視圖控制器崩潰 - 新手

我的iOS視圖控制器崩潰在下面的這個方法（skipRegistration）。它曾經工作過，但是現在每當蘋果嘗試批准該應用程序時它就會失敗。有沒有一種方法可以查看出了什麼問題，或調試崩潰的確切原因？視圖控制器崩潰 - 新手

代碼：

@interface MPRegisterViewController() 

@property (nonatomic, retain) NSManagedObjectContext *managedObjectContext; 

@end 

@implementation MPRegisterViewController 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 
{ 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization 
} 
return self; 
} 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    self.navigationController.navigationBar.tintColor = [UIColor whiteColor]; 

    // for CoreData 
    MPAppDelegate *appDelegate = [UIApplication sharedApplication].delegate; 
    self.managedObjectContext = appDelegate.managedObjectContext; 

    self.firstName.delegate = self; 
    self.lastName.delegate = self; 
    self.email.delegate = self; 
    self.telephone.delegate = self; 
} 

- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
    // Dispose of any resources that can be recreated. 
} 


#pragma mark - Navigation 
- (BOOL)textFieldShouldReturn:(UITextField *)textField { 
[self.firstName resignFirstResponder]; 
[self.lastName resignFirstResponder]; 
[self.email resignFirstResponder]; 
[self.telephone resignFirstResponder]; 

return NO; 
} 

- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error 
{ 
switch (result) 
{ 
    case MFMailComposeResultCancelled: 
     NSLog(@"Mail cancelled"); 
     break; 
    case MFMailComposeResultSaved: 
     NSLog(@"Mail saved"); 
     break; 
    case MFMailComposeResultSent: 
     NSLog(@"Mail sent"); 
     break; 
    case MFMailComposeResultFailed: 
     NSLog(@"Mail sent failure: %@", [error localizedDescription]); 
     break; 
    default: 
     break; 
} 

// Close the Mail Interface 
[self dismissViewControllerAnimated:YES completion:NULL]; 
} 


- (IBAction)skipRegistration:(id)sender { 

[[NSUserDefaults standardUserDefaults] setValue:@"skippedit" forKey: @"SkippedIt"]; 
[[NSUserDefaults standardUserDefaults] synchronize]; 

[self dismissViewControllerAnimated:NO completion:NULL]; 
} 
@end

我的堆棧跟蹤是在這裏;

完整堆棧跟蹤：

0的CoreFoundation 0x181d79e48 + 132 1 libobjc.A.dylib 0x1929c80e4 _objc_exception_throw + 60 2的UIKit 0x18683ea40 - [UIViewController中_presentViewController：withAnimationController：完成：] + 3376 3的UIKit 0x1868408dc + 120 4
的UIKit 0x1866160b4 - [UIViewController中 presentViewController：動畫：完成：] + 216

來源

2015-01-17 user3429534

您是否測試過應用程序的發佈版本？ – Wain

好吧，首先你應該得到異常消息。 –

的升你的skipRegistration的行似乎是罪魁禍首，如何呈現視圖？我會把你的注意力集中在這裏。

來源

2015-01-17 16:42:46

視圖控制器崩潰 - 新手

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