如何为一个特定的情节提要板指定标签? [英] How to specify a label to one specific storyboard?

问题描述

基本上，我使用情节提要制作一个应用程序(一个简单的游戏)，其中的问题会在屏幕上弹出，用户必须回答.他们可以选择移至下一个问题或记录其回答.我创建了一个包含问题列表的NSArray，并且希望它们随机出现在标签中(标签将从NSArray中随机选择一个问题进行显示).不过，我要这样做的方法是使每个情节提要板都有一个问题，因此，一旦回答了一个问题，您就可以进入下一个情节提要板，在该情节提要中下一个问题将显示在标签中.每个情节提要中的标签都是相同的(从相同的NSArray中选择问题)，但是如何将已编码的标签连接到特定的情节提要.

Basically I am making an app (a simple game) using storyboards where a question will pop up on the screen and the user has to answer it. They have the option to move onto the next question or to record their response. I have created an NSArray which has a list of questions and I want them to appear in a label randomly (the label will pick one of the questions from the NSArray at random to display). The way I want to do this though is so that each storyboard has a question so once one question has been answered you can move onto the next storyboard where the next question will be displayed in a label. The labels in each storyboard will be the same (picking questions from the same NSArray) but how do I connect a label that has been coded to a specific storyboard.

问题出在这里:

第一张图显示了第一个情节提要，您可以在其中选择难度，但是我不希望标签(问题4?")显示在此情节提要上.我希望它可以显示在故事板上，例如第二张图片中

The first image shows the first storyboard where you can choose a difficulty but I don't want the label ("Question 4?") to display on this storyboard. I want it to display on storyboards such as that in the second picture

(图像1)- http://tinypic.com/r/149nuo0/8

(图像2)- http://tinypic.com/r/fk9yls/8

我的问题是如何使标签停止显示在第一张图像(项目中的此特定故事板)上?

My question is how do I get the label to stop showing on the first image (this specific storyboard in my project)?

这是我的代码:

.h文件

    #import <UIKit/UIKit.h>

    @interface ViewController : UIViewController
    {
        NSArray *questionArray;
        UILabel *questionLabel;
    }


@property (weak, nonatomic) IBOutlet UILabel *questionLabel;

@end

.m文件

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    //create question array
    questionArray = [NSArray arrayWithObjects:@"Question 1?", @"Question 2?", @"Question 3?", @"Question 4?", @"Question 5", @"Question 6", @"Question 7", @"Question 8", nil];

    //random a question
    int lowerBound = 0;
    int upperBound = [questionArray count] - 1;
    int randomValue = lowerBound + arc4random() % (upperBound - lowerBound);

    //create UILabel
    questionLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 300, 70)];
    [questionLabel setTextAlignment:NSTextAlignmentCenter];
    [questionLabel setText:[questionArray objectAtIndex:randomValue]];
    [self.view addSubview:questionLabel];


}

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

@end

我真的是编程新手，所以将不胜感激.预先感谢.

I am really new to programming so any help would be greatly appreciated. Thanks in advance.

推荐答案

尝试一下.

1)在情节提要中创建2个视图控制器.将该视图控制器的类设置为您创建的类名称.

1) Create 2 view controllers in your storyboard. Set the class of that view controller as the class name you created.

在这里，我为SecondViewController设置了类.

Here, I set the class for the SecondViewController.

2)删除ViewController和.m中ViewController中的所有代码.

2) Remove all the code in ViewController both .h and .m.

3)连接SecondViewController中的属性.

4)SecondViewController代码:

#import "SecondViewController.h"

@interface SecondViewController ()
{
    NSArray *questionArray;
}

@end

@implementation SecondViewController


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

    questionArray = [NSArray arrayWithObjects:@"Question 1?", @"Question 2?", @"Question 3?", @"Question 4?", nil];

    //random a question
    int lowerBound = 0;
    int upperBound = [questionArray count] - 1;
    int randomValue = lowerBound + arc4random() % (upperBound - lowerBound);

    //create UILabel
    [self.questionLabel setTextAlignment:NSTextAlignmentCenter];
    [self.questionLabel setText:[questionArray objectAtIndex:randomValue]];
    [self.view addSubview:self.questionLabel];
}

- (IBAction)nextQuestionButtonClicked:(id)sender {

    //random a question again
    int lowerBound = 0;
    int upperBound = [questionArray count] - 1;
    int randomValue = lowerBound + arc4random() % (upperBound - lowerBound);

    [self.questionLabel setText:[questionArray objectAtIndex:randomValue]];
}

@end

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