如何解散多個視圖控制器？

Question

我有3視圖控制器故事板：QuestionsTableViewController，QuestionViewController和AnswerViewController

對於所有密集的目的，QuestionsTableViewController基本上是我主菜單。它有一個選擇的主題，當選擇填充QuestionViewController問題標籤，然後被挑選。

用戶輸入的UITextField他/她的答案，並點擊提交按鈕造成模態SEGUE到AnswerViewController其中有一個返回無論是正確或不正確的消息，根據他們的答案進行比較的用戶標籤到編碼正確的答案。這個最終視圖控制器也有一個按鈕（回到菜單），點擊時，應將用戶帶回QuestionsTableViewController（即我的菜單）。

這最後一部分（返回菜單）是我遇到問題的地方。

我可以多種方式解僱AnswerViewController，但我無法弄清楚我需要做什麼才能將QuestionViewController作爲這個按鈕的一部分。

我包括我的QuestionViewController和AnswerViewController類以下的snipets。

QuestionViewController.m 

#import "QuestionViewController.h" 
#import "AnswerViewController.h" 

@interface QuestionViewController() 

@end 

@implementation QuestionViewController 

@synthesize currentQuestionDisplay; 
@synthesize userAnswerTextField; 
@synthesize currentQuestion; 

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    AnswerViewController *avc = [segue destinationViewController]; 
    [avc setCurrentQuestion:currentQuestion]; 
    [avc setUserAnswer:[userAnswerTextField text]]; 
} 

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

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    [self.currentQuestionDisplay setText:[currentQuestion question]]; 

    // Do any additional setup after loading the view. 
} 

- (void)viewDidUnload 
{ 
    [self setCurrentQuestionDisplay:nil]; 
    [self setUserAnswerTextField:nil]; 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 

- (IBAction)dismissKeyboard:(id)sender { 
    [userAnswerTextField resignFirstResponder]; 
} 

- (void)dimissThisVC 
{ 
    [self dismissViewControllerAnimated:YES completion:^(void){}]; 
} 

@end 


AnswerViewController.m 

#import "AnswerViewController.h" 
#import "QuestionViewController.h" 

@interface AnswerViewController() 

@end 

@implementation AnswerViewController 

@synthesize displayCurrentAnswer; 
@synthesize currentQuestion; 
@synthesize userAnswer; 


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

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    if([userAnswer isEqualToString:currentQuestion.answer]) { 
     [self.displayCurrentAnswer setText:@"You are correct!"]; 
    } 
    else { 
     [self.displayCurrentAnswer setText:@"You are wrong!"]; 
    } 

    // Do any additional setup after loading the view. 
} 

- (void)viewDidUnload 
{ 
    [self setDisplayCurrentAnswer:nil]; 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 

- (IBAction)dismissAnswerVC:(id)sender { 
    [[self presentingViewController] 
      dismissViewControllerAnimated:YES 
      completion:^(void){ }]; 
} 

@end 

Answer 1

當您關閉模式的看法，在完成塊有這樣的代碼：

[self.navigationController popViewControllerAnimated:YES]; 

或者，如果你想要去到最高控制器：

[self.navigationController popToRootViewControllerAnimated:YES]; 

Answer 2

在

努力完成這篇文章，爲其他人誰可以參考它，我要重新發布user523234的答案在這裏：

In the prepareForSegue method, you missed this line: 

avc.delegate = self; 

希望這可以幫助別人誰已陷入同樣的​​孔，我是在