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我已经完成了苹果开发者工具资源中的第一个教程,您可以在其中进行输入、标签和按钮,我想要的是,当您按下按钮时,它会将您带到一个新场景,所以我已经设置了 segue,并且我现在将其命名为“testPush”,当我按下按钮时,我实际上如何让它移动我收到一条错误消息

**Thread 1: signal SIGABRT**

它正在回复的代码是这样的

return UIApplicationMain(argc, argv, nil, NSStringFromClass([HelloWorldAppDelegate class]));

任何人都有任何想法,我知道你需要添加代码才能使 segue 工作,但是我所看到的一切都没有意义,或者它只是一段代码,几乎没有关于你如何让它工作的说明等. 感谢任何和所有的帮助

您可能需要的其他东西我不确定场景一是否被调用:HelloWorldViewController场景二被调用:HelloWorldViewController2

编辑

这是我的脚本中的代码,您需要,谢谢。HelloWorldViewController.m

    #import "HelloWorldViewController.h"
    @interface HelloWorldViewController ()
    @property (weak, nonatomic) IBOutlet UITextField *textField;
    @property (weak, nonatomic) IBOutlet UILabel *label;
    - (IBAction)changeGreeting:(id)sender;
    @end
@implementation HelloWorldViewController
- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

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

- (IBAction)changeGreeting:(id)sender {

    self.userName = self.textField.text;

    NSString *nameString = self.userName;
    if ([nameString length] == 0) {
        nameString = @"World";
    }
    NSString *greeting = [[NSString alloc] initWithFormat:@"Hello, %@!", nameString];
    self.label.text = greeting;
}

    - (BOOL)textFieldShouldReturn:(UITextField *)theTextField {
        if (theTextField == self.textField) {
            [theTextField resignFirstResponder];
        }
        return YES;
    }

@end

HelloWorldViewController.h

#import <UIKit/UIKit.h>

@interface HelloWorldViewController : UIViewController <UITextFieldDelegate>

@property (copy,nonatomic) NSString *userName;

@end

和 main.m

#import <UIKit/UIKit.h>

#import "HelloWorldAppDelegate.h"

int main(int argc, char *argv[])
{
    @autoreleasepool {
        return UIApplicationMain(argc, argv, nil, NSStringFromClass([HelloWorldAppDelegate class]));
    }
}
4

1 回答 1

1

尝试performseguewithidentifier在您的 中添加一个IBAction,如下所示:

- (IBAction)changeGreeting:(id)sender {

self.userName = self.textField.text;

NSString *nameString = self.userName;
if ([nameString length] == 0) {
    nameString = @"World";
}
NSString *greeting = [[NSString alloc] initWithFormat:@"Hello, %@!", nameString];
self.label.text = greeting;

[self performSegueWithIdentifier:@"segueId" sender:nil];
}

那应该为您推送新内容。

于 2013-08-27T13:53:03.293 回答