使用情节提要板时，如何在Objective-C中实现自定义init方法？

我使用情节XCode 4.6.3提要创建了一些按钮和标签，我想单击FirstViewController中的按钮时触发一些方法，为了使这些方法起作用，我定义了一些变量/ NSMutableArrays（currentQuestionIndex，questions等）。我想使用自定义的初始化方法来初始化这些。当我离开initWithNibName并按initWithCoder原样编写新的init方法并在其中编写实现时，它不会被调用。

但是，当我按下面的代码片段所示操作代码时，它起作用了。

我想知道在使用创建对象时如何使用自定义init方法，Storyboard因为我在这里所做的可能不是一个好习惯。当我尝试使用初始化时initWithCoder，它不起作用。但是据我所记得，我们使用initWithCoder从初始化Storyboard，对吗？中的按钮/标签storyboard位于FirstViewController中。

这是我的FirstViewController.h文件

#import <UIKit/UIKit.h>

@interface FirstViewController : UIViewController
{
    int currentQuestionIndex;
    // The model objects
    NSMutableArray *questions;
    NSMutableArray *answers;

    //The view objects
    IBOutlet UILabel *questionField;
    IBOutlet UILabel *answerField;
}

@property (strong, nonatomic) UIWindow *window;

- (IBAction)showQuestion:(id)sender;
- (IBAction)showAnswer:(id)sender;

@end

和

这是我的FirstViewController.m文件

#import "FirstViewController.h"

@interface FirstViewController ()

@end

@implementation FirstViewController

- (id)init {
    // Call the init method implemented by the superclass
    self = [super init];
    if(self) {
        currentQuestionIndex = -1;
        // Create two arrays and make the pointers point to them
        questions = [[NSMutableArray alloc] init];
        answers = [[NSMutableArray alloc] init];
        // Add questions and answers to the arrays
        [questions addObject:@"What is 7 + 7?"];
        [answers addObject:@"14"];
        [questions addObject:@"What is the capital of Vermont?"];
        [answers addObject:@"Montpelier"];
        [questions addObject:@"From what is cognac made?"];
        [answers addObject:@"Grapes"];
    }
    // Return the address of the new object
    return self;
}

-(IBAction)showQuestion:(id)sender
{
    currentQuestionIndex++;
    if(currentQuestionIndex == [questions count])
        currentQuestionIndex = 0;
    NSLog(@"%d",[questions count]);
    NSString *question = [questions objectAtIndex:currentQuestionIndex];
    NSLog(@"dislaying question at index %d : %@" ,currentQuestionIndex,question);

    [questionField setText:question];

    [answerField setText:@"???"];
}

-(IBAction)showAnswer:(id)sender
{
    NSString *answer = [answers objectAtIndex:currentQuestionIndex];
    [answerField setText:answer];
}

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

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

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

@end