h中我有

IBOutlet ContactMainViewController *contactMainViewController;

然后

-(IBAction)gotoContactMainViewController;

在我的FirstView.m中

-(IBAction)gotoContactMainViewController {

    [self presentModalViewController:contactMainViewController animated:YES];
}

并在.h中创建的SecondView中

-(IBAction)goBack;

并在.m中

-(IBAction)goBack {

    [self dismissModalViewControllerAnimated:YES];
}

该应用程序正常运行，但是当我单击按钮时，出现绿线

[self presentModalViewController:contactMainViewController animated:YES];

然后说"Thread 1: Program received signal: "SIGABRT"并在控制台中:terminate called throwing an exception[Switching to process 3908 thread 0xb303]
谢谢你的帮助 !

Answer 1

什么样的FirstView和ContactMainViewController类文件？是UIViewController还是简单的UIView？
我们假设ContactMainViewController是一个单独的类文件

在您的firstView.m中

#import "ContactMainViewController.h"

-(IBAction)gotoContactMainViewController {

    ContactMainViewController _contactMainVC = [[ContactMainViewController alloc]init];

    [self presentModalViewController:_contactMainVC animated:YES];
    [_contactMainVC release];
}

Add the @class ContactMainViewController; in the header before the @interface. That should do it. Also be sure to #import "ContactMainViewController.h" in your .m file to avoid warnings